JIANG Ying,WANG Xue-jun,LUO Ding-gui.Parameters Sensitivity Analysis of Watershed Management Model——Application of WARMF Model in Chaohu Lake Area[J].Research of Soil and Water Conservation,2006,13(03):165-168.
流域管理模型的参数灵敏度分析——以WARMF在巢湖地区的应用为例
- Title:
- Parameters Sensitivity Analysis of Watershed Management Model——Application of WARMF Model in Chaohu Lake Area
- Keywords:
- model; parameter; sensitivity analysis; WARMF; Chaohu Lake
- 分类号:
- P333
- 摘要:
- 水质模型参数灵敏度分析不仅是模型率定的必要前提，也为水质管理提供参考。WARMF模型是大型流域管理分布式机理模型，选定巢湖流域杭埠-丰乐河子流域为研究区域，通过流域概化将杭埠-丰乐河流域划分为37个汇流区单元、36个河段单元和1个湖泊单元。之后，以杭埠-丰乐河流域4号子流域及其河段为例，采用局部灵敏度分析方法对模型水文、泥沙、水质主要参数进行了灵敏度分析。根据灵敏度分析结果进行调参，可以大大节省模型参数的校核时间，并且提高精度。
- Abstract:
- Parameter sensitivity analysis of water quality model is the basis of model calibration, and can also provide reference to water quality management.WARMF (Watershed Analysis Risk Management Frame) is a distributed watershed management model.Hangbu River-Fengle River watershed of Chaohu Lake basin was selected as the research area.This watershed was divided into 74 units, which includes 37 subwatershed, 36 river segments and 1 lake unit.Partial sensitivity analysis was applied to study the sensitivity of main parameters of WARMF model, including hydrology, sediment.water quality, in the No.4 subwatershed and No.4 river segment of the selected study area.Based on the analysis result, efficiency of model calibration can be significantly improved.
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备注/Memo
收稿日期:2005-7-12
基金项目:教育部优秀青年教师计划资助项目，基金（40371105，40021101）
作者简介:蒋颖（1980- ），女，北京大学在读硕士研究生，主要从事环境经济与管理方向研究。