Soil Ecosystem Degradation of Karst Regions in Southwestern China

Deeply influenced by karst geological environment, the structure of the soil ecosystem in the southwest karst area of China is characterized by strong vertical variation and space variation, structural feature of nonrenewable soil, and functional feature of poor circulation of nutrient elements and...

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Bibliographic Details
Published inAsian Agricultural Research Vol. 4; no. 9; pp. 60 - 63
Main Authors Xie, Shi-you, Wang, Ju
Format Journal Article
LanguageEnglish
Published 01.09.2012
Edition1812
Subjects
Agribusiness
Karst regions in southwestern China
Soil ecosystem
Unbalance of material cycle
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Summary:Deeply influenced by karst geological environment, the structure of the soil ecosystem in the southwest karst area of China is characterized by strong vertical variation and space variation, structural feature of nonrenewable soil, and functional feature of poor circulation of nutrient elements and limited vegetation growth. On the basis of analyzing vulnerability in structure and function of soil ecosystem in China’s southwestern karst regions, we discussed the degradation process and mechanism of soil structure, nutrient, water and microorganism in the course of soil erosion from the perspective of material and energy cycle. Finally, we put forward some recommendations for recovery of degraded soil, transformation and rational utilization of soil.
DOI:10.22004/ag.econ.142317