Research on Control Way for Cultivated Land in Karst Rocky Desertification Basin——A case in Shiqiao Basin, Bijie City and Mugong Basin, Guanling City in Guizhou Province
详细信息
- 责任者：Zhou Wei (Institute of South China Karst ; Guizhou Normal University ; Guiyang 550001 ; China) ; Xiong Kangning
- 刊名：Carsologica Sinica
- 出版年：2010
- 卷期：29(4)
- 关键词：耕地 ; cultivated land ; 石漠化 ; rock desertification ; 贵州 ; Guizhou Province
- 页码：p.419-424
- 图表：2 illus., 4 tables, 12 refs.
- 分类号：1800
- issnNo：ISSN1001-4810
- isbnNo：CN45-1157/P
摘要
Through forecasting the increase trend of the population and using the human-land balance model, the necessary farmlands for these two basins have been counted as 281.91 hm2 and 228.68 hm2, However, the area of necessary farmland is larger than non-desertification farmland, which leads to rocky desertification still appear in the farmland. As a result, rocky desertification has been controlled and soil erosion modulus of the two basins has decreased from 721.63 t/(km2·a) and 42.42 t/(km2·a) in 2007 to 472.78 t/(km2·a) and 35.59 t/km2·a) in 2009, vegetation covered lands have increased by 11.3% and 6.4%, per capital income has increased by 300 Yuan and 231 Yuan.
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