摘要
根据作物冠层内碳循环和ＣＯ２源、汇及流的关系，利用大田试验结果，分析农田土壤ＣＯ２释放引起作物冠层内ＣＯ２浓度的垂直梯度变化，以及环境温度、湿度及作物根系呼吸等因子对ＣＯ２释放量的影响。
On base of the relation between the element carbon circle and the sourse, sink, flow of the carbon dioxide,using the results of trial in the field,analyses the variation of CO2 concentration in the canopy causing by the CO2 releasing from the soil, and also analyses the effect of environmental temperature, humidity and plant root respiration on the quantity of CO2 releasing from soil.
出处
《水土保持研究》
CSCD
1996年第3期100-103,共4页
Research of Soil and Water Conservation
基金
国家自然科学基金
关键词
农田土壤
梯度变化
环境因子
二氧化碳
soil in field
CO_2 releasing
variable gradient
enviroment factor
