Global transpiration data from sap flow measurements: the SAPFLUXNET database
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Autor/a
Poyatos, Rafael
Granda, Víctor
Flo, Víctor
Adams, Mark A.
Adorján, Balázs
Aguadé, David
Aidar, Marcos P.M.
Allen, Scott
Garcia-Tejera, Omar
Sánchez-Costa, Elisenda
Fecha de publicación
2021-06-14ISSN
1866-3508
Resumen
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/, last access: 8 June 2021). We harmonized 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, visualize, and process SAPFLUXNET data – is available from CRAN.
Tipo de documento
Artículo
Versión del documento
Versión publicada
Lengua
Inglés
Materias (CDU)
631 - Agricultura. Agronomía. Maquinaria agrícola. Suelos. Edafología agrícola
Páginas
43
Publicado por
Copernicus Publications
Publicado en
Earth System Science Data
Citación
Poyatos, Rafael, Víctor Granda, Víctor Flo, Mark A. Adams, Balázs Adorján, David Aguadé, and Marcos P. M. Aidar et al. 2021. "Global Transpiration Data From Sap Flow Measurements: The SAPFLUXNET Database". Earth System Science Data 13 (6): 2607-2649. doi:10.5194/essd-13-2607-2021.
Número del acuerdo de la subvención
MICIU/Programa Estatal de I+D+I orientada a los retos de la sociedad/RTI2018-095297-J-100/ES/Una evaluación basada en datos de las respuestas a la sequía de los árboles y del uso del agua de los bosques a nivel global/
MINECO/Programa Estatal de I+D+I orientada a los retos de la sociedad/CGL2014-55883-JIN/ES/Una base de datos global de flujo de savia en plantas para descifrar los factores ecológicos de la regulación de la transpiración en plantas leñosas/
INIA/Programa Estatal de promoción del talento y su empleabilidad en I+D+I/CAS16-00207/ES/ /
Program
Ús Eficient de l'Aigua en Agricultura
Fructicultura
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