陕西省长武县土地利用变化的生态环境效应评价  

Eco-environmental effects of land use change in Changwu County of Shannxi Province

作　　者：边亮[1,2] 胡志斌[1] 宋伟东[2] 

机构地区：[1]中国科学院沈阳应用生态研究所,沈阳110016 [2]辽宁工程技术大学测绘与地理科学学院,辽宁阜新123000

出　　处：《生态学杂志》2009年第9期1743-1748,共6页Chinese Journal of Ecology

基　　金：中国科学院知识创新工程重大项目(KZCX1-YW-08-02);国家自然科学基金项目资助(40701185)

摘　　要：通过对1988年9月15日的TM遥感影像、2000年5月19日的ETM遥感影像和2006年7月7日的ETM遥感影像解译,获取了长武县的土地利用图,根据中国陆地生态系统单位面积生态服务价值,求算出长武县的生态系统服务价值。结果表明:30年来,长武县的耕地面积随着"退耕还林"工程的推进有显著下降,林地面积则随着三北防护林建设工程的实施显著增加,未利用土地、水域和草地面积变化不大;长武县总体生态系统服务价值总量在逐年递增,从1988年的5.67×108元上升到2006年的5.72×108元,生态系统总体向健康方向发展。Through the interpretation of the remote sensing images of September 15th, 1988,May 19th, 2000 and June 7th, 2006, the land use and land cover change in Changwu County of Shaanxi Province were acquired, and based on the terrestrial ecosystem service value per unit area in China, the total ecosystem service value in the County was calculated. In the recent 30years, the farmland area in the County decreased markedly with the development of the t;onversion of Farmland to Forest Project, while the forestland area increased with the implementation of the Three-North Shelter Forest Program. Meanwhile, the unused land, water area, and grassland had no obvious change. The total ecosystem service value increased year by year, from 5.67 ×10^8 yuan in 1988 to 5.72 × 10^8 yuan in 2006, and the ecosystems in the County tended to develop healthily.

关 键 词：土地利用/覆盖变化 遥感 生态系统服务价值 敏感度指数 

分 类 号：S181[农业科学—农业基础科学]