Biotic Processes Regulating the Carbon Balance of Desert Ecosystems - Final Report

Nowak, Robert S¹  Smith, Stanley D²  Evans, Dave³  Ogle, Kiona⁴  Fenstermaker, Lynn⁵ 

[1] UNR;UNLV;WSU;ASU;DRI

关键词: Biotic;    carbon balance;    desert ecosystem;   

DOI  :  10.2172/1109125
RP-ID  :  DOE30BONSHE
PID  :  OSTI ID: 1109125

学科分类：环境科学（综合）

美国|英语

来源: SciTech Connect

【 摘 要 】

Our results from the 10-year elevated atmospheric CO{sub 2} concentration study at the Nevada Desert FACE (Free-air CO{sub 2} Enrichment) Facility (NDFF) indicate that the Mojave Desert is a dynamic ecosystem with the capacity to respond quickly to environmental changes. The Mojave Desert ecosystem is accumulating carbon (C), and over the 10-year experiment, C accumulation was significantly greater under elevated [CO{sub 2}] than under ambient, despite great fluctuations in C inputs from year to year and even apparent reversals in which [CO{sub 2}] treatment had greater C accumulations.