摘要
准确地从遥感影像通过分类方法获取土地覆盖信息是一项基础性的重要课题。在建立土地覆盖分类体系的基础上,对株洲市1999年、2003年和2007年3个时相CBERS星CCD数据进行监督分类,提取土地覆盖信息,并分析其动态变化过程。结果表明:在我国中部丘陵地区,利用多时相CBERS星CCD数据开展土地覆盖变化遥感动态监测取得了较理想的效果;1999年至2007年间,株洲市林地、水体和城镇居民点面积所占比重逐渐提高,林地和城镇居民点面积增幅较大,增速呈放缓趋势,从而造成农用地和其他土地面积减少,这可为株洲市合理利用土地资源和地区可持续发展提供一定的科学依据。
Obtaining land-cover information by classification method from remote sensing images was a basic and important project.The CBERS images of Zhuzhou City in 1999,2003 and 2007 were classified with supervised classification methods based on the establishment of land-cover classification system,the land-cover information was extracted and its dynamic changes were analyzed.The results indicated that: it was effective to use CCD data of CBERS to monitor land-cover dynamic information by remote sensing in hilly areas in the middle of China.From 1999 to 2007,the proportion of forest land and water body and construction land were gradually increased in Zhuzhou City,resulting in the decrease of farm land and other land.The increases of forest land and construction land was sharp but the increasing rate became slightly.In conclusion,the results could provide some scientific evidence for the government of Zhuzhou City to make decision in land resources use and the sustainable development.
出处
《林业科学研究》
CSCD
北大核心
2008年第z1期80-84,共5页
Forest Research
基金
国家自然科学基金(30471391)
中南林业科技大学大学生科技创新基金
关键词
RS
土地覆盖
动态监测
CBERS
株洲市
remote sensing
land-cover
dynamic monitoring
CBERS
Zhuzhou City
