基于GIS和RS下的福建省生态环境综合评价  

Comprehensive evaluation on ecological environment of Fujian province based on GIS and RS

作　　者：林惠花[1] 武国胜[1] 

机构地区：[1]福建师范大学地理科学学院,福建福州350007

出　　处：《海南师范大学学报（自然科学版）》2008年第2期213-217,228,共6页Journal of Hainan Normal University（Natural Science）

基　　金：国家自然科学基金资助项目(40371096);福建省科技厅青年人才基金资助项目(2004J015)

摘　　要：基于GIS和RS技术,生成了福建省生态环境各因子专题数据库,并基于层次分析法思想确立综合评价的三级分层次指标,在用主成分分析法确定各层次分解因子权重的基础上,计算综合指数来评价福建省生态环境质量.得出福建省各生态环境质量区在统计上呈偏正态分布,第四级区占全省总面积的72.53%,生态环境总体质量处于中等偏下状态,在空间格局上,优劣区呈相间分布态势,高值区在东部沿海相对集中,而中西部的山地陡坡带是低值分布区,这种格局与研究区基于地势自西向东呈马鞍形、地形条带分割为基础的水热分异和人类活动强度等有较强的关联性.Based on GIS and RS techniques, the paper builds the special databases of ecological environment factors and establishes the comprehensive assessment indexes of three class with PCA method, the eco-environment of Fujian Province is studied with comprehensive index. The results indicates that the eco-environment quality of Fujian Province is almost symmetric, in which the forth grade accounts for 72.53% of the whole. From the spatial distribution, the eco-environment quality alternates between the good and the bad. The better centralizes relatively at the coastal area and the worse scatters in the middle-west moun- tainous region. This kind of distribution has a strong relation with the changing trend of the topography and hydro-thermal conditions and intensity of human activity etc.

关 键 词：生态环境 综合评价 地理信息系统和遥感技术 主成分分析法 福建省 

分 类 号：P208[天文地球—地图制图学与地理信息工程]