水资源与水工程学报2016，Vol.27Issue(1)：33-39,7.DOI:10.11705/j.issn.1672-643X.2016.01.06
基于SWAT分布式流域水文模型的下垫面变化和水利工程对径流影响分析
Impacts of land cover change and hydraulic project on runoff based on SWAT distributed watershed hydrological model
摘要
Abstract
With the intensification of human activities,a lot of hydraulic projects such as reservoirs,dams,levees,flood storage and detention areas have been built,which have completely changed the natural water flow.The soil and water assessment tool (SWAT) was calibrated and verified in the baseline period before 1960s.It simulated the runoff after 1990s with stability human activity.It set up the three circumstances such as natural SWAT,SWAT with just concerning land cover change and SWAT with concerning hydraulic projects activities as well as land cover change.The simulated results of Wudaogou,Yangzishao,Dongfeng and Panshi hydrological station show that the correlation coefficient R2 and Nash coefficient NSE increases from 0.82,0.56 to 0.91,0.79.The 91.3％ precision of the increase value is due to the role of hydraulic project,and the remainder is caused by the change of underlying surface.The operation of hydraulic project plays a leading role in the runoff change of the basin.关键词
SWAT模型/水利工程/下垫面变化/模型参数/径流Key words
SWAT/hydraulic project/land cover change/model parameter/runoff分类
天文与地球科学引用本文复制引用
孙新国,彭勇,周惠成..基于SWAT分布式流域水文模型的下垫面变化和水利工程对径流影响分析[J].水资源与水工程学报,2016,27(1):33-39,7.基金项目
重大国际(地区)合作研究项目(51320105010) （地区）
国家自然科学基金项目(51379027、51109025) （51379027、51109025）
