IGSNRR OpenIR
representationofagriculturalbestmanagementpracticesinafullydistributedhydrologicmodelacasestudyintheluoyugouwatershed
Wu Hui1; Liu Yongbo1; Liu Junzhi2; Zhu Axing1
2014
Source Publicationjournalofresourcesandecology
ISSN1674-764X
Volume5Issue:2Pages:179
AbstractAgricultural Best Management Practices (BMPs) are effective ways to reduce agricultural nonpoint source pol ution from their source area to receiving water bodies. Characterization of BMPs in a watershed model is a critical prerequisite for evaluating their impacts on water quantity and water quality in a complex system. However, limited research has reported about the representation of BMPs in fully distributed models. This paper presents a stepwise procedure for representation of several BMPs and assessment of their hydrologic impacts with a ful y distributed model, SEIM (Spatially Explicit Integrated Modeling). A case study is conducted in the 73 km~2 Luoyugou watershed located in the Loess Plateau of China, where rainstorm erosion accounts for more than 60%of annual sediment load in average. Three BMPs are selected in this study including (i) conversion from farmland to forest, (i) terrace, and (i i) no-til farming. These management practices are represented in the model through the alteration of model parameters characterizing their physical processes in the ifeld. The results of scenario assessment for a historical storm event showed that the maximum sediment reduction after terrace is about 97.3%, the average sediment reduction after no-till farming is about 9.5%, and the average sediment reduction after conversion from farmland to forest is 75.6%.
Language英语
Document Type期刊论文
Identifierhttp://ir.igsnrr.ac.cn/handle/311030/118961
Collection中国科学院地理科学与资源研究所
Affiliation1.中国科学院地理科学与资源研究所
2.南京师范大学
First Author Affilication中国科学院地理科学与资源研究所
Recommended Citation
GB/T 7714
Wu Hui,Liu Yongbo,Liu Junzhi,et al. representationofagriculturalbestmanagementpracticesinafullydistributedhydrologicmodelacasestudyintheluoyugouwatershed[J]. journalofresourcesandecology,2014,5(2):179.
APA Wu Hui,Liu Yongbo,Liu Junzhi,&Zhu Axing.(2014).representationofagriculturalbestmanagementpracticesinafullydistributedhydrologicmodelacasestudyintheluoyugouwatershed.journalofresourcesandecology,5(2),179.
MLA Wu Hui,et al."representationofagriculturalbestmanagementpracticesinafullydistributedhydrologicmodelacasestudyintheluoyugouwatershed".journalofresourcesandecology 5.2(2014):179.
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