Pantropical tropical tree xylem hydraulic functional traits, 1991 - 2013

Author(s): Christoffersen B

Dataset Information

Site ID: XX-PTr

Site Name: Pantropical site

Variables: Leaf phenology; Leaf photosynthetic traits (Vcmax and Jmax); Leaf water potential; Other

Date Range: Jan. 1, 1991 - Dec. 31, 2013

Description: This data package contains xylem hydraulic properties data, both newly extracted from publications plus tropics-specific data extracted from the "Xylem Functional Traits Database" (Choat et al., 2012; Gleason et al., 2016), which is available on TRY ( Choat, B., Jansen, S., et al: Global convergence in the vulnerability of forests to drought, Nature, doi: 10.1038/nature11688, 2012. 2012. Gleason, S. M., Westoby, M., Jansen, S., Choat, B., et al.: Weak tradeoff between xylem safety and xylem-specific hydraulic efficiency across the world's woody plant species, New Phytologist, 209, 123-136, 2016. Measurements include xylem hydraulic conductivity per unit sapwood (Ks) and per unit leaf (Kl) area, water potential at 12%, 50%, and 88% loss of conductivity (P12, P50, and P88, respectively), leaf mass per area, wood density, and maximum rate of photosynthesis. Data span both natural tropical forests and plantations and rainfall gradients from deciduous dry tropical forests to everwet tropical forests, and come from countries all across the pantropics. Data is included in the attached zip file as three CSV files.

QA/QC: None

Methods Description: Please see the referenced publications for data collection methods.

Access Level: Public

Originating Institution(s): Los Alamos National Laboratory

Sponsor Organization(s): European Union Seventh Framework Programme under the project AMAZALERT (Grant Agreement No. 282664 to Patrick Meir), and DOE (BER) NGEE-Tropics project

Contact: Christoffersen, Brad - University of Texas Rio Grande Valley (

Data Download

Version: 1.0

Dataset Citation: Christoffersen B (2021): Pantropical tropical tree xylem hydraulic functional traits, 1991 - 2013. 1.0. NGEE Tropics Data Collection. (dataset).

Acknowledgement: None

Data Link: Download Dataset

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