toggle visibility Search & Display Options

Select All    Deselect All
 |   | 
Details
   print
  Records Links
Author Perrin, A.-S.; Fujisaki, K.; Petitjean, C.; Sarrazin, M.; Godet, M.; Garric, B.; Horth, J.-C.; Balbino, L.C.; Filho, A.S.; de Almeida Machado, P.L.O.; Brossard, M. url  doi
openurl 
  Title Conversion of forest to agriculture in Amazonia with the chop-and-mulch method: Does it improve the soil carbon stock? Type Journal Article
  Year 2014 Publication Agriculture, Ecosystems and Environment Abbreviated Journal Agric. Ecosyst. Environ.  
  Volume 184 Issue Pages 101-114  
  Keywords Annual crops; Brachiaria; Deforestation; Fire-free; French Guiana; No-tillage  
  Abstract Fire-free forest conversion with organic inputs as an alternative to slash-and-burn could improve agro-ecosystem sustainability. We assessed soil carbon mass changes in a sandy-clayey and well-drained soil in French Guiana after forest clearing by the chop-and-mulch method and crop establishment. At the experimental site of Combi, native forest was cut down in October 2008; woody biomass was chopped and incorporated into the top 20cm of soil. After about one year of legume and grass cover, three forms of land management were compared: grassland (Urochloa ruziziensis), maize/soybean crop rotation with disk tillage and in direct seeding without tillage. There were four replicates. We measured 14.16kgm-2 of carbon in 2mm-sieved soil down to 2m depth for the initial forest. Forest clearing did not induce significant soil compaction; neither did any specific agricultural practice. In converted soils, C stocks were measured in the 0-30cm layer after each crop for three years. Carbon mass changes for soil fractions <2mm (soil C stock) and >2mm (soil C pool) in the 0-5, 5-10, 10-20 and 20-30cm soil layers were assessed on an equivalent soil mass basis. One year and 1.5 years after deforestation, higher C stocks (+0.64 to 1.16kgCm-2yr-1) and C pools (+0.52 to 0.90kgCm-2yr-1) were measured in converted soils, compared to those of the forest into the top 30cm of soil. However, the masses of carbon in these converted soils declined later. The highest rates of carbon decrease were measured between 1.5 and 2 years after forest conversion in the <2mm soil fraction, from 0.46kgCm-2yr-1 (in grassland soils) to 0.71kgCm-2yr-1 (in cropland under no tillage). The carbon pool declined during the third year at rates of 0.41kgCm-2yr-1 (cropland under disk tillage) to 0.76kgCm-2yr-1 (grassland soils). Three years after forest conversion, C masses in the top 30cm of soils for grassland showed similar values than for forest. In comparison, the carbon stock in cropped soils managed under no tillage in direct seeding (without mulch) was significantly 17% and 16% lower than in forest and grassland soils, respectively. None of the studied agricultural practices succeeded in accumulating carbon from the chopped forest biomass. © 2013 Elsevier B.V.  
  Address EMBRAPA Arroz e Feijao, Cx Postal 179, CEP 75375-000 Santo Antonio de Goias, GO, Brazil  
  Corporate Author Thesis  
  Publisher Place of Publication Editor  
  Language Summary Language Original Title  
  Series Editor Series Title Abbreviated Series Title  
  Series Volume Series Issue Edition  
  ISSN (up) 01678809 (Issn) ISBN Medium  
  Area Expedition Conference  
  Notes Export Date: 2 January 2014; Source: Scopus; Coden: Aeend; doi: 10.1016/j.agee.2013.11.009 Approved no  
  Call Number EcoFoG @ webmaster @ Serial 521  
Permanent link to this record
 

 
Author van Gorsel, E.; Delpierre, N.; Leuning, R.; Black, A.; Munger, J.W.; Wofsy, S.; Aubinet, M.; Feigenwinter, C.; Beringer, J.; Bonal, D.; Chen, B.Z.; Chen, J.Q.; Clement, R.; Davis, K.J.; Desai, A.R.; Dragoni, D.; Etzold, S.; Grunwald, T.; Gu, L.H.; Heinesch, B.; Hutyra, L.R.; Jans, W.W.P.; Kutsch, W.; Law, B.E.; Leclerc, M.Y.; Mammarella, I.; Montagnani, L.; Noormets, A.; Rebmann, C.; Wharton, S. openurl 
  Title Estimating nocturnal ecosystem respiration from the vertical turbulent flux and change in storage of CO2 Type Journal Article
  Year 2009 Publication Agricultural and Forest Meteorology Abbreviated Journal Agric. For. Meteorol.  
  Volume 149 Issue 11 Pages 1919-1930  
  Keywords Ecosystem respiration; Micrometeorology; Advection; u-star correction; Eddy covariance; Chamber; Process-based modelling  
  Abstract Micrometeorological measurements of night time ecosystem respiration can be systematically biased when stable atmospheric conditions lead to drainage flows associated with decoupling of air flow above and within plant canopies. The associated horizontal and vertical advective fluxes cannot be measured using instrumentation on the single towers typically used at micrometeorological sites. A common approach to minimize bias is to use a threshold in friction velocity, u*, to exclude periods when advection is assumed to be important, but this is problematic in situations when in-canopy flows are decoupled from the flow above. Using data from 25 flux stations in a wide variety of forest ecosystems globally, we examine the generality of a novel approach to estimating nocturnal respiration developed by van Gorsel et al. (van Gorsel, E., Leuning, R., Cleugh, H.A., Keith, H., Suni, T., 2007. Nocturnal carbon efflux: reconciliation of eddy covariance and chamber measurements using an alternative to the u*-threshold filtering technique. Tellus 59B, 397-403, Tellus, 59B, 307-403). The approach is based on the assumption that advection is small relative to the vertical turbulent flux (F-C) and change in storage (F-S) of CO2 in the few hours after sundown. The sum of F-C and F-S reach a maximum during this period which is used to derive a temperature response function for ecosystem respiration. Measured hourly soil temperatures are then used with this function to estimate respiration R-Rmax. The new approach yielded excellent agreement with (1) independent measurements using respiration chambers, (2) with estimates using ecosystem light-response curves of F-c + F-s extrapolated to zero light, R-LRC, and (3) with a detailed process-based forest ecosystem model, R-cast. At most sites respiration rates estimated using the u*-filter, R-ust, were smaller than R-Rmax, and R-LRC. Agreement of our approach with independent measurements indicates that R-Rmax, provides an excellent estimate of nighttime ecosystem respiration. (C) 2009 Elsevier B.V. All rights reserved.  
  Address [van Gorsel, Eva; Leuning, Ray] CSIRO Marine & Atmospher Res, Canberra, ACT 2061, Australia, Email: Eva.vangorsel@csiro.au  
  Corporate Author Thesis  
  Publisher ELSEVIER SCIENCE BV Place of Publication Editor  
  Language Summary Language Original Title  
  Series Editor Series Title Abbreviated Series Title  
  Series Volume Series Issue Edition  
  ISSN (up) 0168-1923 ISBN Medium  
  Area Expedition Conference  
  Notes ISI:000270640300013 Approved no  
  Call Number EcoFoG @ eric.marcon @ Serial 102  
Permanent link to this record
 

 
Author Wagner, F.; Herault, B.; Stahl, C.; Bonal, D.; Rossi, V. openurl 
  Title Modeling water availability for trees in tropical forests Type Journal Article
  Year 2011 Publication Agricultural and Forest Meteorology Abbreviated Journal Agric. For. Meteorol.  
  Volume 151 Issue 9 Pages 1202-1213  
  Keywords Water balance model; Amazonian rainforest; Time domain reflectometer; Bayesian inference; Tree drought stress  
  Abstract Modeling soil water availability for tropical trees is a prerequisite to predicting the future impact of climate change on tropical forests. In this paper we develop a discrete-time deterministic water balance model adapted to tropical rainforest climates, and we validate it on a large dataset that includes micrometeorological and soil parameters along a topographic gradient in a lowland forest of French Guiana. The model computes daily water fluxes (rainfall interception, drainage, tree transpiration and soil plus understorey evapotranspiration) and soil water content using three input variables: daily precipitation, potential evapotranspiration and solar radiation. A novel statistical approach is employed that uses Time Domain Reflectometer (TDR) soil moisture data to estimate water content at permanent wilting point and at field capacity, and root distribution. Inaccuracy of the TDR probes and other sources of uncertainty are taken into account by model calibration through a Bayesian framework. Model daily output includes relative extractable water, REW, i.e. the daily available water standardized by potential available water. The model succeeds in capturing temporal variations in REW regardless of topographic context. The low Root Mean Square Error of Predictions suggests that the model captures the most important drivers of soil water dynamics, i.e. water refilling and root water extraction. Our model thus provides a useful tool to explore the response of tropical forests to climate scenarios of changing rainfall regime and intensity. (C) 2011 Elsevier B.V. All rights reserved.  
  Address [Wagner, F; Herault, B] Univ Antilles Guyane, UMR Ecol Forets Guyane, F-97387 Kourou, France, Email: fabien.wagner@ecofog.gf  
  Corporate Author Thesis  
  Publisher Elsevier Science Bv Place of Publication Editor  
  Language Summary Language Original Title  
  Series Editor Series Title Abbreviated Series Title  
  Series Volume Series Issue Edition  
  ISSN (up) 0168-1923 ISBN Medium  
  Area Expedition Conference  
  Notes WOS:000294032000005 Approved no  
  Call Number EcoFoG @ webmaster @ Serial 337  
Permanent link to this record
 

 
Author Aguilos, M.; Hérault, B.; Burban, B.; Wagner, F.; Bonal, D. url  doi
openurl 
  Title What drives long-term variations in carbon flux and balance in a tropical rainforest in French Guiana? Type Journal Article
  Year 2018 Publication Agricultural and Forest Meteorology Abbreviated Journal  
  Volume 253–254 Issue Pages 114-123  
  Keywords Tropical rainforest; Nee; Gpp; Ecosystem respiration; Radiation; Drought  
  Abstract A thorough understanding of how tropical forests respond to climate is important to improve ecosystem process models and to reduce uncertainties in current and future global carbon balance calculations. The Amazon rainforest, a major contributor to the global carbon cycle, is subject to strong intra- and interannual variations in climate conditions. Understanding their effect on carbon fluxes between the ecosystem and the atmosphere and on the resulting carbon balance is still incomplete. We examined the long-term (over a 12-year period; 2004–2015) variations in gross primary productivity (GPP), ecosystem respiration (RE) and net ecosystem exchange (NEE) in a tropical rainforest in French Guiana and identified key climatic drivers influencing the changes. The study period was characterized by strong differences in climatic conditions among years, particularly differences in the intensity of the dry and wet seasons, as well as differences in annual carbon fluxes and balance. Annual average GPP varied from 3384.9?g?C?m-2?yr?1 (95% CI [3320.7, 3445.9]) to 4061.2?g?C?m-2?yr?1 (95% CI [3980.1, 4145.0]). RE varied even more than GPP, with a difference of 933.1?C?m-2?yr?1 between the minimum (3020.6?g?C?m-2?yr?1; 95% CI [2889.4, 3051.3]) and maximum (3953.7?g?C?m-2?yr?1; 95% CI [3887.6, 4019.6]) values. Although NEE showed large interannual variability (nine-fold), from ?65.6?g?C?m-2?yr?1 (95% CI [?4.4, ?126.0]) to ?590.5?g?C?m-2 yr?1 (95% CI [?532.3, ?651.6]), the forest remained a carbon sink over the 12-year period. A combination of global radiation (Rg), relative extractable water (REW) and soil temperature (Ts) explained 51% of the daily variations for GPP, 30% for RE and 39% for NEE. Global radiation was always the best predictor of these variations, but soil water content and temperature did also influence carbon fluxes and balance. Seasonally, Rg was the major controlling factor for GPP, RE and NEE during the wet season. During the dry season, variations in carbon fluxes and balance were poorly explained by climate factors. Yet, REW was the key driver of variations in NEE during the dry season. This study highlights that, over the long-term, carbon fluxes and balance in such tropical rainforest ecosystems are largely controlled by both radiation and water limitation. Even though variations in Rg have a greater impact on these fluxes, water limitation during seasonal droughts is enough to reduce ecosystem productivity, respiration and carbon uptake. The reduced precipitation expected in tropical rainforest areas under future climatic conditions will therefore strongly influence carbon fluxes and carbon uptake. This study also highlights the importance for land surface or dynamic global vegetation models to consider the main drivers of carbon fluxes and balance separately for dry and wet seasons.  
  Address  
  Corporate Author Thesis  
  Publisher Place of Publication Editor  
  Language Summary Language Original Title  
  Series Editor Series Title Abbreviated Series Title  
  Series Volume Series Issue Edition  
  ISSN (up) 0168-1923 ISBN Medium  
  Area Expedition Conference  
  Notes Approved no  
  Call Number EcoFoG @ webmaster @ Serial 792  
Permanent link to this record
 

 
Author Vedel, V.; Scotti, I. openurl 
  Title Promoting the promoter Type Journal Article
  Year 2011 Publication Plant Science Abbreviated Journal Plant Sci.  
  Volume 180 Issue 2 Pages 182-189  
  Keywords cis-Regulation; Evolutionary and developmental biology; Integrative evolution; Plant development; Population genetics; Transcription  
  Abstract Recent evolutionary studies clearly indicate that evolution is mainly driven by changes in the complex mechanisms of gene regulation and not solely by polymorphism in protein-encoding genes themselves. After a short description of the cis-regulatory mechanism, we intend in this review to argue that by applying newly available technologies and by merging research areas such as evolutionary and developmental biology, population genetics, ecology and molecular cell biology it is now possible to study evolution in an integrative way. We contend that, by analysing the effects of promoter sequence variation on phenotypic diversity in natural populations, we will soon be able to break the barrier between the study of extant genetic variability and the study of major developmental changes. This will lead to an integrative view of evolution at different scales. Because of their sessile nature and their continuous development, plants must permanently regulate their gene expression to react to their environment, and can, therefore, be considered as a remarkable model for these types of studies. (C) 2010 Elsevier Ireland Ltd. All rights reserved.  
  Address [Vedel, Vincent; Scotti, Ivan] INRA, UMR ECOFOG, Kourou 97387, French Guiana, Email: vincent.vedel@ecofog.gf  
  Corporate Author Thesis  
  Publisher ELSEVIER IRELAND LTD Place of Publication Editor  
  Language Summary Language Original Title  
  Series Editor Series Title Abbreviated Series Title  
  Series Volume Series Issue Edition  
  ISSN (up) 0168-9452 ISBN Medium  
  Area Expedition Conference  
  Notes ISI:000286562200002 Approved no  
  Call Number EcoFoG @ eric.marcon @ Serial 291  
Permanent link to this record
 

 
Author Staudt, K.; Serafimovich, A.; Siebicke, L.; Pyles, R.D.; Falge, E. url  openurl
  Title Vertical structure of evapotranspiration at a forest site (a case study) Type Journal Article
  Year 2011 Publication Agricultural and Forest Meteorology Abbreviated Journal Agric. For. Meterol.  
  Volume 151 Issue 6 Pages 709-729  
  Keywords Eddy-covariance; Evapotranspiration; In-canopy profiles; Model; Picea abies L.; Sap flux; coniferous forest; ecosystem modeling; eddy covariance; evapotranspiration; forest canopy; sap flow; Fichtelgebirge; Germany; Picea abies  
  Abstract The components of ecosystem evapotranspiration of a Norway spruce forest (Picea abies L.) as well as the vertical structure of canopy evapotranspiration were analyzed with a combination of measurements and models for a case study of 5 days in September 2007. Eddy-covariance and sap flux measurements were performed at several heights within the canopy at the FLUXNET site Waldstein-Weidenbrunnen (DE-Bay) in the Fichtelgebirge mountains in Germany. Within and above canopy fluxes were simulated with two stand-scale models, the 1D multilayer model ACASA that includes a third-order turbulence closure and the 3D model STANDFLUX. The soil and understory evapotranspiration captured with the eddy-covariance system in the trunk space constituted 10% of ecosystem evapotranspiration measured with the eddy-covariance system above the canopy. A comparison of transpiration measured with the sap flux technique and inferred from below and above canopy eddy-covariance systems revealed higher estimates from eddy-covariance measurements than for sap flux measurements. The relative influences of possible sources of this mismatch, such as the assumption of negligible contribution of evaporation from intercepted water, and differences between the eddy-covariance flux footprint and the area used for scaling sap flux measurements, were discussed. Ecosystem evapotranspiration as well as canopy transpiration simulated with the two models captured the dynamics of the measurements well, but slightly underestimated eddy-covariance values. Profile measurements and models also gave us the chance to assess in-canopy profiles of canopy evapotranspiration and the contributions of in-canopy layers. For daytime and a coupled or partly coupled canopy, mean simulated profiles of both models agreed well with eddy-covariance measurements, with a similar performance of the ACASA and the STANDFLUX model. Both models underestimated profiles for nighttime and decoupled conditions. During daytime, the upper half of the canopy contributed approximately 80% to canopy evapotranspiration, whereas during nighttime the contribution shifted to lower parts of the canopy. © 2010 Elsevier B.V.  
  Address Max Planck Institute for Chemistry, Biogeochemistry Department, Joh.-J.-Becherweg 27, 55128 Mainz, Germany  
  Corporate Author Thesis  
  Publisher Place of Publication Editor  
  Language Summary Language Original Title  
  Series Editor Series Title Abbreviated Series Title  
  Series Volume Series Issue Edition  
  ISSN (up) 01681923 (Issn) ISBN Medium  
  Area Expedition Conference  
  Notes Cited By (since 1996): 3; Export Date: 21 October 2011; Source: Scopus; Coden: Afmee; doi: 10.1016/j.agrformet.2010.10.009; Language of Original Document: English; Correspondence Address: Staudt, K.; University of Bayreuth, Department of Micrometeorology, 95440 Bayreuth, Germany; email: katharina.staudt@uni-bayreuth.de Approved no  
  Call Number EcoFoG @ webmaster @ Serial 349  
Permanent link to this record
 

 
Author Fu, Z.; Gerken, T.; Bromley, G.; Araújo, A.; Bonal, D.; Burban, B.; Ficklin, D.; Fuentes, J.D.; Goulden, M.; Hirano, T.; Kosugi, Y.; Liddell, M.; Nicolini, G.; Niu, S.; Roupsard, O.; Stefani, P.; Mi, C.; Tofte, Z.; Xiao, J.; Valentini, R.; Wolf, S.; Stoy, P.C. url  doi
openurl 
  Title The surface-atmosphere exchange of carbon dioxide in tropical rainforests: Sensitivity to environmental drivers and flux measurement methodology Type Journal Article
  Year 2018 Publication Agricultural and Forest Meteorology Abbreviated Journal Agric. For. Meterol.  
  Volume 263 Issue Pages 292-307  
  Keywords Climate variability; Ecosystem respiration; Eddy covariance; Gross primary productivity; Net ecosystem carbon dioxide exchange; Tropical rainforest; acclimation; air temperature; anthropogenic effect; atmosphere-biosphere interaction; biodiversity; carbon flux; climate change; Cmip; eddy covariance; environmental change; flux measurement; methodology; net ecosystem exchange; net ecosystem production; radiative forcing; rainforest; sensitivity analysis; tropical environment  
  Abstract Tropical rainforests play a central role in the Earth system by regulating climate, maintaining biodiversity, and sequestering carbon. They are under threat by direct anthropogenic impacts like deforestation and the indirect anthropogenic impacts of climate change. A synthesis of the factors that determine the net ecosystem exchange of carbon dioxide (NEE) at the site scale across different forests in the tropical rainforest biome has not been undertaken to date. Here, we study NEE and its components, gross ecosystem productivity (GEP) and ecosystem respiration (RE), across thirteen natural and managed forests within the tropical rainforest biome with 63 total site-years of eddy covariance data. Our results reveal that the five ecosystems with the largest annual gross carbon uptake by photosynthesis (i.e. GEP > 3000 g C m−2 y-1) have the lowest net carbon uptake – or even carbon losses – versus other study ecosystems because RE is of a similar magnitude. Sites that provided subcanopy CO2 storage observations had higher average magnitudes of GEP and RE and lower average magnitudes of NEE, highlighting the importance of measurement methodology for understanding carbon dynamics in ecosystems with characteristically tall and dense vegetation. A path analysis revealed that vapor pressure deficit (VPD) played a greater role than soil moisture or air temperature in constraining GEP under light saturated conditions across most study sites, but to differing degrees from -0.31 to -0.87 μmol CO2 m−2 s-1 hPa-1. Climate projections from 13 general circulation models (CMIP5) under the representative concentration pathway that generates 8.5 W m−2 of radiative forcing suggest that many current tropical rainforest sites on the lower end of the current temperature range are likely to reach a climate space similar to present-day warmer sites by the year 2050, warmer sites will reach a climate not currently experienced, and all forests are likely to experience higher VPD. Results demonstrate the need to quantify if and how mature tropical trees acclimate to heat and water stress, and to further develop flux-partitioning and gap-filling algorithms for defensible estimates of carbon exchange in tropical rainforests. © 2018 Elsevier B.V.  
  Address Department of Environmental Systems Science, ETH Zurich, Zurich, 8092, Switzerland  
  Corporate Author Thesis  
  Publisher Elsevier B.V. Place of Publication Editor  
  Language Summary Language Original Title  
  Series Editor Series Title Abbreviated Series Title  
  Series Volume Series Issue Edition  
  ISSN (up) 01681923 (Issn) ISBN Medium  
  Area Expedition Conference  
  Notes Export Date: 12 November 2018; Coden: Afmee; Correspondence Address: Stoy, P.C.; Department of Land Resources and Environmental Sciences, Montana State UniversityUnited States; email: paul.stoy@montana.edu; Funding details: ANR-10-LABX-25-01; Funding details: U.S. Department of Energy, DOE, SC0011097; Funding details: Agence Nationale de la Recherche, ANR; Funding details: 1702029; Funding details: 1552976; Funding details: Graduate School, Ohio State University; Funding details: National Natural Science Foundation of China, NSFC, 31625006; Funding text 1: PCS and JDF acknowledges funding support from the U.S. Department of Energy as part of the GoAmazon project (Grant SC0011097 ). PCS additionally acknowledges the U.S. National Science Foundation grants 1552976 and 1702029 , and The Graduate School at Montana State University . ZF is supported by the China Scholarship Council and National Natural Science Foundation of China ( 31625006 ). This work used eddy covariance data acquired and shared by the FLUXNET community, including the AmeriFlux, AfriFlux, AsiaFlux, CarboAfrica, LBA, and TERN- OzFlux networks. The FLUXNET eddy covariance data processing and harmonization was carried out by the ICOS Ecosystem Thematic Center, AmeriFlux Management Project and Fluxdata project of FLUXNET, with the support of CDIAC, and the OzFlux, ChinaFlux and AsiaFlux offices. The Guyaflux program belongs to the SOERE F-ORE-T which is supported annually by Ecofor, Allenvi and the French national research infrastructure ANAEE-F. The Guyaflux program also received support from the “Observatoire du Carbone en Guyane” and an “investissement d'avenir” grant from the Agence Nationale de la Recherche (CEBA, ref ANR-10-LABX-25-01). Funding for the site PA-SPn was provided by the North-South Centre of ETH Zurich. We acknowledge the World Climate Research Programme's Working Group on Coupled Modeling for the CMIP and thank the climate modeling groups for producing and making available their model output. For CMIP, the U.S. Department of Energy's Program for Climate Model Diagnosis and Intercomparison provides coordinating support and led development of software infrastructure in partnership with the Global Organization for Earth System Science Portals. Angela Tang and Taylor Rodenburg provided valuable comments to earlier drafts of this manuscript. We thank Dr. Tim Hill and two anonymous reviewers for their constructive comments on the manuscript.; References: Acevedo, O.C., Moraes, O.L.L., Degrazia, G.A., Fitzjarrald, D.R., Manzi, A.O., Campos, J.G., Is friction velocity the most appropriate scale for correcting nocturnal carbon dioxide fluxes? (2009) Agric. For. Meteorol., 149, pp. 1-10; Aguilos, M., Hérault, B., Burban, B., Wagner, F., Bonal, D., What drives long-term variations in carbon flux and balance in a tropical rainforest in French Guiana? Agric (2018) For. Meteorol., 253-254, pp. 114-123; Ahlström, A., Raupach, M.R., Schurgers, G., Smith, B., Arneth, A., Jung, M., Reichstein, M., Jain, A.K., The dominant role of semi-arid ecosystems in the trend and variability of the land CO2 sink (2015) Science, 348 (80), pp. 895-899; Aiba, S.I., Kitayama, K., Structure, composition and species diversity in an altitude-substrate matrix of rain forest tree communities on Mount Kinabalu (1999) Borneo. Plant Ecol., 140, pp. 139-157; Andreae, M.O., Artaxo, P., Brandão, C., Carswell, F.E., Ciccioli, P., da Costa, A.L., Culf, A.D., Waterloo, M.J., Biogeochemical cycling of carbon, water, energy, trace gases, and aerosols in Amazonia: the LBA-EUSTACH experiments (2002) J. Geophys. Res., 107, p. 8066; Andreae, M.O., Acevedo, O.C., Araùjo, A., Artaxo, P., Barbosa, C.G.G., Barbosa, H.M.J., Brito, J., Yáñez-Serrano, A.M., The Amazon Tall Tower Observatory (ATTO): overview of pilot measurements on ecosystem ecology, meteorology, trace gases, and aerosols (2015) Atmos. Chem. Phys., 15, pp. 10723-10776; Araújo, A.C., Nobre, A.D., Kruijt, B., Elbers, J.A., Dallarosa, R., Stefani, P., Von Randow, C., Kabat, P., Comparative measurements of carbon dioxide fluxes from two nearby towers in a central Amazonian rainforest: The Manaus LBA site (2002) J. Geophys. Res., 107, p. 8090; Asner, G.P., Anderson, C.B., Martin, R.E., Tupayachi, R., Knapp, D.E., Sinca, F., Landscape biogeochemistry reflected in shifting distributions of chemical traits in the Amazon forest canopy (2015) Nat. Geosci., 8, pp. 567-573; Asner, G.P., Martin, R.E., Knapp, D.E., Tupayachi, R., Anderson, C.B., Sinca, F., Vaughn, N.R., Llactayo, W., Airborne laser-guided imaging spectroscopy to map forest trait diversity and guide conservation (2017) Science, 355 (80), pp. 385-389; Avissar, R., Werth, D., Global hydroclimatological teleconnections resulting from tropical deforestation (2005) J. Hydrometeorol., 6, pp. 134-145; Baccini, A., Walker, W., Carvalho, L., Farina, M., Sulla-Menashe, D., Houghton, R.A., Tropical forests are a net carbon source based on aboveground measurements of gain and loss (2017) Science, 358 (80), pp. 230-234; Belelli Marchesini, L., Bombelli, A., Chiti, T., Consalvo, C., Forgione, A., Grieco, E., Mazzenga, F., Valentini, R., Ankasa flux tower: a new research facility for the study of the carbon cycle in a primary tropical forest in Africa (2008) Proceedings of the Open Science Conference on Africa and Carbon Cycle: The CarboAfrica Project; Beringer, J., Hutley, L.B., McHugh, I., Arndt, S.K., Campbell, D., Cleugh, H.A., Cleverly, J., Wardlaw, T., An introduction to the Australian and New Zealand flux tower network – OzFlux (2016) Biogeosciences, 13, pp. 5895-5916; Bonal, D., Bosc, A., Ponton, S., Goret, J.-Y.J.Y., Burban, B.T., Gross, P., Bonnefond, J.M.J.-M., Granier, A., Impact of severe dry season on net ecosystem exchange in the Neotropical rainforest of French Guiana (2008) Glob. Chang. Biol., 14, pp. 1917-1933; Borma, L.S., da Rocha, H.R., Cabral, O.M., von Randow, C., Collicchio, E., Kurzatkowski, D., Brugger, P.J., Artaxo, P., Atmosphere and hydrological controls of the evapotranspiration over a floodplain forest in the Bananal Island region, Amazonia (2009) J. Geophys. Res. Biogeosci., 114; Bradford, M.G., Metcalfe, D.J., Ford, A., Liddell, M.J., McKeown, A., Floristics, stand structure and aboveground biomass of a 25-ha rainforest plot in the Wet Tropics of Australia (2014) J. Trop. For. Sci., pp. 543-553; Braga, N., da, S., Vitória, A.P., Souza, G.M., Barros, C.F., Freitas, L., Weak relationships between leaf phenology and isohydric and anisohydric behavior in lowland wet tropical forest trees (2016) Biotropica, 48, pp. 453-464; Carswell, F.E., Costa, A.L., Palheta, M., Malhi, Y., Meir, P., Costa, J.D.P.R., Ruivo, M.D.L., Grace, J., Seasonality in CO2 and H2O flux at an eastern Amazonian rain forest (2002) J. Geophys. Res. D Atmos., p. 107; Chambers, J.Q., Tribuzy, E.S., Toledo, L.C., Crispim, B.F., Higuchi, N., dos Santos, J., Araújo, A.C., Trumbore, S.E., Respiration from a tropical forest ecosystem: partitioning of sources and low carbon use efficiency (2004) Ecol. Appl., 14, pp. 72-88; Chambers, J., Davies, S., Koven, C., Kueppers, L., Leung, R., McDowell, N., Norby, R., Rogers, A., Next Generation Ecosystem Experiment (NGEE) Tropics. US DOE NGEE Trop. white paper. (2014); Chiti, T., Certini, G., Grieco, E., Valentini, R., The role of soil in storing carbon in tropical rainforests: the case of Ankasa Park, Ghana (2010) Plant Soil, 331, pp. 453-461; Cleveland, C.C., Wieder, W.R., Reed, S.C., Townsend, A.R., Experimental drought in a tropical rain forest increases soil carbon dioxide losses to the atmosphere (2010) Ecology, 91, pp. 2313-2323; Cleveland, C.C., Townsend, A.R., Taylor, P., Alvarez-Clare, S., Bustamante, M.M.C., Chuyong, G., Dobrowski, S.Z., Wieder, W.R., Relationships among net primary productivity, nutrients and climate in tropical rain forest: a pan-tropical analysis (2011) Ecol. Lett.; Cusack, D.F., Chou, W.W., Yang, W.H., Harmon, M.E., Silver, W.L., Controls on long-term root and leaf litter decomposition in neotropical forests (2009) Glob. Chang. Biol., 15, pp. 1339-1355; da Rocha, H.R., Manzi, A.O., Cabral, O.M., Miller, S.D., Goulden, M.L., Saleska, S.R., Coupe, N.R., Maia, J.F., Patterns of water and heat flux across a biome gradient from tropical forest to savanna in Brazil (2009) J. Geophys. Res. Biogeosci., 114. , G00B12; Dargie, G.C., Lewis, S.L., Lawson, I.T., Mitchard, E.T.A., Page, S.E., Bocko, Y.E., Ifo, S.A., Age, extent and carbon storage of the central Congo Basin peatland complex (2017) Nature, 542, pp. 86-89; de Araújo, A.C., Dolman, A.J., Waterloo, M.J., Gash, J.H.C., Kruijt, B., Zanchi, F.B., de Lange, J.M.E., Backer, J., The spatial variability of CO2 storage and the interpretation of eddy covariance fluxes in central Amazonia (2010) Agric. For. Meteorol., 150, pp. 226-237; Dixon, R.K., Solomon, A.M., Brown, S., Houghton, R.A., Trexier, M.C., Wisniewski, J., Carbon pools and flux of global forest ecosystems (1994) Science, 263 (80), pp. 185-190; Fisher, R.A., Williams, M., Do Vale, R.L., Da Costa, A.L., Meir, P., Evidence from Amazonian forests is consistent with isohydric control of leaf water potential (2006) Plant Cell Environ., 29, pp. 151-165; Foley, J.A., DeFries, R., Asner, G.P., Barford, C., Bonan, G., Carpenter, S.R., Chapin, F.S., Snyder, P.K., Global consequences of land use (2005) Science, 309, pp. 570-574; Fu, Z., Dong, J., Zhou, Y., Stoy, P.C., Niu, S., Long term trend and interannual variability of land carbon uptake—the attribution and processes (2017) Environ. Res. Lett., 12, p. 14018; Fuentes, J.D., Chamecki, M., dos Santos, R.M.N., Von Randow, C., Stoy, P.C., Katul, G., Fitzjarrald, D., Yañez-Serrano, A.M., Linking meteorology, turbulence, and air chemistry in the amazon rain forest (2016) Bull. Am. Meteorol. Soc., 97, pp. 2329-2342; Gerken, T., Chamecki, M., Fuentes, J.D., Air-parcel residence times within forest canopies (2017) Boundary-Layer Meteorol., 165, pp. 29-54; Giardina, F., Konings, A.G., Kennedy, D., Alemohammad, S.H., Oliveira, R.S., Uriarte, M., Gentine, P., Tall Amazonian forests are less sensitive to precipitation variability (2018) Nat. Geosci., 11, pp. 405-409; Gibson, L., Lee, T.M., Koh, L.P., Brook, B.W., Gardner, T.A., Barlow, J., Peres, C.A., Sodhi, N.S., Primary forests are irreplaceable for sustaining tropical biodiversity (2011) Nature, 478, pp. 378-381; Goulden, M.L., Miller, S.D., Da Rocha, H.R., Nocturnal cold air drainage and pooling in a tropical forest (2006) J. Geophys. Res. Atmos., p. 111; Grace, J., Lloyd, J., Mcintyre, J., Miranda, A., Meir, P., Miranda, H., Moncrieff, J., Gash, J., Fluxes of carbon dioxide and water vapour over an undisturbed tropical forest in south-west Amazonia (1995) Glob. Chang. Biol., 1, pp. 1-12; Grace, J., Malhi, Y., Lloyd, J., McIntyre, J., Miranda, A.C., Meir, P., Miranda, H.S., The use of eddy covariance to infer the net carbon dioxide uptake of Brazilian rain forest (1996) Glob. Chang. Biol., 2, pp. 209-217; Grace, J., Nagy, L., Forsberg, B.R., Artaxo, P., The Amazon carbon balance: an evaluation of methods and results (2016) Interactions Between Biosphere, Atmosphere and Human Land Use in the Amazon Basin., pp. 79-100. , Springer Berlin Heidelberg; Hall, C.A.S., Tian, H., Qi, Y., Pontius, G., Cornell, J., Modelling spatial and temporal patterns of tropical land use change (1995) J. Biogeogr., 22, pp. 753-757; Hayek, M.N., Wehr, R., Longo, M., Hutyra, L.R., Wiedemann, K., Munger, J.W., Bonal, D., Wofsy, S.C., A novel correction for biases in forest eddy covariance carbon balance (2018) Agric. For. Meteorol., 250-251, pp. 90-101; Hirano, T., Segah, H., Harada, T., Limin, S., June, T., Hirata, R., Osaki, M., Carbon dioxide balance of a tropical peat swamp forest in Kalimantan, Indonesia (2007) Glob. Chang. Biol., 13, pp. 412-425; Hirano, T., Jauhiainen, J., Inoue, T., Takahashi, H., Controls on the carbon balance of tropical peatlands (2008) Ecosystems, 12, pp. 873-887; Hirano, T., Segah, H., Kusin, K., Limin, S., Takahashi, H., Osaki, M., Effects of disturbances on the carbon balance of tropical peat swamp forests (2012) Glob. Change Biol., 18, pp. 3410-3422; Huete, A.R., Didan, K., Shimabukuro, Y.E., Ratana, P., Saleska, S.R., Hutyra, L.R., Yang, W., Myneni, R., Amazon rainforests green‐up with sunlight in dry season (2006) Geophys. Res. Lett., 33. , L06405; Huete, A.R., Restrepo-Coupe, N., Ratana, P., Didan, K., Saleska, S.R., Ichii, K., Panuthai, S., Gamo, M., Multiple site tower flux and remote sensing comparisons of tropical forest dynamics in Monsoon Asia (2008) Agric. For. Meteorol., 148, pp. 748-760; Hutyra, L.R., Munger, J.W., Saleska, S.R., Gottlieb, E., Daube, B.C., Dunn, A.L., Amaral, D.F., Wofsy, S.C., Seasonal controls on the exchange of carbon and water in an Amazonian rain forest (2007) J. Geophys. Res. Biogeosci., 112; Hutyra, L.R., Munger, J.W., Hammond-Pyle, E., Saleska, S.R., Restrepo-Coupe, N., Daube, B.C., de Camargo, P.B., Wofsy, S.C., Resolving systematic errors in estimates of net ecosystem exchange of CO2 and ecosystem respiration in a tropical forest biome (2008) Agric. For. Meteorol., 148, pp. 1266-1279; Inoue, Y., Ichie, T., Kenzo, T., Yoneyama, A., Kumagai, T., Nakashizuka, T., Effects of rainfall exclusion on leaf gas exchange traits and osmotic adjustment in mature canpopy trees of Dryobalanops aromatica (Sipterocarpaceae) in a Malaysian tropical rain forest (2016) J. Trop. Pediatr., pp. 1-11; Jocher, G., Ottosson Löfvenius, M., De Simon, G., Hörnlund, T., Linder, S., Lundmark, T., Marshall, J., Peichl, M., Apparent winter CO2 uptake by a boreal forest due to decoupling (2017) Agric. For. Meteorol., 232, pp. 23-34; Kiew, F., Hirata, R., Hirano, T., Wong, G.X., Aeries, E.B., Musin, K.K., Waili, J.W., Melling, L., CO2 balance of a secondary tropical peat swamp forest in Sarawak, Malaysia (2018) Agric. For. Meteorol., 248, pp. 494-501; Kim, D.-H., Sexton, J.O., Townshend, J.R., Accelerated deforestation in the humid tropics from the 1990s to the 2000s (2015) Geophys. Res. Lett., 42, pp. 3495-3501; Klein, T., The variability of stomatal sensitivity to leaf water potential across tree species indicates a continuum between isohydric and anisohydric behaviours (2014) Funct. Ecol., 28, pp. 1313-1320; Konings, A.G., Gentine, P., Global variations in ecosystem‐scale isohydricity (2016) Glob. Change Biol.; Körner, C., Leaf diffusive conductances in the major vegetation types of the globe (1995) Ecophysiology of Photosynthesis, pp. 463-490. , Springer; Kosugi, Y., Takanashi, S., Ohkubo, S., Matsuo, N., Tani, M., Mitani, T., Tsutsumi, D., Nik, A.R., CO2 exchange of a tropical rainforest at Pasoh in Peninsular Malaysia (2008) Agric. For. Meteorol., 148, pp. 439-452; Kosugi, Y., Takanashi, S., Tani, M., Ohkubo, S., Matsuo, N., Itoh, M., Noguchi, S., Nik, A.R., Effect of inter-annual climate variability on evapotranspiration and canopy CO2 exchange of a tropical rainforest in Peninsular Malaysia (2012) J. For. Res., 17, pp. 227-240; Kruijt, B., Elbers, J.A., Von Randow, C., Araujo, A.C., Oliveira, P.J., Culf, A., Manzi, A.O., Moors, E.J., The robustness of eddy correlation fluxes for Amazon rain forest conditions (2004) Ecol. Appl., 14, pp. 101-113; Kumagai, T., Porporato, A., Strategies of a Bornean tropical rainforest water use as a function of rainfall regime: isohydric or anisohydric? (2012) Plant Cell Environ., 35, pp. 61-71; Kutsch, W.L., Herbst, M., Vanselow, R., Hummelshøj, P., Jensen, N.O., Kappen, L., Stomatal acclimation influences water and carbon fluxes of a beech canopy in northern Germany (2001) Basic Appl. Ecol., 2, pp. 265-281; Lasslop, G., Reichstein, M., Papale, D., Richardson, A.D., Arneth, A., Barr, A.G., Stoy, P.C., Wohlfahrt, G., Separation of net ecosystem exchange into assimilation and respiration using a light response curve approach: critical issues and global evaluation (2010) Glob. Chang. Biol., 16, pp. 187-208; Levine, N.M., Zhang, K., Longo, M., Baccini, A., Phillips, O.L., Lewis, S.L., Alvarez-Dávila, E., Moorcroft, P.R., Ecosystem heterogeneity determines the ecological resilience of the Amazon to climate change (2016) Proc. Natl. Acad. Sci., 113, pp. 793-797; Lewis, S.L., Brando, P.M., Phillips, O.L., van der Heijden, G.M.F., Nepstad, D., The 2010 amazon drought (2011) Science, 331 (80), p. 554; Loescher, H.W., Oberbauer, S.F., Gholz, H.L., Clark, D.B., Environmental controls on net ecosystem-level carbon exchange and productivity in a Central American tropical wet forest (2003) Glob. Chang. Biol., 9, p. 396; Lopes, A.P., Nelson, B.W., Wu, J., Graça, P.M.L., de, A., Tavares, J.V., Prohaska, N., Saleska, S.R., Leaf flush drives dry season green-up of the Central Amazon (2016) Remote Sens. Environ., 182, pp. 90-98; Malhi, Y., Nobre, A.D., Grace, J., Kruijt, B., Pereira, M.G.P., Culf, A., Scott, S., Carbon dioxide transfer over a Central Amazonian rain forest (1998) J. Geophys. Res., 103, pp. 31593-31612; Marchin, R.M., Broadhead, A.A., Bostic, L.E., Dunn, R.R., Hoffmann, W.A., Stomatal acclimation to vapour pressure deficit doubles transpiration of small tree seedlings with warming (2016) Plant Cell Environ., 39, pp. 2221-2234; Martens, C.S., Shay, T.J., Mendlovitz, H.P., Matross, D.M., Saleska, S.R., Wofsy, S.C., Stephen Woodward, W., Crill, P.M., Radon fluxes in tropical forest ecosystems of Brazilian Amazonia: night‐time CO2 net ecosystem exchange derived from radon and eddy covariance methods (2004) Glob. Chang. Biol., 10, pp. 618-629; Martinez-Vilalta, J., Poyatos, R., Aguade, D., Retana, J., Mencuccini, M., A new look at water transport regulation in plants (2014) New Phytol., 204, pp. 105-115; Matheny, A.M., Mirfenderesgi, G., Bohrer, G., Trait-based representation of hydrological functional properties of plants in weather and ecosystem models (2017) Plant Divers., 39, pp. 1-12; Meir, P., Grace, J., Miranda, A.C., Leaf respiration in two tropical rainforests: constraints on physiology by phosphorus, nitrogen and temperature (2001) Funct. Ecol., 15, pp. 378-387; Miller, S.D., Goulden, M.L., Menton, M.C., da Rocha, H.R., de Freitas, H.C., Silva, E., Figueira, A.M., de Sousa, C.A.D., Biometric and micrometeorological measurements of tropical forest carbon balance (2004) Ecol. Appl., 14, pp. 114-126; Mitchard, E.T.A., The tropical forest carbon cycle and climate change (2018) Nature, 559, pp. 527-534; Navarro, M.N.V., Jourdan, C., Sileye, T., Braconnier, S., Mialet-Serra, I., Saint-Andre, L., Dauzat, J., Roupsard, O., Fruit development, not GPP, drives seasonal variation in NPP in a tropical palm plantation (2008) Tree Physiol., 28, pp. 1661-1674; Nepstad, D.C., Moutinho, P., Dias‐Filho, M.B., Davidson, E., Cardinot, G., Markewitz, D., Figueiredo, R., Schwalbe, K., The effects of partial throughfall exclusion on canopy processes, aboveground production, and biogeochemistry of an Amazon forest (2002) J. Geophys. Res., 107. , 8085; Norby, R.J., De Kauwe, M.G., Domingues, T.F., Duursma, R.A., Ellsworth, D.S., Goll, D.S., Lapola, D.M., Zaehle, S., Model – data synthesis for the next generation of forest free-air CO2 enrichment (FACE) experiments (2015) New Phytol., pp. 17-28; Novick, K., Oren, R., Stoy, P.C., Juang, J.Y., Siqueira, M., Katul, G., The relationship between reference canopy conductance and simplified hydraulic architecture (2009) Adv. Water Resour., 32, pp. 809-819; Novick, K.A., Ficklin, D.L., Stoy, P.C., Williams, C.A., Bohrer, G., Oishi, A.C., Papuga, S.A., Phillips, R.P., The increasing importance of atmospheric demand for ecosystem water and carbon fluxes (2016) Nat. Clim. Change, 6, pp. 1023-1027; Oberbauer, S.F., Loescher, H.W., Clark, D.B., Effects of climate factors on daytime carbon exchange from an old growth forest in Costa rica (2000) Selbyana, pp. 66-73; Oren, R., Sperry, J.S., Katul, G.G., Pataki, D.E., Ewers, B.E., Phillips, N., Schäfer, K.V.R., Survey and synthesis of intra- and interspecific variation in stomatal sensitivity to vapour pressure deficit (1999) Plant Cell Environ., 22, pp. 1515-1526; Pan, Y., Birdsey, R.A., Fang, J., Houghton, R., Kauppi, P.E., Kurz, W.A., Phillips, O.L., Hayes, D., A large and persistent carbon sink in the world's forests (2011) Science, 333 (80). , 988 LP-993; Paoli, G.D., Curran, L.M., Slik, J.W.F., Soil nutrients affect spatial patterns of aboveground biomass and emergent tree density in southwestern Borneo (2008) Oecologia, 155, pp. 287-299; Papale, D., Reichstein, M., Aubinet, M., Canfora, E., Bernhofer, C., Kutsch, W., Longdoz, B., Yakir, D., Towards a standardized processing of Net Ecosystem Exchange measured with eddy covariance technique: algorithms and uncertainty estimation (2006) Biogeosciences, 3, pp. 571-583; Pau, S., Detto, M., Kim, Y., Still, C.J., Tropical forest temperature thresholds for gross primary productivity (2018) Ecosphere, 9; Pavlick, R., Drewry, D.T., Bohn, K., Reu, B., Kleidon, A., The Jena Diversity-Dynamic Global Vegetation Model (JeDi-DGVM): a diverse approach to representing terrestrial biogeography and biogeochemistry based on plant functional trade-offs (2013) Biogeosciences, 10, pp. 4137-4177; Phillips, O.L., Malhi, Y., Higuchi, N., Laurance, W.F., Núñez, P.V., Vásquez, R.M., Laurance, S.G., Grace, J., Changes in the carbon balance of tropical forests: Evidence from long-term plots (1998) Science, 282 (80). , 439 LP-442; Phillips, O.L., Aragão, L.E.O.C., Lewis, S.L., Fisher, J.B., Lloyd, J., López-González, G., Malhi, Y., Torres-Lezama, A., Drought sensitivity of the Amazon Rainforest (2009) Science, 323 (80), pp. 1344-1347; Powell, T.L., Wheeler, J.K., de Oliveira, A.A.R., da Costa, A.C.L., Saleska, S.R., Meir, P., Moorcroft, P.R., Differences in xylem and leaf hydraulic traits explain differences in drought tolerance among mature Amazon rainforest trees (2017) Glob. Change Biol.; Raich, J.W., Russell, A.E., Vitousek, P.M., Primary productivity and ecosystem development along an elevational gradient on Mauna Loa, Hawai'i (1997) Ecology, 78, pp. 707-721; Reichstein, M., Falge, E., Baldocchi, D., Papale, D., Aubinet, M., Berbigier, P., Bernhofer, C., Valentini, R., On the separation of net ecosystem exchange into assimilation and ecosystem respiration: review and improved algorithm (2005) Glob. Change Biol., 11, pp. 1424-1439; Restrepo-Coupe, N., da Rocha, H.R., Hutyra, L.R., da Araujo, A.C., Borma, L.S., Christoffersen, B., Cabral, O.M.R., Saleska, S.R., What drives the seasonality of photosynthesis across the Amazon basin? A cross-site analysis of eddy flux tower measurements from the Brasil flux network (2013) Agric. For. Meteorol.; Rice, W.R., Analyzing tables of statistical tests (1989) Evolution (N. Y.), 43, pp. 223-225; Richardson, A.D., Braswell, B.H., Hollinger, D.Y., Jenkins, J.P., Ollinger, S.V., Near-surface remote sensing of spatial and temporal variation in canopy phenology (2009) Ecol. Appl., 19, pp. 1417-1428; Roderick, M.L., Farquhar, G.D., The cause of decreased Pan evaporation over the past 50 years (2002) Science, 298 (80), pp. 1410-1411; Roupsard, O., Bonnefond, J.-M., Irvine, M., Berbigier, P., Nouvellon, Y., Dauzat, J., Taga, S., Bouillet, J.-P., Partitioning energy and evapo-transpiration above and below a tropical palm canopy (2006) Agric. For. Meteorol., 139, pp. 252-268; Saleska, S.R., Miller, S.D., Matross, D.M., Goulden, M., Wofsy, S., da Rocha, H.R., de Camargo, P.B., Silva, H., Carbon in Amazon forests: unexpected seasonal fluxes and disturbance-induced losses (2003) Science, 302 (80), pp. 1554-1557; Saleska, S.R., Didan, K., Huete, A.R., Da Rocha, H.R., Amazon forests green-up during 2005 drought (2007) Science, 318 (80), p. 612; Saleska, S., Da Rocha, H., Kruijt, B., Nobre, A., Ecosystem carbon fluxes and Amazonian forest metabolism (2009) Amazonia Glob. Change, pp. 389-407; Saleska, S.R., Wu, J., Guan, K., Araujo, A.C., Huete, A., Nobre, A.D., Restrepo-Coupe, N., Dry-season greening of Amazon forests (2016) Nature, 531, pp. E4-E5; Salinas, N., Malhi, Y., Meir, P., Silman, M., Roman Cuesta, R., Huaman, J., Salinas, D., Farfan, F., The sensitivity of tropical leaf litter decomposition to temperature: results from a large-scale leaf translocation experiment along an elevation gradient in Peruvian forests (2011) New Phytol., 189, pp. 967-977; Santana, R.A., Dias-Júnior, C.Q., da Silva, J.T., Fuentes, J.D., do Vale, R.S., Alves, E.G., dos Santos, R.M.N., Manzi, A.O., Air turbulence characteristics at multiple sites in and above the Amazon rainforest canopy (2018) Agric. For. Meteorol., 260-261, pp. 41-54; Santos, D.M., Acevedo, O.C., Chamecki, M., Fuentes, J.D., Gerken, T., Stoy, P.C., Temporal scales of the nocturnal flow within and above a forest canopy in Amazonia (2016) Boundary-Layer Meteorol., pp. 1-26; Siddiq, Z., Chen, Y.-J., Zhang, Y.-J., Zhang, J.-L., Cao, K.-F., More sensitive response of crown conductance to VPD and larger water consumption in tropical evergreen than in deciduous broadleaf timber trees (2017) Agric. For. Meteorol., 247, pp. 399-407; Sulman, B.N., Roman, D.T., Yi, K., Wang, L., Phillips, R.P., Novick, K.A., High atmospheric demand for water can limit forest carbon uptake and transpiration as severely as dry soil (2016) Geophys. Res. Lett., 43, pp. 9686-9695; Swann, A.L.S., Hoffman, F.M., Koven, C.D., Randerson, J.T., Plant responses to increasing CO2 reduce estimates of climate impacts on drought severity (2016) Proc. Natl. Acad. Sci. U. S. A., 113, pp. 10019-10024; Taylor, K.E., Stouffer, R.J., Meehl, G.A., An overview of CMIP5 and the experiment design (2012) Bull. Am. Meteorol. Soc.; Taylor, P.G., Cleveland, C.C., Wieder, W.R., Sullivan, B.W., Doughty, C.E., Dobrowski, S.Z., Townsend, A.R., Temperature and rainfall interact to control carbon cycling in tropical forests (2017) Ecol. Lett., 20, pp. 779-788; Thomas, C.K., Martin, J.G., Law, B.E., Davis, K., Toward biologically meaningful net carbon exchange estimates for tall, dense canopies: multi-level eddy covariance observations and canopy coupling regimes in a mature Douglas-fir forest in Oregon (2013) Agric. For. Meteorol., 173, pp. 14-27; Tóta, J., Fitzjarrald, D.R., da Silva Dias, M.A.F., Amazon rainforest exchange of carbon and subcanopy air flow: manaus LBA Site—a complex terrain condition (2012) Transfus. Apher. Sci., , 165067; Tyukavina, A., Baccini, A., Hansen, M.C., Potapov, P.V., Stehman, S.V., Houghton, R.A., Krylov, A.M., Goetz, S.J., Aboveground carbon loss in natural and managed tropical forests from 2000 to 2012 (2015) Environ. Res. Lett., 10, p. 74002; van Marle, M.J.E., Field, R.D., van der Werf, G.R., Estrada de Wagt, I.A., Houghton, R.A., Rizzo, L.V., Artaxo, P., Tsigaridis, K., Fire and deforestation dynamics in Amazonia (1973-2014) (2017) Glob. Biogeochem. Cycles, 31, pp. 24-38; Wieder, W.R., Cleveland, C.C., Townsend, A.R., Controls over leaf litter decomposition in wet tropical forests (2009) Ecology, 90, pp. 3333-3341; Wolf, S., Eugster, W., Majorek, S., Buchmann, N., Afforestation of tropical pasture only marginally affects ecosystem-scale evapotranspiration (2011) Ecosystems, 14, pp. 1264-1275; Wolf, S., Eugster, W., Potvin, C., Buchmann, N., Strong seasonal variations in net ecosystem CO2 exchange of a tropical pasture and afforestation in Panama (2011) Agric. For. Meteorol., 151, pp. 1139-1151; Wolf, S., Eugster, W., Potvin, C., Turner, B.L., Buchmann, N., Carbon sequestration potential of tropical pasture compared with afforestation in Panama (2011) Glob. Change Biol., 17, pp. 2763-2780; Wood, A.W., Leung, L.R., Sridhar, V., Lettenmaier, D.P., Hydrologic implications of dynamical and statistical approaches to downscaling climate model outputs (2004) Clim. Change, 62, pp. 189-216; Wu, J., Guan, K., Hayek, M., Restrepo-Coupe, N., Wiedemann, K.T., Xu, X., Wehr, R., Saleska, S.R., Partitioning controls on Amazon forest photosynthesis between environmental and biotic factors at hourly to interannual timescales (2017) Glob. Change Biol., 23, pp. 1240-1257; Xiao, J., Liu, S., Stoy, P.C., Preface: impacts of extreme climate events and disturbances on carbon dynamics (2016) Biogeosciences, 13, pp. 3665-3675 Approved no  
  Call Number EcoFoG @ webmaster @ Serial 831  
Permanent link to this record
 

 
Author Van Langenhove, L.; Verryckt, L.T.; Bréchet, L.; Courtois, E.A.; Stahl, C.; Hofhansl, F.; Bauters, M.; Sardans, J.; Boeckx, P.; Fransen, E.; Peñuelas, J.; Janssens, I.A. doi  openurl
  Title Atmospheric deposition of elements and its relevance for nutrient budgets of tropical forests Type Journal Article
  Year 2020 Publication Biogeochemistry Abbreviated Journal Biogeochemistry  
  Volume 149 Issue 2 Pages 175-193  
  Keywords Litterfall; Nitrogen; Nutrient cycling; Phosphorus; Potassium; Throughfall; atmospheric deposition; canopy exchange; field method; forest floor; leaching; litterfall; nutrient cycling; phosphorus; potassium; precipitation (climatology); rainforest; tropical forest; French Guiana  
  Abstract Atmospheric deposition is an important component of the nutrient cycles of terrestrial ecosystems, but field measurements are especially scarce in tropical regions. In this study we analysed 15 months of precipitation chemistry collected in an old growth tropical forest located in French Guiana. We measured nutrient inputs via bulk precipitation and throughfall and used the canopy budget model to estimate nutrient fluxes via canopy exchange and dry deposition. Based on this method we quantified net fluxes of macronutrients and compared their contribution to internal cycling rates via litterfall. Our results suggest that while atmospheric deposition of nitrogen was relatively high (13 kg ha−1 year−1), and mainly in organic forms, the N inputs via litterfall were an order of magnitude higher. In contrast to nitrogen, we found that atmospheric deposition of phosphorus (0.5 kg ha−1 year−1) supplied up to one third of the annual litterfall input to the forest floor. Most strikingly, combined annual inputs of potassium via atmospheric deposition (14 kg ha−1 year−1) and canopy leaching (22 kg ha−1 year−1) were three times larger than internal nutrient recycling via litterfall (11 kg ha−1 year−1). We conclude that atmospheric deposition of phosphorus and especially potassium may play an important role in sustaining the productivity of this old-growth tropical rainforest. © 2020, Springer Nature Switzerland AG.  
  Address StatUa Center for Statistics, University of Antwerp, Prinsstraat 13, Antwerp, 2000, Belgium  
  Corporate Author Thesis  
  Publisher Springer Place of Publication Editor  
  Language Summary Language Original Title  
  Series Editor Series Title Abbreviated Series Title  
  Series Volume Series Issue Edition  
  ISSN (up) 01682563 (Issn) ISBN Medium  
  Area Expedition Conference  
  Notes Approved no  
  Call Number EcoFoG @ webmaster @ Serial 964  
Permanent link to this record
 

 
Author Siebicke, L.; Hunner, M.; Foken, T. url  openurl
  Title Aspects of CO 2 advection measurements Type Journal Article
  Year 2012 Publication Theoretical and Applied Climatology Abbreviated Journal Theor. Appl. Climatol.  
  Volume 109 Issue 1-2 Pages 109-131  
  Keywords  
  Abstract Observations of vegetation-atmosphere exchange of carbon dioxide (CO 2) by the eddy covariance (EC) technique are limited by difficult conditions such as nighttime and heterogeneous terrain. Thus, advective flux components are included into the net ecosystem exchange (NEE) budget. However, advection measurements are experimentally challenging and do not always help to solve the night flux problem of the EC technique. This study investigates alternative methods for the observation of horizontal advection, in particular horizontal concentration gradients, as well as different approaches to coordinate rotation and vertical advection. Continuous high-frequency measurements of the horizontal CO 2 concentration field are employed and compared to the often used discontinuous sequential sampling. Significant differences were found in the case of 30-min mean concentration values between the conventional discontinuous sampling approach and the complete observation of the time series by continuous sampling. Estimates of vertical advection rely on accurate estimates of vertical wind velocity (W). Therefore, different approaches to the planar fit coordinate rotation have been investigated. Sector-wise rotation was able to eliminate directional dependencies of mean W. Furthermore, the effect of the data set length used for rotation (window length) was investigated and was found to have significant impact on estimates of vertical advection, with larger window lengths yielding about 50% larger vertical advection. A sequential planar fit with controlled window length is proposed to give reproducible results. The different approaches to the measurement and calculation of horizontal and vertical advection presented are applied to data obtained during the exchange processes in mountainous region experiment at the FLUXNET site Waldstein-Weidenbrunnen (DE-Bay). Estimates of NEE including advection are compared to NEE from turbulent and storage flux alone without advection. NEE including vertical advection with sector-wise planar fit rotation and controlled window length and including horizontal advection from continuous gradient measurements, which were comprehensively bias corrected by a new approach, did compare well with the expected night flux error, with meteorological drivers of the fluxes and with soil chamber measurements. Unrealistically large and noisy values of horizontal advection from the conventional discontinuous sampling approach, which lead to unrealistic values of NEE, could be eliminated by the alternative approaches presented. We therefore suggest the further testing of those approaches at other sites in order to improve the accuracy of advection measurements and, subsequently, estimates of NEE. © 2011 Springer-Verlag.  
  Address Wind Cert Services, TÜV SÜD Industrie Service GmbH, Ludwig-Eckert-Str. 10, 93049 Regensburg, Germany  
  Corporate Author Thesis  
  Publisher Place of Publication Editor  
  Language Summary Language Original Title  
  Series Editor Series Title Abbreviated Series Title  
  Series Volume Series Issue Edition  
  ISSN (up) 0177798x (Issn) ISBN Medium  
  Area Expedition Conference  
  Notes Export Date: 27 June 2012; Source: Scopus; doi: 10.1007/s00704-011-0552-3; Language of Original Document: English; Correspondence Address: Siebicke, L.; Department of Micrometeorology, University of Bayreuth, Universitätsstr. 30, 95440 Bayreuth, Germany; email: lukas.siebicke@uni-bayreuth.de Approved no  
  Call Number EcoFoG @ webmaster @ Serial 406  
Permanent link to this record
 

 
Author Roggy, J.C.; Moiroud, A.; Lensi, R.; Domenach, A.M. openurl 
  Title Estimating N transfers between N-2-fixing actinorhizal species and the non-N-2-fixing Prunus avium under partially controlled conditions Type Journal Article
  Year 2004 Publication Biology and Fertility of Soils Abbreviated Journal Biol. Fertil. Soils  
  Volume 39 Issue 5 Pages 312-319  
  Keywords actinorhizal trees; mixed culture; litter; N transfer by roots; N-15  
  Abstract Two methods of N transfer between plants-by litter decomposition and root-to-root exchange-were examined in mixed plantations of N-fixing and non-fixing trees. Nitrogen transfers from decaying litters were measured by placing N-15-labelled litters from four actinorhizal tree species around shoots of containerized Prunus avium. Nitrogen transfers by root-to-root exchanges were measured after foliar NO3-N-15 fertilization of Alnus subcordata and Elaeagnus angustifolia growing in containers in association with P. avium. During the first 2 years of litter decomposition, from 5-20% of the N, depending on the litter identity, was released and taken up by P. avium. N availability in the different litters was strongly correlated with the amount of water-soluble N, which was highest in leaves of E. angustifolia. In the association between fixing and non-fixing plants, 7.5% of the A. subcordata N and 25% of E. angustifolia N was transferred to P. avium by root exchange. These results showed that the magnitude of N transfers by root exchange depended on the associated N-2-fixing species. Among the species investigated, E. angustifolia displayed the highest capacity for exudating N from roots as well as for releasing N from litters. These qualities make this tree a promising species for enhancing wood yields in mixed stands.  
  Address INRA, ENGREF, CIRAD, Unite Mixte Rech,Lab Ecol Forets Trop Guyane, Kourou 97387, French Guiana, Email: roggy.j@cirad.fr  
  Corporate Author Thesis  
  Publisher SPRINGER-VERLAG Place of Publication Editor  
  Language Summary Language Original Title  
  Series Editor Series Title Abbreviated Series Title  
  Series Volume Series Issue Edition  
  ISSN (up) 0178-2762 ISBN Medium  
  Area Expedition Conference  
  Notes ISI:000221197000002 Approved no  
  Call Number EcoFoG @ eric.marcon @ Serial 236  
Permanent link to this record
Select All    Deselect All
 |   | 
Details
   print

Save Citations:
Export Records: