摘要
AGRICULTURAL soils are the major anthropogenic source of N<sub>2</sub>O, and temperature is one of the importantenvironmental factors controlling production and emission of N<sub>2</sub>O from soil. This work focuses on the influence of temperature on diurnal and seasonal variations of N<sub>2</sub>O flux from subtropical agricultural soil.This was done by seasonal measuring N<sub>2</sub>O flux and soil temperature at a corn-rape rotation, a soybeanwinter wheat rotation and a fallow field （106°66’E, 26°50’N, 1140 m a.s.1.）, at Soil and Fertilizer Institute, Guizhou Academy of Agricultural Sciences. Available nitrogen content of above three fields wasapproximately 0.71%, organic matter content 10.6-12.0 g/kg, clay （【2 μm） content 25.6%-30.0%, and pH was about 7.5 throughout the whole experiment. Measuring period was between 20 Mar.
作者
XU Wenbin~(1,2), HONG Yetang~1, CHEN Xuhui~3, QIN Song~3 and JIANG Taiming~3 1. State Key Laboratory of Environmental Geochemistry, Institute of Geochemistry, Chinese Academy of Sciences, Guiyang 550002, China
2. Institute of Environment and Resources Chemistry, Zhejiang University, Hangzhou 310027, China
3. Soil and Fertilizer Institute, Guizhou Academy of Agricultural Sciences, Guiyang 550013, China
