[1]PAN Pei,LIU Ling,LIANG Wei.Usage Study of Non-point Source Pollution Model ANSWERS-2000’s Hydrology Sub-model[J].Research of Soil and Water Conservation,2008,15(01):103-106.
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Research of Soil and Water Conservation[ISSN 1005-3409/CN 61-1272/P] Volume:
15
Number of periods:
2008 01
Page number:
103-106
Column:
Public date:
2008-02-20
- Title:
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Usage Study of Non-point Source Pollution Model ANSWERS-2000’s Hydrology Sub-model
- Author(s):
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PAN Pei1,2, LIU Ling1,2, LIANG Wei1,2
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1. State Key Laboratory of Hydrology-water Resources and Hydraulic Engineering, Hohai University, Nanjing 210098, China;
2. Hydrology and Water Resources College, Hohai University, Nanjing 210098, China
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- Keywords:
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big-earth-groove; non-point pollution; ANSWERS-2000; Green-Ampt infiltration equation; crust thickness
- CLC:
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P343;X171
- DOI:
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- Abstract:
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Before the non-point pollution occurs, there are some pollutant and nutrition leached and, together with the runoff, rushed to downstream.In an indoor precipitation experiment, ANSWERS-2000 model (hydrology sub-model) were used to find out if it can model the rainfall-runoff process accurately and if it’s suitable for Chinese watershed, and giving out some suitable value of parameter in sub-model.It’s found out that given hydrology sub-model can model runoff process with letter errors, the value is systematicly bigger and the value of Manning roughness coefficient is located in 0.03~0.07.There are also some problems that crust thickness has no suitable value and the rainfall and runoff equipment has created some error in runoff modeling.