地理学报 ›› 2001, Vol. 56 ›› Issue (6): 657-666.doi: 10.11821/xb200106004

• 论文 • 上一篇    下一篇

黄土丘陵区燕沟流域土地利用变化与优化调控

徐勇1, Roy C.Sidle2   

  1. 1. 中国科学院地理科学与资源研究所,北京100101;
    2. 加拿大不列颠哥伦比亚大学,温哥华 V6T 1N6
  • 收稿日期:2001-06-18 修回日期:2001-09-10 出版日期:2001-11-15 发布日期:2001-11-25
  • 基金资助:
    中国科学院知识创新项目(KZCX1-10-07-04)

Land Use Change and Its Regulation of Yangou Watershed in Loess Hilly-gully Region

XU Yong1, Roy C. Sidle 2   

  1. 1. Institute of Geographic Science and Natural Resources Research, CAS, Beijing 100101, China;
    2. University of British Columbia, Vancouver V6T 1N6, Canada
  • Received:2001-06-18 Revised:2001-09-10 Online:2001-11-15 Published:2001-11-25
  • Supported by:
    Knowledge innovation project of Chinese Academy ofSciences, No. KZCXI一10-07-04

摘要: 采用GIS空间分析技术,分析和概括了1966~2000年期间燕沟流域土地利用变化时空过程及其基本特征:解析了土地利用变化的主要成因;总结了1997年以来土地利用结构优化调控的主要特点:评价了土地利用结构优化调控后的生态环境效益、经济效益及其可持续发展性。籍此希望揭示出黄土匠陵区土地利用变化与优化调控所具有的一些共性特点和规律。

关键词: 土地利用变化, 优化调控, 燕沟流域, 黄土丘陵区

Abstract: Based on the topographic map in 1966, remote sensing image in 1988 and land use survey in 2000, three land use maps were made in Yangou watershed. And assisted by spatial analysis techniques of GJS, the spatial and temporal differentiation of land use change was analyzed in that watershed. As a result, this paper found: (1)Land use change of Yangou watershed could be divided into three phases from 1949 to 2000. The main character of prophase (1949-1988) was that slope land was expansively cultivated and natural forestland was continuously destroyed. The land use structure of the watershed was steady comparatively in 1989 to 1996. The key period of regulating land use structure of the watershed was in 1997 to 2000. Land use structure during the period showed sharp changes along with the reduction of vast farmland, a speedy increase in orchard and got-up grassland and a increase in open woodland. (2)During 1997 to 2000, the important measures of regulating land use structure of the watershed included formulating the operating rules, drafting the practicable plan, regulating the land use structure based on the topographic slopes, selecting and fostering rural industries and playing the rational roles of administrators, researchers and farmers. (3)The benefit analysis of soil & water conservation and rural economic development based on the land use scenario in 2000 indicated that the percentage of reduction sediment was 80%, that of permanent vegetation cover was 78.48%, per capita GDP was 1541 yuan(RMB) in 2000 and 4311 yuan in 2010. Its rural economic development was verified to be sustainable by predicting the changes of per capita basic farmland, orchard area and sheep in 2040.

Key words: land use change, regulation, Yangou watershed, the hilly-gully region of Loess Plateau

中图分类号: 

  • F321