农业工程学报2012，Vol.28Issue(4)：227-234,8.DOI:10.3969/j.issn.1002-6819.2012.04.038
三峡库区开县蓄水前后景观格局变化特征
Changes of landscape pattern and its characteristics in Kaixian county before and after impoundment of Three Gorges Dam Project
摘要
Abstract
The Three Gorges Project is a remarkable large-scale hydropower and water resources in the world. The project will bring great comprehensive benefits after the completion. However, as the reservoir storage completing, it also caused land .cover and landscape pattern changes in this area. In order to grasp the changes of land cover and landscape pattern after the reservoir water storage, Kaixian county of Chongqing city in Three Gorges reservoir area was taken as the research object in this paper. Based on 2002, 2007 and 2010's three remote sensing image data, and using remote sensing, GIS and landscape pattern analysis techniques, the dynamic changes of land cover and landscape pattern was analyzed with the professional software such as ArcGIS9.3, Ecognition8.0 and Fragstats3.3. The results showed that Kaixian's land cover and landscape pattern changed dramatically due to the effects of reservoir storage during 2002 to 2010. The dominant types of landscape in the region were forest, bush, dry land, grassland and paddy field. On the Class Level, the area of dry land, paddy fields and grassland had decreased, and landscape had increased. While the area of forest, water, construction land had increased, and the fragmentation of the connectivity increased too. On the Landscape Level, the landscape fragmentation had increased, and landscape dominance had decreased, but the landscape diversity had increased, which was beneficial to stability of the ecosystem in the region. It showed that different characteristics of Kaixian's landscape pattern changed during 2002-2007 and 2007-2010. The results timely respond the character of land cover and landscape pattern's changes before and after impoundment. This paper provides the basis for land use of the reservoir planning and ecological landscape design.关键词
遥感/土地利用/库区/景观格局/土地覆被/时空变化/三峡库区Key words
remote sensing/ land use/ reservoirs/ landscape pattern/ land cover/ temporal and spatial variation/ Three Gorges reservoir area分类
信息技术与安全科学引用本文复制引用
崔晓伟,张磊,朱亮,宋戈,吴炳方..三峡库区开县蓄水前后景观格局变化特征[J].农业工程学报,2012,28(4):227-234,8.基金项目
中国科学院碳专项-陆地生态系统固碳参量遥感监测及估算技术研究课题(XDA05050109)和国务院三峡办生态环境遥感监测重点站(2010-010)联合资助 （XDA05050109）
