A global database of sap flow measurements


Data will be downloaded from the Zenodo repository

Explore a brand new sap flow world!

Global coverage

Sapflow measurements from around the world

Data sharing and reuse

Promoting analyses of great scientific relevance and impact, and expanding the value of individual datasets

sapfluxnetr package

Explore and analyse the data in R


SAPFLUXNET is an initiative aiming at compiling a global database of sap flow measurements in plants led by CREAF researchers and an international team of collaborators. The main goal of SAPFLUXNET is to advance in the scientific understanding of the ecological factors driving plant transpiration across the globe.

SAPFLUXNET objectives

  1. To assemble a global database of sub-daily, tree-level sap flow, associated plant traits and site metadata.
  2. To estimate parameter-based traits related to physiological regulation of transpiration at scales from hours to entire growing seasons.
  3. To analyse the main ecological drivers of transpiration-related traits and annual tree transpiration.
  4. To investigate the co-variation of water use traits with other (mostly hydraulic) plant functional traits and its role in shaping the drought vulnerability of woody species.

SAPFLUXNET acknowledgements

SAPFLUXNET began as a 3-year project starting in October 2015 at CREAF and funded by the Spanish Ministry of Economy and Competitiveness MINECO (Grant Nº CGL2014-55883-JIN).

How to use SAPFLUXNET data

SAPFLUXNET is available to everyone via Zenodo website.

  • Please acknowledge the use of SAPFLUXNET by citing the SAPFLUXNET data paper or the Zenodo dataset, if the data paper is still unpublished.

  • When a small subset of SAPFLUXNET datasets are used, acknowledgement via citation of original publications presenting individual datasets should be considered.

  • Please use the sapfluxnetr package to access the SAPFLUXNET database, once downloaded.

2020-09-01: sapfluxnetr v0.1.1 R package has been released

Ongoing data syntheses using SAPFLUXNET

Description of ongoing data syntheses and other papers using SAPFLUXNET data.

Leading author Institution Topic/Tentative title Stage
Víctor Flo CREAF Analysis of hydrometeorological drivers of tree transpiration shows a dominant role of vapour pressure deficit across biomes Manuscript in process
David Forrester WSL The symmetry or asymmetry of competition for water Manuscript in process
Víctor Granda JRU CREAF-CTFC Discover, analyse and visualize sap flow data: the sapfluxnetr package Manuscript in process
Rafael Poyatos CREAF Global patterns of tree transpiration Experimental design
Sacha Khoury, David Coomes Cambridge University Ground versus remote estimations of water flow in contrasting forests Experimental design
Diego Miralles Ghent University Testing model-based and satellite-based quantifications of ecosystem transpiration Experimental design
Alison Prior, Colin Prentice Imperial College London Testing carbon-water optimality hypotheses using sap flow data Experimental design
  • The paper in bold is the data paper presenting SAPFLUXNET, where all contributors will be listed as co-authors.

  • The paper in italics corresponds to the paper to be co-authored by all SAPFLUXNET data contributors whose data are used.