Spatial pattern of karst rock desertification in the middle of Guizhou   province, southwestern China

doi:10.1007/s00254-006-0572-y

CORC > 北京大学 > 城市与环境学院

	Spatial pattern of karst rock desertification in the middle of Guizhou province, southwestern China
	Huang, Qiu-Hao ; Cai, Yun-Long
刊名	工程地质学
	2007
关键词	land degradation Karst rocky desertification temporal-spatial pattern The Southwestern China MODEL
DOI	10.1007/s00254-006-0572-y
英文摘要	Karst rocky desertification is a typical type of land degradation in the Southwestern China. It has great ecological and economical implications for the local people. Landsat images from the middle of Guizhou Province collected in 1974, 1993 and 2001 were used for change detection of the pattern of Karst rocky desertification. The results show the following findings: (1) Desertification area expanded drastically in 27 years, at an increasing rate about 116.2 km(2)/year. (2) High areas (900-1,500 m) are the most affected. (3) Areas with the slope < 5 degrees or > 25 degrees are also easily tend to be Karst rocky deserted. (4) The process of Karst rocky desertification is nearly irreversible. Few areas of Karst rocky desertification could be meliorated to non-desertification land. (5) Most of the degraded lands are located in the south and the central of the study region, and the meliorated land areas are sparsely located in the east and the west part of the region. All these findings would provide bases for the decision-making of the local government to improve the Karst rocky desertification.; Environmental Sciences; Geosciences, Multidisciplinary; Water Resources; SCI(E); EI; 22; ARTICLE; 7; 1325-1330; 52
语种	英语
内容类型	期刊论文
源URL	[http://ir.pku.edu.cn/handle/20.500.11897/250176]
专题	城市与环境学院
推荐引用方式 GB/T 7714	Huang, Qiu-Hao,Cai, Yun-Long. Spatial pattern of karst rock desertification in the middle of Guizhou province, southwestern China[J]. 工程地质学,2007.
APA	Huang, Qiu-Hao,&Cai, Yun-Long.(2007).Spatial pattern of karst rock desertification in the middle of Guizhou province, southwestern China.工程地质学.
MLA	Huang, Qiu-Hao,et al."Spatial pattern of karst rock desertification in the middle of Guizhou province, southwestern China".工程地质学 (2007).