缙云山典型林分降雨径流水质研究及预测  

Research on Quality of Typical Rainfall-Runoff Water in Jinyun Mountain

作　　者：杨小梅[1] 王玉杰[1] 刘楠[1] 储小院[1] 齐娜[1] 陈林 刘敏[1] 

机构地区：[1]北京林业大学水土保持学院水土保持与荒漠化防治教育部重点实验室,北京100083 [2]重庆缙云山国家级自然保护区管理局,重庆400700

出　　处：《安徽农业科学》2010年第25期13924-13927,共4页Journal of Anhui Agricultural Sciences

基　　金："十一五"国家科技支撑计划项目(2006BAD03A1802);国家自然科学基金项目(30671661)

摘　　要：运用综合指数法、模糊数学法、灰色关联法和BP神经元法对缙云山2007～2009年的典型降雨径流水质进行了评价,并比较了各评价方法的优缺点。结果发现,缙云山地表径流水质基本上都达到了Ⅱ类标准,而壤中流基本都达到了Ⅰ类水标准,达到源头水或国家自然保护区的标准。在此基础上,根据多年观测资料、缙云山森林资源二类清查数据以及实地调查资料,利用ERDAS和ARCGIS建立森林类型及面积数据库,建立预测模型,对典型降雨条件下径流输出的水质和污染物总量进行了预测。预测典型降雨条件下,地表径流水质为Ⅱ级,而壤中流水质达到了Ⅰ级,说明缙云山典型降雨条件下输出水质良好。利用预测模型,预测当降雨量为20mm时,输出污染物总量分别为总磷6013.10kg,铜2294.75kg,锌2177.11kg,氟6604.46kg,铅511.28kg,铬(六价)45.89kg。In this paper,General Index,Blur-Mathematics,Grey Incidence and BP Neural Network are used to evaluate the water quality of Jinyun Mountain from 2007 to 2009,After the comparison of the advantages and disadvantages of various evaluation methods,it is found that the water quality of surface runoff basically reaches the standard class Ⅱ,and interflow basically reaches class Ⅰ which is water standards of the source water standards or national nature reserve.Based on years of observation data,Jinyun Mountain Forest Inventory inventory data and data obtained from field survey,the database for forest type and area as well as the forecasting model are established by ERDAS ARCGIS.The runoff water quality and total amount of pollutant under typical rainfall conditions are predicted.When the rainfall is typical,surface runoff water quality is class Ⅱ and interflow basically reaches classⅠ,indicating that the output water quality under the typical rainfall conditions in Jinyun Mountain is good.By using the forecasting model,when the rainfall is 20 mm,the total output of pollutants are 6 013.10 kg Total Phosphorus,2 117.11 kg Zinc,2 294.75 kg Copper,6 604.46 kg F,511.28 kg Lead,45.89 kg Chromium （VI）.

关 键 词：径流 水质评价 水质预测 缙云山 

分 类 号：P468.024[天文地球—大气科学及气象学]