地理科学 ›› 2010, Vol. 30 ›› Issue (3): 415-420.doi: 10.13249/j.cnki.sgs.2010.03.415

• 论文 • 上一篇    下一篇

三江源自然保护区土地覆被变化特征分析

赵志平1,2, 刘纪远1, 邵全琴1   

  1. 1. 中国科学院地理科学与资源研究所, 北京 100101;
    2. 中国科学院研究生院, 北京 100039
  • 收稿日期:2009-08-27 修回日期:2009-11-05 出版日期:2010-05-20 发布日期:2010-05-20
  • 通讯作者: 邵全琴,女,研究员,博士生导师,研究方向为GIS应用与生态信息。E-mail:shaoqq@lreis.ac.cn E-mail:邵全琴, shaoqq@lreis.ac.cn
  • 基金资助:
    国家重点基础研究发展计划项目(973计划-2009CB421105)、国家科技支撑计划(2006BAC08B00)、中国科学院西部行动计划项目(KZCX2-XB2-06-03)资助。

Characteristic Analysis of Land Cover Change in Nature Reserve of Three River’s Source Regions

ZHAO Zhi-ping1,2, LIU Ji-yuan1, SHAO Quan-qin1   

  1. 1. Institute of Geographic Sciences and Natural Resources Research, Chinese Academy of Sciences, Beijing 100101;
    2. Graduate University of the Chinese Academy of Sciences, Beijing 100049
  • Received:2009-08-27 Revised:2009-11-05 Online:2010-05-20 Published:2010-05-20

摘要: 基于中国土地利用/覆被遥感分类系统,利用1970年代中后期、1980年代末、2004年和2008年4期遥感图像分析三江源自然保护区近30a来土地覆被类型面积变化、转类途径与幅度及各保护区各圈层转类指数变化特征,结果表明:近30a来,草地总面积经历了一个增加-减少-增加的过程。自然保护区1970年代中后期至1980年代末和1980年代末至2004年土地覆被类型变化主要是草地覆盖度下降,土地覆被总体上具有转差趋势。近4a来草地退化趋势得到遏制,大部分的保护区和内部各圈层土地覆被都有转好趋势,可能与《规划》实施有关。

Abstract: Based on remote sensing classification system of China land use/cover change, we used four phases Landsat remote sensing images of middle and late 1970s, late 1980s, 2004 and 2008 for the process analysis of nature reserve land cover change in Three River’s Source Regions during the recent 30 years. The results showed that in total, grassland area experienced a process of increase-decrease-increase during the recent 30 year. From middle and late 1970s to 2004, decline of grassland coverage was the main appearance of land cover change, and land cover status had a deterioration trend. During the recent 4 years, grassland deteriorated trend alleviated. All zones had ameliorated trend of land cover change and core and buffer zones were more significant than experimental zone, which may related with the implementation of Planning.

中图分类号: 

  • S127