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.
非点源污染模型ANSWERS-2000的水文子模型研究
- Title:
- Usage Study of Non-point Source Pollution Model ANSWERS-2000’s Hydrology Sub-model
- 关键词:
- 大型土槽; 非点源污染; ANSWERS-2000; Green-Ampt入渗方程; 结皮层
- Keywords:
- big-earth-groove; non-point pollution; ANSWERS-2000; Green-Ampt infiltration equation; crust thickness
- 分类号:
- P343;X171
- 摘要:
- 非点源污染的前期过程，是在流域面上污染物质或是营养元素随着降雨径流的产生而产生。利用实验室大型土槽试验，研究ANSWERS-2000模型的水文子模型对于人工降雨事件的模拟精度，探索ANSWERS-2000在理想坡面上的适用情况，并且尽可能准确地给出其水文模型的部分参数的取值。经过计算发现该水文子模型模拟理想坡面的误差较小，但是存在系统偏大的情况；整个计算单元的Manning糙率取0.03~0.07。存在的问题有参数土表面结皮层厚度只能定性无法准确的定量描述；降雨装置测流装置对于径流模拟产生的影响较大。
- Abstract:
- 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.
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备注/Memo
收稿日期:2006-10-23
基金项目:国家自然科学基金重点项目（50239030）
作者简介:潘沛（1981- ），男，上海人，硕士研究生，主要从事非点源污染及坡面产污研究。