| 非点源污染模型AnnAGNPS在三峡库区林农复合小流域模拟效果评定 |
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| 引用本文： | 黄志霖,田耀武,肖文发,曾立雄,马德举. 非点源污染模型AnnAGNPS在三峡库区林农复合小流域模拟效果评定[J]. 环境科学, 2009, 30(10): 2872-2878 |
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| 作者姓名： | 黄志霖 田耀武 肖文发 曾立雄 马德举 |
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| 作者单位： | 中国林业科学研究院森林生态环境与保护研究所,国家林业局森林生态环境重点实验室,北京,100091;中国林业科学研究院森林生态环境与保护研究所,国家林业局森林生态环境重点实验室,北京,100091;河南科技大学林学院,洛阳,471003;秭归县林业局,宜昌,443600 |
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| 基金项目： | “十一五”国家科技支撑计划项目(2006BAD03A13,2006BAD03A07) |
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| 摘 要： | 应用连续农业非点源污染AnnAGNPS模型(Annualized AGricultural NonPoint Source Model)模拟三峡库区林农复合小流域的径流、泥沙和营养物输出,以2003年和2004年的小流域观测数据对模型分别进行校准和验证,并以统计参量决定系数(R2)、Nash-Sutcliffe效率系数(E)和相对误差(VE)对模拟结果进行评定.结果表明,径流量模型模拟结果误差在可接受范围之内,模型校准期模拟值VE值为5.0%(R2=0.93,p<0.05),验证期内模型VE值为6.7%(R2=0.90,p<0.05);与径流模拟比较,泥沙模拟结果精度较低,校准期内模型VE值为15.1%(R2=0.63,p<0.05),验证期内模型VE值为26.7%(R2=0.59,p<0.05);次降水较小,产生径流和泥沙较少时,模型模拟值则偏高,反之则偏低.氮输出模拟决定系数R2值0.68(p<0.05),略高于磷输出模拟决定系数(R2=0.65,p<0.05).模型对径流输出的模拟精度高于对泥沙和营养物的输出模拟.在三峡库区农林复合小流域应用AnnAGNPS模型模拟农业非点源污染输出满足流域管理要求.
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| 关 键 词： | AnnAGNPS模型 径流 泥沙输出 营养物输出 三峡库区 模拟效果 |
| 收稿时间： | 2008-11-07 |
| 修稿时间： | 2009-02-17 |
Nonpoint Source Pollution Model, AnnAGNPS, Assessment for a Mixed Forested Watershed in Three Gorges Reservoir Area |
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| HUANG Zhi-lin,TIAN Yao-wu,XIAO Wen-f,ZENG Li-xiong and MA De-ju. Nonpoint Source Pollution Model, AnnAGNPS, Assessment for a Mixed Forested Watershed in Three Gorges Reservoir Area[J]. Chinese Journal of Environmental Science, 2009, 30(10): 2872-2878 |
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| Authors: | HUANG Zhi-lin TIAN Yao-wu XIAO Wen-f ZENG Li-xiong MA De-ju |
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| Affiliation: | 1;2;1.Key Laboratory of Forest Ecology and Environment;State Forestry Administration China;Research Institute of Forest Ecology;Environment and Protection;Chinese Academy of Forestry;Beijing 100091;China;2.College of Forestry;Henan University of Science and Technology;Luoyang 471003;3.Forestry Bureau of Zigui County;Yichang 443600;China |
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| Abstract: | Watershed models provide a cost-effective and efficient means of estimating the pollutant loadings entering surface waters,especially when combined with traditional water quality sampling and analyses.But there have often been questions about the accuracy or certainty of models and their predictions.The main goal of this study was to evaluate the performance of AnnAGNPS(Annualized AGricultural NonPoint Source)Pollution Model,in simulating runoff,sediment loading and nutrient loadings under Three Gorges Rese... |
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| Keywords: | AnnAGNPS model runoff sediment loading nutrient loading Three Gorges Reservoir area performance |
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