基于土地利用景观结构的山东省生态风险分析  

Ecological Risking Assessment in Shandong Province Based on Landuse Landscape Structure

作　　者：杨永峰[1,2] 孙希华[3] 王百田[1] 

机构地区：[1]北京林业大学水土保持学院,北京100083 [2]山东省水利厅,山东济南250013 [3]山东师范大学人口.资源与环境学院,山东济南250014

出　　处：《水土保持通报》2010年第1期232-235,共4页Bulletin of Soil and Water Conservation

基　　金：国家自然科学基金面上项目"中观尺度区域环境管理系统构建与运行机制研究"(40771077)

摘　　要：生态风险评价是当前学术界的热点问题之一。土地利用景观的组分结构特征是最易于保存的景观信息,利用景观结构及其动态变化特征,可揭示综合性生态影响的程度和分布范围。通过构建综合生态风险指数,利用GIS空间分析法,对山东省生态风险的空间特征进行评估。结果表明,山东省生态风险指数平均值为0.36,属于中等偏低型。从土地利用类型上看,工矿交通建设用地的风险等级较高,林地的生态风险等级相对来说是最低的。最后提出了防治山东省生态风险的对策。The assessment of ecological risk is currently one of the foremost leading subjects in academic community. The feature of ingredient landscape characteristics is the information easily preserved. In virtue of landscape structure and its dynamic change feature, it can display the comprehensive trend and distributional scope for ecological impacts. This research, based on constituting comprehensive index in ecological risk assessment and utilizing spatial analysis of GIS, assesses the spatial features of ecological risk in Shandong Province. It shows that the mean ecological risking index in Shandong Province is 0.36, which implies that it belongs to mid-degree risk type. Within all risk types, fairly low risk type is the most common one. From the viewpoint of landuse type, the regions under construction and people＇s living have high ecological risk and on the contrary, the ecological risk of forestry land is correspondingly the lowest. Finally, the measurements against the ecological risk are presented.

关 键 词：土地利用 景观结构 生态风险 风险评价 

分 类 号：X820.4[环境科学与工程—环境工程]