Biotic Processes Regulating the Carbon Balance of Desert Ecosystems

Nowak, R. S. ; Arnone, J. ; Fenstermaker, L. ; Smith, and S. D.

University of Nevada

关键词: Plants;    Carbon Dioxide;    Deserts;    Carbon Cycle;    Water;   

DOI  :  10.2172/841879
RP-ID  :  NONE
RP-ID  :  FG03-00ER63049
RP-ID  :  841879

美国|英语

来源: UNT Digital Library

【 摘 要 】

This project provided the funding to operate and maintain the Nevada Desert FACE Facility. This support funds the CO{sub 2}, system repairs and maintenance, basic physical and biological site information, and personnel that are essential for the experiment to continue. They have continued to assess the effects of elevated CO{sub 2} on three key processes: (1) leaf- to plant-level responses of desert vegetation to elevated atmospheric CO{sub 2}; (2) ecosystem-level responses; and (3) integration of plant and ecosystem processes to understand carbon balance of deserts. The focus is the seminal interactions among atmospheric CO{sub 2}, water, and nitrogen that drive desert responses to elevated CO{sub 2} and explicitly address processes that occur across scales (biological, spatial, and temporal).