Changes of Withered Leaves and Soil Carbon and Nitrogen in Different Forest Types in Xishuangbanna
Based on the analysis of the carbon (C) and nitrogen (N) content and C/N of soil and withered leaves in different forest types (e.g.virgin forest,secondary forest,rubber plantation),Xishuangbanna,the distribution characters of stoichiometric ratio in biogeocenose were discussed.The results showed that the effect of N on C/N was higher than that of C.The type of land use was predetermined the C and N content of soil and withered leaves,and the content of soil organic carbon (SOC) was the highest in virgin forest,but the lowest in the rubber plantation (10 years).However,the content of total nitrogen was higher than virgin and secondary forest generally,and the content of N in rubber plantationwas a corresponding increase in rubber ages and tapping.It had significant difference between SOC and STN of soil and C/N of litter in different forest types,and vise versa in C/N of soil and the content of C and N of rubber plantation.The negative correlation,which between SOC,STN and the content of C and N of withered leaves,showed that the C and N of soil were mainly come from the nutrient recycling process.
Different forest typesSoilLitterNitrogen lossCorrelationEcological stoichiometry
国家科技期刊平台
NSTL
万方数据
维普
