img

官方微信

高级检索

中国沙漠 ›› 2005, Vol. 25 ›› Issue (3): 320-328.

• 研究论文 • 上一篇    下一篇

中国北方农牧交错区沙漠化发展过程及其成因分析

薛娴1,2, 王涛1, 吴薇3, 孙庆伟1, 赵存玉1   

  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. 中国科学院青藏高原研究所, 北京 100029
  • 收稿日期:2004-12-10 修回日期:2004-12-15 出版日期:2005-06-20 发布日期:2005-06-20
  • 作者简介:薛娴(1973-),女(汉族),博士,副研究员,主要从事沙漠与沙漠化方面的研究。E-mail:xianxue@ns.lzb.ac.cn
  • 基金资助:
    国家重点基础研究发展规划"中国北方沙漠化过程及其防治研究"项目(G2000048705);国家科技攻关计划子课题"中国沙漠化态势和对社会经济发展影响的分析"项目(2004BA608B-03-02)共同资助

Desertification Development and Its Causes of Agro-pastoral Mixed Regions in North China

XUE Xian1,2, WANG Tao1, WU Wei3, SUN Qing-wei1, ZHAO Cun-yu1   

  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. School of Resources and Environment, Lanzhou University, Lanzhou 730000, China;
    3. Institute of Qinghai-Tibet Plateau Research, Beijing 100029, China
  • Received:2004-12-10 Revised:2004-12-15 Online:2005-06-20 Published:2005-06-20

摘要: 通过历史文献记载、遥感监测和野外调查等手段,研究了中国北方农牧交错区历史时期以来的沙漠化发展过程,认为在晚全新世气候干湿波动的背景上,研究区的沙漠化状况在20世纪80年代以前以发展为主,而在之后的近20a里则出现逆转。对研究区近50a来的气候及土地利用方式变化的分析表明,气候因素中降水的多变性是研究区土地沙漠化发生的自然背景,而滞后于气候变化的土地利用方式改变则是研究区沙漠化最主要的成因。

关键词: 沙漠化, 成因, 农牧交错区, 中国北方

Abstract: According to data from historic records, remote sensing monitoring and field surveys, this paper introduces the development process of sandy desertification in agro-pastoral mixed regions in North China during late (3 000) years. From these data, the desertification has developed based on the fluctuating humidity before 1980s and reverse after 1980s in study area. The results from analysis on climate and land use change in late 50 years show that changefully precipitation is the main natural background that desertification occurs and develops, and land use change lagging climate change is the main cause of desertification. In study area, the development and reverse of desertification are closely correlated with the climate and land use change.

Key words: desertification, causes, agro-pastoral mixed region, North China

中图分类号: