摘要
针对典型区的生态遥感监测的需要,采用RS、GIS一体化信息提取技术和数理统计方法,对呼伦贝尔地区进行了森林-草原生态交错带多时相遥感数据分析研究,揭示了研究区土地覆盖和生态要素结构变化、生态脆弱特征及时空分布规律,并以量化和可视化的形式反映了该地区生态环境现状及其变化。结果表明,近16年来该地区的生态质量在不断下降,草地退化和荒漠化的范围在扩大,生态环境形势严峻。人口增长和超载放牧是土地利用变化的主要原因。
Aiming at the demand of remote sensing（RS） investigation of eco-environment, we study the multi remote sensing data of forest-steppe in Hulun Buir. The research reveals the constructional change of the land cover and eco-elements, the ecological frail characteristic and temporal and spatial distribution law. Furthermore, the author reveals the current situation of eco-environment and its change law of the region in form of quantity and visulisation. The results indicate that the quality of ent is descending, and the degeneration and desertification range of grassland is enlarging. The population increase and overherd are main reasons for that.
出处
《遥感信息》
CSCD
2006年第3期36-39,i0004,共5页
Remote Sensing Information
基金
国家科技部"十.五"科技攻关项目(2003BA614A-06-04)
国防科工委项目(科工技[2004]186)
国家"十五"863计划项目(2003AA131060)资助
