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Preprints
https://doi.org/10.5194/essd-2020-227
© Author(s) 2020. This work is distributed under
the Creative Commons Attribution 4.0 License.
https://doi.org/10.5194/essd-2020-227
© Author(s) 2020. This work is distributed under
the Creative Commons Attribution 4.0 License.

  09 Oct 2020

09 Oct 2020

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This preprint is currently under review for the journal ESSD.

Global transpiration data from sap flow measurements: the SAPFLUXNET database

Rafael Poyatos1,2, Víctor Granda1,3, Víctor Flo1, Mark A. Adams4,5, Balázs Adorján6, David Aguadé1, Marcos P.M. Aidar7, Scott Allen8, M. Susana Alvarado-Barrientos9, Kristina J. Anderson-Teixeira10,11, Luiza Maria Aparecido12,13, M. Altaf Arain14, Ismael Aranda15, Heidi Asbjornsen16, Robert Baxter17, Eric Beamesderfer18,19, Z. Carter Berry20, Daniel Berveiller21, Bethany Blakely22, Johnny Boggs23, Gil Bohrer24, Paul V. Bolstad25, Damien Bonal26, Rosvel Bracho27, Patricia Brito28, Jason Brodeur29, Fernando Casanoves30, Jérôme Chave31, Hui Chen32, Cesar Cisneros33,34, Kenneth Clark35, Edoardo Cremonese36, Jorge S. David37, Teresa S. David37,38, Nicolas Delpierre39,40, Ankur R. Desai41, Frederic C. Do42, Michal Dohnal43, Jean-Christophe Domec44,45, Sebinasi Dzikiti46, Colin Edgar47, Rebekka Eichstaedt48,, Tarek S. El-Madany49, Jan Elbers50, Cleiton B. Eller51, Eugénie S. Euskirchen47, Brent Ewers52, Patrick Fonti53, Alicia Forner54, David I. Forrester53, Helber C. Freitas55,56, Marta Galvagno36, Omar Garcia-Tejera57, Chandra Prasad Ghimire58,34, Teresa E. Gimeno59,60, John Grace61, André Granier62, Anne Griebel63,64, Yan Guangyu32, Mark B. Gush65, Paul Hanson66, Niles J. Hasselquist67, Ingo Heinrich68, Virginia Hernandez-Santana69, Valentine Herrmann70, Teemu Hölttä71, Friso Holwerda72, Dang Hongzhong73, James Irvine61, Supat Isarangkool Na Ayutthaya74, Paul G. Jarvis61,, Hubert Jochheim75, Carlos A. Joly76,77, Julia Kaplick78,79, Hyun Seok Kim80,81,82, Leif Klemedtsson83, Heather Kropp84,85, Fredrik Lagergren86, Patrick Lane87, Petra Lang88, Andrei Lapenas89, Víctor Lechuga90, Minsu Lee80, Christoph Leuschner91, Jean-Marc Limousin92, Juan Carlos Linares93, Maj-Lena Linderson86, Andres Lindroth86, Pilar Llorens94, Álvaro López-Bernal95, Michael M. Loranty96, Dietmar Lüttschwager75, Cate Macinnis-Ng79, Isabelle Maréchaux97, Timothy A. Martin98, Ashley Matheny99, Nate McDowell100, Sean McMahon101, Patrick Meir102,61, Ilona Mészáros6, Mirco Migliavacca49, Patrick Mitchell103, Meelis Mölder104, Leonardo Montagnani105,106, Georgianne W. Moore107, Ryogo Nakada108, Furong Niu109,110, Rachael H. Nolan63, Richard Norby111, Kimberly Novick112, Walter Oberhuber113, Nikolaus Obojes114, Christopher A. Oishi115, Rafael S. Oliveira51, Ram Oren116,117, Jean-Marc Ourcival92, Teemu Paljakka118, Oscar Perez-Priego119,49, Pablo L. Peri120,121,122, Richard L. Peters123,53, Sebastian Pfautsch124, William T. Pockman125, Yakir Preisler126, Katherine Rascher127, George Robinson128, Humberto Rocha129, Alain Rocheteau42, Alexander Röll110, Bruno Rosado130, Lucy Rowland131, Alexey V. Rubtsov132, Santiago Sabaté1,133, Yann Salmon134,135, Roberto L. Salomón136,137, Elisenda Sánchez-Costa138, Karina V. R. Schäfer139, Bernhard Schuldt140, Alexandr Shashkin141, Clément Stahl142, Marko Stojanović143, Juan Carlos Suárez144,145, Ge Sun23, Justyna Szatniewska143, Fyodor Tatarinov126, Miroslav Tesař146, Frank M. Thomas147, Pantana Tor-ngern148,149, Josef Urban150,151, Fernando Valladares152,153, Christiaan van der Tol154, Ilja van Meerveld155, Andrej Varlagin156, Holm Voigt157, Jeffrey Warren158, Christiane Werner159, Willy Werner160, Gerhard Wieser161, Lisa Wingate162, Stan Wullschleger163, Koong Yi164,165, Roman Zweifel166, Kathy Steppe167, Maurizio Mencuccini1,168, and Jordi Martínez-Vilalta1,2 Rafael Poyatos et al.
  • 1CREAF, E08193 Bellaterra (Cerdanyola del Vallès), Catalonia, Spain
  • 2Universitat Autònoma de Barcelona, E08193 Bellaterra, (Cerdanyola del Vallès), Catalonia, Spain
  • 3Joint Research Unit CREAF-CTFC, Bellaterra, Catalonia, Spain.
  • 4Faculty of Science Engineering and Technology, Swinburne University of Technology, Hawthorn, Vic 3122 AUSTRALIA
  • 5School of Life and Environmental Sciences, University of Sydney, Camperdown, New South Wales, Australia
  • 6Department of Botany, University of Debrecen, Faculty of Science and Technology, Egyetem tér 1, 4032 Debrecen, Hungary
  • 7Plant Physiology and Biochemistry Reserach Nucleus, Institute fo Botany, São Paulo, Brazil
  • 8Department of Natural Resources and Environmental Science. University of Nevada, Reno, USA
  • 9Red Ecología Funcional, Instituto de Ecología A.C., Xalapa, México
  • 10Center for Tropical Forest Science-Forest Global Earth Observatory; Smithsonian Tropical Research Institute; Panama, Republic of Panama
  • 11Conservation Ecology Center, Smithsonian Conservation Biology Institute, Front Royal, VA, USA
  • 12Department of Ecosystem Science and Management, Texas A&M University, College Station, Texas, USA
  • 13School of Earth and Space Exploration, Arizona State University, Tempe, Arizona, USA
  • 14School of Earth, Environment & Society and McMaster Centre for Climate Change, McMaster University, Hamilton, Ontario, Canada
  • 15National Institute for Agricultural and Food Research and Technology (INIA), Forest Reseach Centre (CIFOR), Department of Forest Ecology and Genetics, Avda. A Coruña km 7.5, E-28040 Madrid, Spain
  • 16Department of Natural Resources and the Environment, University of New Hampshire, Durham, NH USA
  • 17Department of Biosciences, University of Durham, Durham, UK
  • 18School of Geography and Earth Sciences and McMaster Centre for Climate Change, McMaster University, Hamilton, Ontario, Canada
  • 19School of Informatics, Computing & Cyber Systems, Northern Arizona University, Flagstaff, Arizona, USA
  • 20Schmid College of Science and Technology, Chapman University, Orange, CA 92866, USA
  • 21Université Paris-Saclay, CNRS, AgroParisTech, Ecologie Systématique et Evolution, 91405, Orsay, France
  • 22University of Illinois at Urbana-Champaign, Urbana-Champaign, IL, USA
  • 23Eastern Forest Environmental Threat Assessment Center, Southern Research Station, USDA Forest Service, Research Triangle Park, NC 27709, USA
  • 24Department of Civil, Environmental and Geodetic Engineering, Ohio State University, 405 Hitchcock Hall, 2070 Neil Avenue, Columbus, OH 43210, USA
  • 25Department of Forest Resources, University of Minnesota, Saint Paul, MN, USA
  • 26Université de Lorraine, INRAE, AgroParisTech, 54000 Nancy, France
  • 27School of Forest Resources and Conservation, University of Florida, Gainesville, FL 32611, USA
  • 28Department of Botany, Ecology and Plant Physiology, University of La Laguna (ULL), Apdo. 456, 38200 La Laguna, Tenerife, Spain
  • 29McMaster University Library, McMaster University, Hamilton, Ontario, Canada
  • 30CATIE-Centro Agronómico Tropical de Investigación y Enseñanza, Costa Rica
  • 31Laboratoire Evolution and Diversité Biologique, CNRS, UPS, IRD, Bâtiment 4R1 Université Paul Sabatier, 118 route de Narbonne, 31062 Toulouse cedex 4, France
  • 32Key Laboratory of the Ministry of Education for Coastal and Wetland Ecosystems, School of Life Sciences, Xiamen University, Xiamen, Fujian 361005, China.
  • 33Carrera de Ingeniería Ambiental, Facultad de Ingeniería, Universidad Nacional de Chimborazo, EC060108, Riobamba, Ecuador
  • 34Faculty of Geo-information and Earth Observation (ITC), University of Twente, Enschede, Hengelosestraat 99, 7514 AE Enschede, The Netherlands
  • 35USDA Forest Service, Northern Research Station, Silas Little Experimental Forest, New Lisbon, New Jersey 08064 USA
  • 36Climate Change Unit, Environmental Protection Agency of Aosta Valley, Saint Christophe, 11020, Italy
  • 37Centro de Estudos Florestais, Instituto Superior de Agronomia, Universidade de Lisboa, Tapada da Ajuda, 1349-017 Lisboa, Portugal
  • 38Instituto Nacional de Investigação Agrária e Veterinária I.P., Quinta do Marquês, Av. da República, 2780-159 Oeiras, Portugal
  • 39Institut Universitaire de France (IUF), 75231 PARIS, France
  • 40Université Paris-Saclay, CNRS, AgroParisTech, Ecologie Systématique et Evolution, 91405, Orsay, France
  • 41Dept of Atmospheric and Oceanic Sciences, University of Wisconsin-Madison, 1225 W Dayton St, Madison, WI 53706 USA
  • 42Eco&Sols, Univ Montpellier, CIRAD, INRAE, Institut Agro, IRD, 34060 Montpellier, France
  • 43Czech Technical University in Prague, Faculty of Civil Engineering, Thakurova 7, 16629, Prague, Czech Republic
  • 44Bordeaux Sciences Agro, UMR 1391 INRA-BSA, France
  • 45Nicholas School of the Environment, Duke University, USA
  • 46Department of Horticultural Science, University of Stellenbosch, South Africa
  • 47University of Alaska Fairbanks, Institute of Arctic Biology, Fairbanks, AK 99775, USA
  • 48Faculty of Regional and Environmental Sciences – Geobotany, University of Trier, Behringstraße 21, Trier 54296, Germany
  • 49Max Planck Institute for Biogeochemistry, Hans-Knöll-Str. 10, Jena, Germany
  • 50Wageningen University and Research, Water Systems and Global Change Group, P.O. Box 47, 6700AA Wageningen, The Netherlands
  • 51Department of Plant Biology, University of Campinas, Campinas 13083-862, Brazil
  • 52Department of Botany, University of Wyoming, Laramie, WY, USA
  • 53Swiss Federal Institute for Forest, Snow and Landscape Research WSL, Zuercherstrasse 111, 8903 Birmensdorf, Switzerland
  • 54Laboratorio Internacional de Cambio Global (LINCGlobal), Departamento de Biogeografía y Cambio Global, Museo Nacional de Ciencias Naturales, MNCN, CSIC, C/Serrano 115 dpdo, E-28006 Madrid, Spain
  • 55São Paulo State University (Unesp), School of Sciences, Bauru, Brazil
  • 56University of São Paulo, Institute of Astronomy, Geophysics and Atmospheric Sciences, São Paulo, Brazil
  • 57Efficient Use of Water Program, Institut de Recerca i Tecnologia Agroalimentàries (IRTA), Parc de Gardeny, Edifici Fruitcentre, 25003 Lleida, Spain
  • 58AgResearch, Lincoln Research Centre, Private bag 4749, Christchurch 8140, New Zealand
  • 59Basque Centre for Climate Change (BC3), 48940 Leioa, Spain
  • 60Basque Foundation for Science, 48008, Bilbao, Spain
  • 61School of Geosciences, University of Edinburgh, Edinburgh UK
  • 62NRAE, UMR SILVA 1434, Champenoux, 54280, France
  • 63Hawkesbury Institute for the Environment, Western Sydney University, Sydney, NSW, Australia
  • 64School of Ecosystem and Forest Sciences, The University of Melbourne, 500 Yarra Boulevard, Richmond, VIC 3121, Australia
  • 65Science & Collections Division, Royal Horticultural Society, Wisley, Woking, Surrey, GU23 6QB, United Kingdom
  • 66Environmental Sciences Division, Oak Ridge National Laboartory, Oak Ridge, Tennessee 37831 USA
  • 67Department of Forest Ecology and Management, Swedish University of Agricultural Sciences, Umeå, Sweden
  • 68Section Climate Dynamics and Landscape Evolution, Helmholtz Centre Potsdam, GFZ German Research Centre for Geosciences, 14473 Potsdam, Germany
  • 69Irrigation and Crop Ecophysiology Group, Instituto de Recursos Naturales y Agrobiología de Sevilla (IRNAS, CSIC). Avenida Reina Mercedes, n.º 10, 41012-Sevilla, Spain
  • 70Conservation Ecology Center; Smithsonian Conservation Biology Institute; Front Royal, VA, USA
  • 71Institute for Atmospheric and Earth System Research/Forest Sciences, Faculty of Agriculture and Forestry, University of Helsinki, Finland
  • 72Centro de Ciencias de la Atmósfera, Universidad Nacional Autónoma de México, Mexico City, Mexico.
  • 73Institute of Desertification Studies, Chinese Academy of Forestry, Beijing 100091, China
  • 74Department of Horticulture, Faculty of Agriculture, Khon Kaen University, Khon Kaen, Thailand
  • 75Leibniz Centre for Agricultural Landscape Research (ZALF), Eberswalder Str. 84, 15374 Müncheberg, Germany
  • 76Brazilian Platform of Biodiversity and Ecosystem Services/BPBES, Brazil
  • 77Departamento de Biologia Vegetal, Instituto de Biologia, Universidade Estadual de Campinas, Campinas, São Paulo, Brazil
  • 78Head Office of Forest Protection, Brandenburg State Forestry Center of Excellence, 16225 Eberswalde, Germany
  • 79School of Biological Sciences, University of Auckland, Auckland, New Zealand
  • 80Department of Forest Sciences, Seoul National Univeristy, Seoul, Rep of Korea
  • 81National Center for Agro Meteorology, Seoul, Rep of Korea
  • 82Research Institute for Agriculture and Life Sciences, Seoul National University, Seoul, Rep of Korea
  • 83Department of Earth Sciences, Gothenburg Univ., Guldhedsgatan 5A, PO Box 460, SE 405 30 Gothenburg, Sweden
  • 84Environmental Studies, Hamilton College, Clinton, NY, USA
  • 85Geography Department, Colgate University, Hamilton, NY, USA
  • 86Department of Physical Geography and Ecosystem Science, Lund University, Lund, Sweden
  • 87School of Ecosystem and Forest Sciences, The University of Melbourne, Parkville, Victoria, 3010 Australia
  • 88Landeshauptstadt München, Referat für Gesundheit und Umwelt, Nachhaltige Entwicklung, Umweltplanung, SG Ressourcenschutz, 80335 München, Germany
  • 89Department of Geography and Planning, University at Albany, NY, USA
  • 90Department of Animal Biology, Vegetal Biology and Ecology. University of Jaén, Spain
  • 91Plant Ecology, University of Goettingen, 37073 Goettingen, Germany
  • 92CEFE, Univ Montpellier, CNRS, EPHE, IRD, Univ Paul Valéry Montpellier 3, Montpellier, France
  • 93Department of Physical, Chemical and Natural Systems,University Pablo de Olavide, 41013 Seville, Spain
  • 94Surface Hydrology and Erosion group, Institute of Environmental Assessment and Water Research, CSIC, Barcelona, Spain
  • 95Departamento de Agronomía, Universidad de Córdoba, 14071 Córdoba, Spain
  • 96Department of Geography, Colgate University, Hamilton, NY, USA
  • 97AMAP, Univ Montpellier, CIRAD, CNRS, INRAE, IRD, 34000 Montpellier, France
  • 98University of Florida, School of Forest Resources and Conservation, 136 Newins-Ziegler Hall, Gainesville, FL 32611, USA
  • 99Department of Geological Sciences, Jackson School of Geosciences, University of Texas at Austin, Austin, Texas, USA
  • 100Pacific Northwest National Laboratory, Richland, WA, USA
  • 101Center for Tropical Forest Science‐Forest Global Earth Observatory, Smithsonian Environmental Research Center, Edgewater, MD, 21307 USA
  • 102Research School of Biology, Australian National University, ACT 2601 Australia
  • 103CSIRO Agriculture and Food, Sandy Bay, Tasmania 7005, Australia
  • 104Dept of Physical Geography and Ecosystem Science, University of Lund, Sweden
  • 105Faculty of Science and Technilogy, Free University of Bolzano, Piazza Università 5, Bolzano, Italy
  • 106Forest Services, Autonomous Province of Bolzano, Bolzano, Italy
  • 107Department of Ecology and Conservation Biology, Texas A&M University, College Station, Texas, USA
  • 108Hokkaido Regional Breeding Office, Forest Tree Breeding Center, Forestry and Forest Products Research Institute, Ebetsu, Hokkaido, Japan
  • 109School of Natural Resources and the Environment, University of Arizona, Tucson, AZ 85721, USA
  • 110Tropical Silviculture and Forest Ecology, University of Goettingen, Büsgenweg 1, 37077 Göttingen, Germany
  • 111Department of Ecology & Evolutionary Biology, University of Tennessee, Knoxville, TN USA
  • 112O’Neill School of Public and Environmental Affairs, Indiana University-Bloomington, Bloomington, IN, USA
  • 113University of Innsbruck, Department of Botany, Sternwartestrasse 15, 6020 Innsbruck, Austria
  • 114EURAC Research, Institute for Alpine Environment, Viale Druso 1, Bolzano, Italy
  • 115USDA Forest Service, Southern Research Station, Coweeta Hydrologic Laboratory, Otto, NC, USA
  • 116Department of Forest Sciences, University of Helsinki, P.O. Box 27, Helsinki FI-00014, Finland
  • 117Division of Environmental Science & Policy, Nicholas School of the Environment, and Department of Civil & Environmental Engineering, Pratt School of Engineering, Duke University, Durham, North Carolina, USA
  • 118Institute for Atmospheric and Earth System Research / Forest Sciences, Faculty of Agriculture and Forestry, University of Helsinki, Helsinki, Finland
  • 119Biological sciences department, Macquarie University, Sydney, NSW, Australia
  • 120National Institute of Agricultural Technology (INTA), CC 332, CP 9400, Río Gallegos, Santa Cruz, Argentina
  • 121National Scientific and Technical Research Council of Argentina (CONICET)
  • 122National University of Southern Patagonia (UNPA)
  • 123Laboratory of Plant Ecology, Faculty of Bioscience Engineering, Ghent University, Coupure links 653, B-9000 Ghent, Belgium
  • 124Urban Studies, School of Social Sciences, Western Sydney University, Locked Bag 1797, NSW 2751, Australia
  • 125Department of Biology, University of New Mexico, Albuquerque, NM, USA
  • 126The Earth and Planetary Science Department, Weizmann Institute of Science, Rehovot, Israel
  • 127University of Cologne, Faculty of Medicine and University Hospital Cologne, Cologne, Germany
  • 128Department of Biological Science, University at Albany, NY, USA
  • 129Laboratorio de Clima e Biosfera, Instituto de Astronomia Geofisica e Ciencias Atmosfericas, Universidade de Sao Paulo, Brazil
  • 130epartment of Ecology, IBRAG, Universidade do Estado do Rio de Janeiro (UERJ). R. São Francisco Xavier, 524, PHLC, Sala 220. CEP 20550900, Maracanã, Rio de Janeiro, RJ, Brazil
  • 131College of life and environmental science, University of Exeter, Laver Building, North Park Road, EX4 4QE, United Kingdom
  • 132Laboratory for integral studies of forest dynamics of Eurasia, Siberian Federal University, Krasnoyarsk, Russia
  • 133Department of Evolutionary Biology, Ecology, and Environmental Sciences, University of Barcelona (UB), Barcelona 08028, Spain
  • 134Institute for Atmospheric and Earth System Research (INAR)/Forest, University of Helsinki, 00014 University of Helsinki, Finland
  • 135Institute for Atmospheric and Earth System Research (INAR)/Physics, University of Helsinki, 00014 University of Helsinki, Finland
  • 136Forest Genetics and Ecophysiology Research Group, Universidad Politécnica de Madrid, Ciudad Universitaria s/n, 28040 Madrid, Spain
  • 137Laboratory of Plant Ecology, Department of Plants and Crops, Faculty of Bioscience Engineering, Ghent University, Coupure Links 653, 9000 Ghent, Belgium.
  • 138IRTA, Institute of Agrifood Research and Technology, Torre Marimon, E-08140 Caldes de Montbui, Barcelona, Spain
  • 139Earth and Environmental Science Department, Rutgers University Newark, 195 University Av, Newark, NJ 07102, USA
  • 140University of Würzburg, Julius-von-Sachs-Institute for Biological Sciences, Chair of Ecophysiology and Vegetation Ecology, Julius-von-Sachs-Platz 3, 97082 Würzburg, Germany
  • 141Sukachev Institute of Forest of the Siberian Branch of the RAS, Krasnoyarsk, Russian Federation.
  • 142UMR EcoFoG, CNRS, CIRAD, INRAE, AgroParisTech, Université des Antilles, Université de Guyane, 97310 Kourou, France
  • 143Global Change Research Institute of the Czech Academy of Sciences, Bělidla 4a, 603 00, Brno, Czech Republic
  • 144Centro de Investigaciones Amazónicas CIMAZ Macagual César Augusto Estrada González, Grupo de Investigaciones Agroecosistemas y Conservación en Bosques Amazónicos-GAIA, Florencia, Caquetá, Colombia
  • 145Universidad de la Amazonia, Programa de Ingeniería Agroecológica, Facultad de Ingeniería, Florencia, Caquetá, Colombia
  • 146Institute of Hydrodynamics, Academy of Sciences of the Czech Republic, Prague, Czech Republic
  • 147Trier University, Faculty of Regional and Environmental Sciences, Geobotany, Behringstr. 21, D-54296, Trier, Germany
  • 148Department of Environmental Science, Faculty of Science, Chulalongkorn University, Bangkok 10330 Thailand
  • 149Environment, Health and Social Data Analytics Research Group, Chulalongkorn University, Bangkok 10330 Thailand
  • 150Department of Forest Botany, Dendrology and Geobiocenology, Faculty of Forestry and Wood Technology, Mendel University in Brno, Zemedelska 3, 61300 Brno, Czech Republic
  • 151Laboratory for Complex Studies of Forest Dynamics in Eurasia, Siberian Federal University, Akademgorodok 50A-K2, Krasnoyarsk, Russia
  • 152Departamento de Biología y Geología, Escuela Superior de Ciencias Experimentales y Tecnológicas, Universidad Rey Juan Carlos, C/Tulipán s/n, E-28933 Móstoles, Spain
  • 153Laboratorio Internacional de Cambio Global (LINCGlobal), Departamento de Biogeografía y Cambio Global, Museo Nacional de Ciencias Naturales, MNCN, CSIC, C/Serrano 115 dpdo, E-28006 Madrid, Spain
  • 154University of Twente, Faculty ITC, P.O. Box 217, 7500 AE Enschede, The Netherlands
  • 155Department of Geography, Hydrology and Climate, University of Zurich, Winterthurerstrasse 190, 8057 Zurich, Switzerland
  • 156A.N. Severtsov Institute of Ecology and Evolution, Russian Academy of Sciences, 119071, Leninsky pr.33, Moscow, Russia
  • 157ZEF Center for Development Research, University of Bonn, Genscherallee 3, 53113 Bonn, Germany
  • 158Environmental Sciences Division, Oak Ridge National Laboratory, Oak Ridge, TN 37831 USA
  • 159Ecosystem Physiology, University of Freiburg, 79098 Freiburg, Germany
  • 160Geobotany Department, University of Trier, 54286, Trier, Germany
  • 161Division of Alpine Timberline Ecophysiology, Federal Research and Training Centre for Forests, Natural Hazards and Landscape (BFW), Rennerg 1, 6020 Innsbruck, Austria
  • 162INRAE, UMR ISPA 1391, Villenave D’Ornon, 33140, France
  • 163Environmental Sciences Division, Oak Ridge National Laboratory, Oak Ridge, TN 37831, USA
  • 164Department of Environmental Sciences, University of Virginia, Charlottesville, VA 22904, USA
  • 165O’Neill School of Public and Environmental Affairs, Indiana University Bloomington, Bloomington, IN 47405, USA
  • 166Swiss Federal Institute for Forest, Snow and Landscape Research WSL, Birmensdorf, Switzerland
  • 167Laboratory of Plant Ecology, Faculty of Bioscience Engineering, Ghent University, B‐9000 Ghent, Belgium
  • 168ICREA, Barcelona, Catalonia, Spain
  • Deceased
  • Previously published under the name Rebekka Boegelein

Abstract. Plant transpiration links physiological responses of vegetation to water supply and demand with hydrological, energy and carbon budgets at the land-atmosphere interface. However, despite being the main land evaporative flux at the global scale, transpiration and its response to environmental drivers are currently not well constrained by observations. Here we introduce the first global compilation of whole-plant transpiration data from sap flow measurements (SAPFLUXNET, https://sapfluxnet.creaf.cat/). We harmonised and quality-controlled individual datasets supplied by contributors worldwide in a semi-automatic data workflow implemented in the R programming language. Datasets include sub-daily time series of sap flow and hydrometeorological drivers for one or more growing seasons, as well as metadata on the stand characteristics, plant attributes and technical details of the measurements. SAPFLUXNET contains 202 globally distributed datasets with sap flow time series for 2714 plants, mostly trees, of 174 species. SAPFLUXNET has a broad bioclimatic coverage, with woodland/shrubland and temperate forest biomes especially well-represented (80 % of the datasets). The measurements cover a wide variety of stand structural characteristics and plant sizes. The datasets encompass the period between 1995 and 2018, with 50 % of the datasets being at least 3 years long. Accompanying radiation and vapour pressure deficit data are available for most of the datasets, while on-site soil water content is available for 56 % of the datasets. Many datasets contain data for species that make up 90 % or more of the total stand basal area, allowing the estimation of stand transpiration in diverse ecological settings. SAPFLUXNET adds to existing plant trait datasets, ecosystem flux networks and remote sensing products to help increase our understanding of plant water use, plant responses to drought and ecohydrological processes. SAPFLUXNET version 0.1.5 is freely available from the Zenodo repository ( https://doi.org/10.5281/zenodo.3971689, Poyatos et al., 2020a). The sapfluxnetr R package, designed to access, visualise and process SAPFLUXNET data is available from CRAN.

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SAPFLUXNET: A global database of sap flow measurements Rafael Poyatos, Víctor Granda, Víctor Flo, Roberto Molowny-Horas, Kathy Steppe, Maurizio Mencuccini, and Jordi Martínez-Vilalta https://doi.org/10.5281/zenodo.3971689

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Short summary
Transpiration is a key component of global water balance but it is poorly constrained from available observations. We present SAPFLUXNET, the first global database of tree-level transpiration from sap flow measurements, containing 202 datasets and covering a wide range of ecological conditions. SAPFLUXNET and its accompanying R software package sapfluxnetr will facilitate new data syntheses on the ecological factors driving water use and drought responses of trees and forests.
Transpiration is a key component of global water balance but it is poorly constrained from...
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