Precipitation mediates sap flux sensitivity to evaporate demand in the neotropics, Oecologia: Dataset

Dataset · Tue Jan 01 00:00:00 EST 2019

DOI:https://doi.org/10.15486/ngt/1568822· OSTI ID:1568822

Grossiord, Charlotte ^[1]; Christoffersen, Brad ^[1]; Alonso-Rodríguez, Aura; Anderson-Teixeira, Kristina; Asbjornsen, Heidi ^[2]; T. Aparecido, Luiza Maria; Berry, Carter ^[2]; Bonal, Damien ^[3]; Borrego, Isaac ^[1]; Burban, Benoit; Chambers, Jeff ^[4]; Christianson, Danielle ^[5]; Detto, Matteo ^[6]; Faybishenko, Boris ^[4]; Fontes, Clarissa ^[7]; Fortunel, Claire; Gimenez, Bruno ^[8]; Jardine, Kolby ^[4]; Kueppers, Lara ^[4]; Miller, Gretchen ^[9] ; Moore, Georgianne ^[9]; Negron-Juarez, Robinson ^[4]; Stahl, Clement; Swenson, Nathan; Timm, Collin; Trotsiuk, Volodymyr; Varadharajan, Charuleka ^[4]; Warren, Jeffrey ^[10]; Wolfe, Brett ^[11]; Wei, Liang; Wood, Tana

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1. Los Alamos National Lab
2. University of New Hampshire
3. INRA (France)
4. LBNL
5. Berkeley Lab
6. Princeton
7. UC Berkeley
8. National Inst of Amazon Research (INPA)
9. Texas A&M University
10. ORNL
11. Smithsonian

Using measurements in 34 tree species at seven sites across a precipitation gradient in the neotropics, we determined how the maximum sap flux velocity (vmax) and the VPD threshold at which vmax is reached (VPDmax) vary with precipitation regime (long-term annual precipitation, MAP; seasonal drought intensity, PDRY) and two functional traits related to foliar and wood economics spectra (leaf mass per area, LMA; wood specific gravity, WSG). This study demonstrates that long-term precipitation plays an important role in the sapflux response of humid tropical forests to VPD.

• Research Organization: Next-Generation Ecosystem Experiments Tropics; LANL, LBNL, STRI, ORNL, Texas A&M, add collaborating institutions
• Sponsoring Organization: DOE BER
• OSTI ID: 1568822
• Report Number(s): NGT0099
• Country of Publication: United States
• Language: English

Related Subjects

54 ENVIRONMENTAL SCIENCES