地理科学 ›› 2011, Vol. 31 ›› Issue (10): 1280-1285.doi: 10.13249/j.cnki.sgs.2011.010.1280

• 论文 • 上一篇    

武汉市土地利用覆被变化与生态环境效应研究

张杨1,2, 刘艳芳1,2, 顾渐萍1,3, 丁庆1,2   

  1. 1. 武汉大学资源与环境科学学院, 湖北 武汉 430079;
    2. 武汉大学地理信息系统教育部重点实验室, 湖北 武汉 430079;
    3. 东京大学前沿科学学院, 千叶柏市, 日本 277-8563
  • 收稿日期:2010-10-21 修回日期:2011-03-25 出版日期:1997-10-20 发布日期:1997-10-20
  • 通讯作者: 刘艳芳
  • 基金资助:
    国家973基金支持项目(2006CB701303)、国家863基金支持项目(2009AA122001)、武汉大学博士研究生自主科研项目(2010205010100050)资助。

Land Use/Land Cover Change and Its Environmental Effects in Wuhan City

ZHANG Yang1,2, LIU Yan-Fang1,2, GU Jian-Ping1,3, DING Qing1,2   

  1. 1. School of Resource and Environmental Science, Wuhan University, Wuhan, Hubei 430079, China;
    2. Key Laboratory of Geographic Information System, Wuhan University, Wuhan, Hubei 430079, China;
    3. School of Frontier Science, University of Tokyo, Kashiwa, Chiba, Japan 277-8563
  • Received:2010-10-21 Revised:2011-03-25 Online:1997-10-20 Published:1997-10-20

摘要: 利用1996年和2006年两期TM遥感影像解译图获取武汉市土地利用变化数据。基于GIS空间分析与数理统计方法对1996~2006年武汉市土地利用/覆被变化特征进行了定量分析。运用区域生态环境质量指数和区域土地利用变化类型生态贡献率,对研究时段内武汉市土地利用变化的生态环境效应以及导致武汉市生态环境质量变化的土地利用变化类型进行了分析与评价。研究结果表明:① 1996~2006年期间武汉市土地利用变化主要表现为耕地、草地和未利用土地的减少,林地、建设用地和水域面积的增加的态势。② 1996年~2006年武汉市的区域生态环境质量指数从0.451 上升至0.468。生态环境在一定程度上维持着相对平衡,并呈现出一种上升趋势。但生态环境改善和恶化的两种趋势并存。③ 局部地区生态环境呈负向发展,其中城市化引起的空间扩张对区域土地利用/覆被变化产生影响最为深刻。

Abstract: As land use/cover change (LUCC) has been recognized as a key element of global environmental change, it draws increasing attention of researchers concerned with environmental and socio-economic well-being. Land use/cover is an important process which is widespread and accelerating. However, traditional analysis of LUCC is not sufficient to provide systematic signals of ecological environment change caused by LUCC. This paper analyzes the details of the matrix to compute the quantity, allocation, and dominant signals of land use/cover (LUCC), based on which the eco-environmental quality is evaluated. With the interpretation results of the Landsat TM 5 image of Wuhan City in 1996 and 2006, this study applies statistical and GIS analysis to the land use/cover change in Wuhan City. The effects of land use transformation has on the change of eco-environmental quality are assessed by calculating the regional eco-environmental indices and the contribution proportions of land use transformation types. The results show that: 1) The area of cropland, grassland and unused land decreased while the area of forest, water and construction land increased in Wuhan city from 1996 to 2006. 2) The regional eco-environmental quality index increased from 0.451 in 1996 to 0.468 in 2006. The overall quality of regional eco-environment has maintained relatively stable with a rising trend. However, the trends of both improvement and degradation in eco-environment coexisted. 3) It should also be noted that the local ecological environment presents a negative evolution, and the urbanization could be the most profound factor to influence the regional land use/cover change.

中图分类号: 

  • F301.24