摘要
流域作为一个特殊的地理生态环境区域,流域景观空间格局状况是进行流域环境资源管理的基础依据。针对澜沧江—湄公河国际河流上游云南段,基于遥感监测所获得的土地覆盖斑块信息,就该地区景观格局进行分析研究。初步结果表明:研究区内景观类型丰富,不同景观类型斑块大小的平均水平,以及斑块密度差异明显;山区旱地斑块景观,作为人类驱动影响的直观外在表现,它对本流域山区景观格局具有主导作用。
As a special geo-physical region, Lancang River watershed landscape pattern in Yunnan province is important to study basin's development and sustainable utilities of natural resources based on the environment Based on the land-cover patchs come from remote sensing monitoring result, by use of landscape ecosystem theories analysis method, analysis on landscape condition and pattern was completed in this paper The preliminary results is that: (1) in general, the type of landscape is rich in study area, but spatial distribution of these patchs is much unbalance; (2) some landscape types dominance is obvious, such as forest patch type, dry-land cultivation patch type, grass-land patch type, paddy patch type, urban and village; (3) the different landscape types is of the obvious difference in patch size, patch density, edge density; (4) dry-land cultivation patch type is of the most biggest patch size that implied this manmade landscape patch type is the main factor controled landscape structure
出处
《云南地理环境研究》
2003年第3期33-39,共7页
Yunnan Geographic Environment Research
基金
十五"国家重点科技攻关计划"西部开发"重大项目(2002BA901A22)
