节点文献
基于GIS的白洋淀流域生态环境评价
Eco-environmental evaluation of Baiyangdian Watershed using GIS
【摘要】 采用GIS技术和生态环境状况评价技术规范,对白洋淀流域生态环境状况进行了评价。结果表明:白洋淀流域生态环境状况指数为53.03,属“一般”级别,表现为植被覆盖度中等,生物多样性一般,较适合人类生存。流域水网密度指数和环境质量指数低,仅分别为11.18和12.68,是造成流域内生态环境状况指数偏低的主要原因,也是人类生存的制约因子。
【Abstract】 The eco-environment of Baiyangdian Lake Watershed was evaluated by using GIS technology.The results show that the exponent of eco-environmental status is 53.05 graded as "general grade".This grade of eco-environmental status has a medium vegetation coverage and biodiversity with suitable environment for human living.The limiting factors for human living in the area are water density and environmental quality,which are lower,11.18 and 12.68,respectively.
【基金】 河北省环保局科技项目(200304);河北省科技厅项目(04276713)资助
- 【文献出处】 中国生态农业学报 ,Chinese Journal of Eco-Agriculture , 编辑部邮箱 ,2007年03期
- 【分类号】X826
- 【被引频次】32
- 【下载频次】795