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[1]LI Yang-bing,WANG Shi-jie,ZHOU Meng-wei,et al.Relationship Between Karst Rocky Desertification Distribution and Slope Under Different Spatial Scales[J].Research of Soil and Water Conservation,2009,16(05):70-72,77.

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Relationship Between Karst Rocky Desertification Distribution and Slope Under Different Spatial Scales

Research of Soil and Water Conservation[ISSN 1005-3409/CN 61-1272/P] Volume: 16 Number of periods: 2009 05 Page number: 70-72,77 Column: Public date: 2009-10-20

Title:: Relationship Between Karst Rocky Desertification Distribution and Slope Under Different Spatial Scales

Author(s):: LI Yang-bing^1,3, WANG Shi-jie², ZHOU Meng-wei², CHENG An-yun², LI Wei-hai¹; 1. School of Geography and Environment Science, Guizhou Normal University, Guiyang 550001, China;
2. National Key Laboratory of Environmental Geochemistry, Geochemistry Institute of Chinese Academy of Science, Guiyang 550002, China;
3. College of Geography Science, Chongqing Normal University, Chongqing 400047, China

Keywords:: karst rocky desertification; slope; spatial scale

CLC:: P642.25;X171.1

DOI:: -

Abstract:: Based on the image of SPOT5 in 2005,karst rocky desertification landscape patterns in Boluo area was classified as: no,latent,slight,moderate,strong,and extremely strong karst rocky desertification types.Furthermore,this paper discussed the relationship between karst rocky desertification and slope.The results show that: the karst rocky desertification land gathered in the slope range of 15° to 25° in Wangjiazhai catchments,and located in areas with slope <5° or 15°～25°.But the occurrence ratio of karst rocky desertification of areas with slope >25° is the biggest in larger spatial scales.The slope range of areas which karst rocky desertification located increases with the spatial scale-up.So,the conclusions derived from macro-scale studies should not apply to the comprehensive melioration the karst rocky desertification in small spatial scales.

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