摘要
根据科学性、代表性、综合性、系统性、动态性和易获性原则,建立了广西生态环境综合评价指标体系,用AHP法计算各指标的权重,用于评价广西生态环境质量.结果表明:广西生态环境综合评价指标体系24个指标的权重确定中,森林覆盖率所占的权重最大,土地石漠化率的权重居第二,年均降水量居第三,阔叶林面积比重居第四,地表水资源指数居第五,水土流失率居第六,农膜使用强度所占的权重最小.这说明反映广西生态环境质量的主要因素是森林和水;广西山地面积大、石山面积多,水土流失和土地石漠化是广西生态环境的主要问题.
Eco_environmental quality assessment index system in Guangxi is set up and the weight of each index is calculated by AHP.The result may be used for evaluating Guangxi eco-environmental quality.It indicates that,among the 24 indexes of the index system of eco-environmental quality assessment in Guangxi,the percentage of forest cover is the most important,the percentage of rocky desertification area is the second,annual rainfalls is the third,the percentage of broadleaf forests is the fourth,water resources index is the fifth,the percentage of soil erosion is the sixth.This viewpoint indicates that the primary factor of impairing the eco-environmental quality in Guangxi is forest and water,and that soil erosion and rocky desertification are the primary eco-environmental problems in Guangxi.
出处
《广西师范学院学报（自然科学版）》
2003年第3期8-15,共8页
Journal of Guangxi Teachers Education University(Natural Science Edition)
基金
广西教育厅科研基金资助项目
国土资源部资助项目
关键词
生态环境综合评价
指标体系
AHP法
权重
广西
comprehensive evalution of regional eco-environment
assessment index system
analytic hierarchy process method
weighing
