摘要
建立了由物理化学指标体系、生态指标体系两个二级指标体系组成的生态系统健康评价指标体系。采用多级灰关联评价方法和综合营养状态指数评价方法相结合,对博斯腾湖近10年来水生态健康变化情况进行了综合评价与分析。评价结果显示近10年博斯腾湖的生态系统健康状态总体情况为中等,近3年生态系统健康综合指数呈一定的下降趋势,并找出了导致水环境恶化的主要因素。
The index system of ecosystem health evaluation,consisted by two secondary index,namely physical chemical index system,is established for Bositeng Lake.By combining the multiple gray correlation method and comprehensive nutrition state index method,the variation of the water ecosystem health in recent 10 years is evaluated.The results show that the ecosystem health state is in general moderate in Bositeng Lake,and the health index appears a declining trend in recent 3 years.The main reasons resulting from the environmental degradation are analyzed.
出处
《黑龙江水利科技》
2013年第4期125-127,共3页
Heilongjiang Hydraulic Science and Technology
关键词
博斯腾湖
多级灰关联法
生态健康
评价指标体系
环境恶化
主要因素
Bositeng Lake
multiple gray correlation method
ecological health
evaluation system
environmental degradation
major factor
