农业环境科学学报2011，Vol.30Issue(12)：2503-2510,8.
模拟酸雨对冬小麦-大豆轮作农田土壤呼吸、硝化和反硝化作用的影响
Effects of Simulated Acid Rain on Soil Respiration, Nitrification and Denitrification in a Winter WheatSoybean Rotation Cropland
摘要
Abstract
μmol·m-2·s-1 for A1, A2, A3 and A4 treatments, respectively. All rates of soil CO2 production, nitrification and denitrification were not significanT1y (P>0.05) different among the Al, A3 and A4 treatments during the winter wheat growth season. However, in the soybean growth season, intensive acid rain significanT1y(P<0.05 inhibited soil CO2 production rates. Mean nitrification rates in the soybean planted cropland were( 191.6±36.1 ),(261.6±36.3) μg·kg-1·h-1 and (255.2±45.1) μg· Kg-1 · H-1 for the Al, A3 and A4 treatments, respectively, while mean denitrification rates were (172.8±19.8),(216.0±45.7 μg· Kg-1 · H-1 and (216.3±44.6)μg· Kg-1 · H-1, for the 3 treatments, respectively. It could be concluded that simulated acid rain had no significanT1y effects on all of the rates of soil respiration, CO2 production, nitrification and denitrificantion in the winter wheat growth season. During the soybean growth season, intensive acid rain significanT1y inhibited soil respiration and CO2 production rates, and leaded to the increase of nitrification and denitrification.关键词
模拟酸雨/土壤呼吸/硝化作用/反硝化作用/农田Key words
simulated acid rain/ soil respiration/ nitrification/ denitrification/ cropland分类
资源环境引用本文复制引用
史艳姝,陈书涛,胡正华,沈小帅,张勇..模拟酸雨对冬小麦-大豆轮作农田土壤呼吸、硝化和反硝化作用的影响[J].农业环境科学学报,2011,30(12):2503-2510,8.基金项目
国家自然科学基金(41005088) （41005088）
江苏省高校自然科学研究计划项目(10KJB610006) （10KJB610006）
中国博士后基金特别资助项目(201003597) （201003597）
国家重点实验室开放课题(LAPC-KF-2010) （LAPC-KF-2010）
