摘要
以小江流域不同时期遥感数据为基础,应用多种景观格局指数,对小江流域的景观格局效应进行了分析与探讨。结果表明,各种土地利用类型的斑块形状都极不规则,而且还呈明显增大趋势;小江流域的景观类型多样性在研究期间呈递增趋势,但增幅不大,同时景观优势度指数则表现出递减趋势,表明该研究区中各景观类型所占比例的差异在不断减小,这从景观均匀度指数上也得到了验证。在各种土地利用类型中,居民点与工矿用地的破碎度最大,草地的破碎化程度最低,这与居民点与工矿用地的分布比较分散有关。
Based on remote sensing image data in Xiaojiang Basin,the landscape pattern change of Xiaojiang Basin with many landscape pattern indexes was analyzed.The results showed that the patch shape of different land-use types was very irregular and had an obvious increasing trend.In the period,the landscape diversity increased constantly and the dominance index decreased,so it showed the difference of the proportion of each landscape type reduced,and this result was verified by the equality index.In all land-use types,the fragmentation index of town and resident land was the largest,and the index of grassland was the lowest,and it was related with the scattered distribution of town and resident land.
出处
《湖北农业科学》
北大核心
2012年第18期3980-3983,共4页
Hubei Agricultural Sciences
基金
国家自然科学基金项目(41101385)
河南省哲学社会科学规划项目(2010FJJ035)
关键词
景观格局
动态变化
遥感技术
小江流域
landscape pattern
dynamical changes
remote sensing technique
Xiaojiang Basin
作者简介
贾松伟（1979-），男，河南新密人，博士，主要从事土地利用与碳循环方面研究，15838833953（电子信箱）jswl011@163.com。
