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中国沙漠 ›› 2005, Vol. 25 ›› Issue (5): 682-688.

• 研究论文 • 上一篇    下一篇

从石羊河流域沙漠化土地分布看区域协调发展

薛娴1,2, 王涛1, 姚正毅1, 彭国川3   

  1. 1. 中国科学院寒区旱区环境与工程研究所沙漠与沙漠化重点实验室, 甘肃兰州 730000;
    2. 兰州大学资源与环境学院, 甘肃兰州 730000;
    3. 兰州大学经济学院, 甘肃兰州 730000
  • 收稿日期:2004-06-16 修回日期:2004-07-23 出版日期:2005-10-20 发布日期:2005-10-20
  • 作者简介:薛娴(1973-),女(汉族),山西省河津市人,博士,副研究员,主要从事沙漠与沙漠化研究。E-mail:xianxu@lzb.ac.cn
  • 基金资助:
    国家重点基础研究项目(GT2000048705)基金资助

Sandy Desertification Status and Region Development in Shiyanghe River Basin

XUE Xian1,2, WANG Tao1, YAO Zheng-yi1, PENG Guo-chuan3   

  1. 1. Key Laboratory of Desert and Desertification, Cold and Arid Regions Environmental and Engineering Research Institute, Chinese Academy of Sciences, Lanzhou 730000, China;
    2. Department of Resources and Environment of Lanzhou University, Lanzhou 730000, China;
    3. Department of Economy of Lanzhou University, Lanzhou 730000, China
  • Received:2004-06-16 Revised:2004-07-23 Online:2005-10-20 Published:2005-10-20

摘要: 石羊河流域沙漠化状况的遥感监测和野外调查表明:(1)2000年石羊河流域中、下游沙漠化土地总面积7711.91km2,沙漠化类型主要表现为耕地沙漠化、草地沙漠化和沙丘活化、流沙入侵,其中下游以沙丘活化和流沙入侵为主,中游以耕地沙漠化为主;(2)下游民勤地区已经发展到了沙漠化过程中的顶级状态,中游地区沙漠化土地则多处于正在发展的过程中。通过对研究区沙漠化土地分布状况的分析,初步得出结论:由区域经济发展不平衡而导致的区域间不合理的资源分配是下游地区沙漠化的根本原因,而中游地区的环境退化又是下游地区沙漠化的必然结果。

关键词: 石羊河流域, 沙漠化土地, 区域经济发展, 资源分配

Abstract: Based on TM image data and using remote sensing method we systematically monitored the desertification land status of the Shiyanghe River basin in 2000, and has also in situ investigated into its status. The following results have obtained: (1) The total area of sandy desertification land is 7 711.91 square kilometers. Farmland desertification, steppe desertification and fixed dunes activation and drifting sand intruding are the main sandy desertification types in the study area. In details, dune activation is the main type in lower reach and farmland sandy desertification is the main type in middle reach.(2) Most of the sandy desertification land in the lower reach developed into the process of very severe sandy desertification and most of the sandy desertification land in the middle reach into the process of latent and light sandy desertification.From the sandy desertification status, we concluded that the irrationally resource distributing among the different river reaches resulting from the unbalance economy development is the fundamental cause of desertification in the lower reach, and desertification of the lower reach will necessarily result in the environmental degradation of the middle reach.

Key words: Shiyanghe River basin, desertification land, regional economy development, resource allocation

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