| 抚仙湖集水域地表径流入湖水量模拟 |
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| 引用本文： | 徐金涛,张奇,徐力刚.抚仙湖集水域地表径流入湖水量模拟[J].湖泊科学,2007,19(6):718-726. |
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| 作者姓名： | 徐金涛 张奇 徐力刚 |
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| 作者单位： | 1. 中国科学院南京地理与湖泊研究所,南京,210008;中国科学院研究生院,北京,100049
2. 中国科学院南京地理与湖泊研究所,南京,210008 |
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| 基金项目： | 国家自然科学基金
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中国科学院"百人计划"
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南京地理与湖泊研究所所长基金
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教育部留学回国人员科研启动基金 |
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| 摘 要： | 采用适用于无资料流域、参数较少的SCS模型计算抚仙湖集水域地表径流量.模型考虑了集水域下垫面条件的空间差异,利用Maplnfo/Arc view软件按照土地利用方式与土壤类型的不同,把集水域划分为若干个水文响应单元,分别计算产流量,较准确地模拟了入湖径流量.通过对梁王河流域和大鲫鱼沟流域实测降雨径流资料的分析与反演,提出了适合该区域的产流计算CN值.在对CN值作坡度修正后再应用到其它无观测数据区域.通过模型计算得到的抚仙湖集水域2005年3月1日-2006年2月28日地表径流量为1.74×108 m3,陆面径流系数为0.395.模型为指导抚仙湖集水域径流观测及入湖污染物负荷的计算提供依据.
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| 关 键 词： | SCS模型 地表径流 抚仙湖集水域 CN值 抚仙湖集水域 地表径流 入湖水量 模拟 catchment Lake modeling runoff 负荷 入湖污染物 指导 径流系数 陆面 数据区域 观测 应用 修正 坡度 产流计算 反演 |
| 收稿时间： | 2006-10-20 |
| 修稿时间： | 2006-12-30 |
Surface runoff modeling of Lake Fuxian catchment |
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| XU Jintao,ZHANG Qi and XU Ligang.Surface runoff modeling of Lake Fuxian catchment[J].Journal of Lake Science,2007,19(6):718-726. |
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| Authors: | XU Jintao ZHANG Qi and XU Ligang |
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| Institution: | Nanjing Institute of Geography and Limnology, Chinese Academy of Sciences, Nanjing 210008, P. R. China;Graduate School, Chinese Academy of Sciences, Beijing 100049, P. R. China,Nanjing Institute of Geography and Limnology, Chinese Academy of Sciences, Nanjing 210008, P. R. China and Nanjing Institute of Geography and Limnology, Chinese Academy of Sciences, Nanjing 210008, P. R. China |
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| Abstract: | SCS model is adopted in this paper to simulate surface runoff for Lake Fuxian catchment.The model considers the spatial diversities of the land surface via dividing the catchment into a number of hydrological response units(HRU)based on different ianduses and soil types.The surface runoff for each HRU is calculated and the to- tal surface runoff into the lake is modeled.CN values of the SCS model are calibrated by matching the modeled re- sults with the observed ones for the gauged river catchments of Liangwanghe and Dajiyugou.The model is then ap- plied to other ungauged areas of Lake Fuxian catchment after making slope corrections of the CN values.The model indicates that the total surface runoff is 174 million m~3 for a one-year period of March 2005 to February 2006,with an average runoff coefficient of 0.395.The model is believed to be helpful in guiding further field observations.The modeled results are also useful in constructing more detailed hydrological models as the next step,and in calculat- ing mass of pollutants loaded to the lake. |
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| Keywords: | SCS model surface runoff Lake Fuxian catchment CN value |
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