[1]LIU De-lin,LI Bi-cheng.Distributions of Land Use Types by Slope Category in Shnaghuang Small Watershed on the Loess Plateau, China[J].Research of Soil and Water Conservation,2010,17(05):199-201.
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Research of Soil and Water Conservation[ISSN 1005-3409/CN 61-1272/P] Volume:
17
Number of periods:
2010 05
Page number:
199-201
Column:
Public date:
2010-10-20
- Title:
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Distributions of Land Use Types by Slope Category in Shnaghuang Small Watershed on the Loess Plateau, China
- Author(s):
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LIU De-lin1,2, LI Bi-cheng2
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1. Emergency Management School, He’nan Polytechnic University, Jiaozuo, He’nan 454000, China;
2. Research Center of Soil and Water Conservation and Ecological Environment, Chinese Academy of Sciences and Ministry of Education, Yangling, Shaanxi, 712100, China
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- Keywords:
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Loess Plateau; small watershed; land use; slope category; Shanghuang test area
- CLC:
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F301.24
- DOI:
-
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- Abstract:
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Based on the DEM at 1:10 000 scale and the land use data base from 1982 to 2008, the distribution and change conditions of land use type at different slope category were analyzed by using RS and GIS. The results showed that (1) the land use changed dramatically in the past 30 years in Shanghuang small watershed, where the areas of arable land increased first and then decreased sharply from 2002 to 2008, the areas of woodland increased continuously, and the areas of grassland decreased continuously. (2) Now the distributions of land use area at different slope were more reasonable, which basically reflects the principles of rational allocation of resources. (3) 6.81 hm2 of land in this basin still should be convert to forest land/grassland, but this area accounts for less than 1% of the total area of this basin. Therefore, the task of conversion of cropland to forest land or grassland was basically completed in the Shanghuang small watershed.