摘要
测定了贵州喀斯特地区土壤表层CO2 释放通量 ,同时还测定了土壤微生物生物量碳以及土壤可溶性有机质含量和土壤湿度。研究表明 ,贵州喀斯特地区全年土壤表层CO2 释放通量与温度变化呈正相关关系 ,与土壤微生物生物量碳呈负相关关系 ;当温度 >2 0℃时 ,土壤表层CO2 释放通量与土壤湿度呈正相关 。
Soil surface CO\-2 flux was measured in Karst area in Guiyang,South Western China.Other soil parameters such as soil microbial biomass carbon,soil soluble organic carbon,and soil moisture were determined at the same time.Results revealed significant positive correlations between soil surface CO\-2 flux and soil temperature,as well as significant negative correlations with soil microbial biomass carbon.Soil surface CO\-2 flux is positively correlated with soil moisture and negatively correlated with soil soluble organic carbon,respectively.
出处
《生态学杂志》
CAS
CSCD
北大核心
2003年第2期12-15,共4页
Chinese Journal of Ecology
基金
国家自然科学基金 (4 0 0 72 10 0 )
国家自然科学基金重点资助项目(4 0 2 3 10 0 7)
