Karst rocky desertification in southwestern China: geomorphology, landuse, impact and rehabilitation

Land Degradation and Development - Tập 15 Số 2 - Trang 115-121 - 2004
Shoujun Wang1, Quan-Zhen Liu1, Duomi Zhang2
1The State Key Laboratory of Environmental Geochemistry, Institute Of Geochemistry, Chinese Academy of Sciences, Guizhou 550002, China
2Faculty of Architecture, Civil Engineering and Environment, Ningbo University, Zhejiang 315211, China

Tóm tắt

AbstractKarst rocky desertification is a process of land degradation involving serious soil erosion, extensive exposure of basement rocks, drastic decrease in soil productivity, and the appearance of a desert‐like landscape. It is caused by irrational, intensive land use on a fragile karst geo‐ecological environment. The process is expanding rapidly, and it is daily reducing the living space of residents and is the root of disasters and poverty in the karst areas of southwestern China. The tectonic, geomorphic and environmental background to karst rocky desertification is analysed. Population pressure and the intensive land use that have led to this serious land degradation are described. Although the problem concerns the Chinese Government and some profitable experience in the partial restoration or reconstruction of the ecological environment has been gained, effective remedial action has not been achieved on a large scale. Copyright © 2004 John Wiley & Sons, Ltd.

Từ khóa


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Land Degradation and Development

Tập 15 Số 2

115-121

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