[1]李阳兵,王世杰,周梦维,等.不同空间尺度下喀斯特石漠化与坡度的关系[J].水土保持研究,2009,16(05):70-72,77.
　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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不同空间尺度下喀斯特石漠化与坡度的关系

《水土保持研究》[ISSN:1005-3409/CN:61-1272/P] 卷: 16 期数: 2009年05期 页码: 70-72,77 栏目: 出版日期: 2009-10-20
Title:
Relationship Between Karst Rocky Desertification Distribution and Slope Under Different Spatial Scales
作者:
李阳兵1,3, 王世杰2, 周梦维2, 程安云2, 李卫海1
1. 贵州师范大学, 地理与环境科学学院, 贵阳 550001;
2. 中国科学院地球化学研究所, 环境地球化学国家重点实验室, 贵阳 550002;
3. 重庆师范大学, 地理科学学院, 重庆 400047
Author(s):
LI Yang-bing1,3, 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
关键词:
石漠化; 坡度; 空间尺度
Keywords:
karst rocky desertification; slope; spatial scale
分类号:
P642.25;X171.1
摘要:
以2005年2月4日1∶1万SPOT5影像（空间分辨率2.5m）为基本数据源，在获取该流域喀斯特各级石漠化分布格局信息的基础上，探讨喀斯特石漠化强度与坡度的空间尺度关系。王家寨小流域石漠化集中分布在15°～25°坡度范围内，簸箩地区轻度、中度、强度集中分布在<5°、15°～25°的坡度范围。而大尺度研究发现石漠化发生率最大的是>25°的坡地，研究尺度越大，则石漠化集中分布的坡度范围也越高。因此，大尺度分析得出的结论不能指导小尺度石漠化土地的防治工作。
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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备注/Memo

收稿日期:2009-3-19;
基金项目:国家重点基础研究发展计划项目（2006CB403200）;教育部“新世纪优秀人才支持计划”（NCET-05-0819）
作者简介:李阳兵(1968-)男，重庆潼南人，博士后，教授，研究方向为土地利用与生态过程。E-mail：li-yabin@gznu.edu.cn

更新日期/Last Update: 1900-01-01