农业工程学报2003，Vol.19Issue(5)：31-35,5.
土壤基质吸力与土壤微生物活性关系的研究
Experimental study on relationship between matric suction and soil microbial activity
摘要
Abstract
The relationship between activity of soil microorganisms and soil matric suction was studied. The concept of bubbling suction, which is the soil matric suction at which air permeability of soils becomes non-zero, was applied. The objective of this experiment was to test the hypothesis that highest microbial activity in soil occurs when soil matric suction is slightly larger than the bubbling suction because both water and oxygen are abundant. In all the three soils tested, the highest microbial respiration was observed at soil matric suctions just larger than the bubbling suction. The microbial activity at small matric suction reached the highest value slower than that around bubbling suction.关键词
土壤微生物活性/土壤基模吸力/土壤发泡点Key words
soil microbial activity/soil matric suction/soil bubbling pressure分类
农业科技引用本文复制引用
薛绪掌,Pete Stahl,张仁铎,孙治贵..土壤基质吸力与土壤微生物活性关系的研究[J].农业工程学报,2003,19(5):31-35,5.基金项目
National Natural Science Foundation of China (E090703), Beijing New Scientist Cultivation Project (H020821340130) （E090703）
