南京大学学报：自然科学版2012，Vol.48Issue(6)：761-767,7.
温湿度对土壤CO2释放影响的试验研究
Experimental study on the influence of temperature and moisture on soil CO2 release
摘要
Abstract
In this research,laboratory tests on two type of soil total organic carbon of which is 1.03% and 3.95% respectively from Nanjing,China have been carried out to study the influence of temperature, moisture and organic matter content on soil CO2 release rate. The result shows that:CO2 release rate of the specimens increases with tem- peratvre in the range of 10 ℃-42 ℃ while an optimal temperature is not observed. Meanwhile, soil respiration is significantly influenced by soil moisture as is limited both by low and high soil moisture content and the optimal moisture content range is 18% - 30%;and the CO2 release rate of the specimens increase significantly when the organic matter content increases. At last, the mechanism of influence of temperature, moisture and soil organic matter content on soil CO2 release is also discussed. The research result is significant in understanding the mechanism of soil CO2 release and studying global carbon cycle process.关键词
CO2/土壤/释放/有机质/温度/含水率Key words
CO2/soil/release/soil organic matter/temperature/moisture分类
农业科技引用本文复制引用
沈征涛,王宝军,施斌,姜洪涛,高磊,周春慧..温湿度对土壤CO2释放影响的试验研究[J].南京大学学报：自然科学版,2012,48(6):761-767,7.基金项目
国家自然科学基金 （）
