Open AccessSoil carbon storage and N{sub 2}O emissions from wheat agroecosystems as affected by free-air CO{sub 2} enrichment (FACE) and nitrogen treatments. Final Report - February 12, 1999
Author(s) -
Steven W. Leavitt,
A. D. Matthias,
Thomas L. Thompson,
R. A. Rauschkolb
Publication year - 1999
Language(s) - English
Resource type - Reports
DOI - 10.2172/765300
Subject(s) - agroecosystem , environmental science , nitrogen , ecosystem , agronomy , growing season , soil carbon , carbon fibers , carbon cycle , phenology , nitrogen cycle , chemistry , soil water , agriculture , ecology , soil science , biology , materials science , composite number , composite material , organic chemistry
Rising atmospheric CO{sub 2} concentrations have prompted concern about response of plants and crops to future elevated CO{sub 2} levels, and particularly the extent to which ecosystems will sequester carbon and thus impact the rate of rise of CO{sub 2} concentrations. Free-air CO{sub 2} enrichment (FACE) experimentation was used with wheat agroecosystems for two growing seasons to assess effects of CO{sub 2} and soil nitrogen. Over 20 researchers on this experiment variously examined plant production and grain yield, phenology, length of growing season, water-use efficiency ecosystem production, below ground processes (eg, root and microbial activity, carbon and nitrogen cycling), etc