水利水电科技进展2026，Vol.46Issue(2)：1-11,11.DOI:10.3880/j.issn.1006-7647.2026.02.001
高淳西部圩区水系连通变化对水环境的影响分析
Analysis of impacts of water system connectivity changes in the western polder area of Gaochun District on water environment
摘要
Abstract
Five water system connectivity schemes were designed to quantitatively evaluate the connectivity of the western polder area of Gaochun District in Nanjing.Based on the hydrological,hydrodynamic,and water quality models,the water environmental response characteristics under each scheme were simulated.The results show that connecting river channels(scheme 1)significantly improved the water quality of rivers such as the Caotang Xishan River,with annual average mass concentrations of ammonia nitrogen,total phosphorus and total nitrogen in the Caotang Xishan River decreasing by 0.65,0.14,and 1.21 mg/L,respectively,indicating that river channel connection can accelerate pollutant attenuation.Connecting the Chenglonggang River and Guanxi River(scheme 2)reduced annual average mass concentrations of ammonia nitrogen,total phosphorus,and total nitrogen in the Chenglonggang River by 0.84,0.15,and 0.90 mg/L,respectively.However,it caused a slight decline in the water quality of Gucheng Lake and rivers such as the Hengxi River,indicating that when the self-purification capacity of the water body is exceeded,the channel connection will pollute originally good-quality water bodies.Deepening river channels(scheme 3)and widening river channels(scheme 4)have a weak impact on the water environment.Increasing tributaries(scheme 5)reduced the water volume of the Qiqiao River,leading to increases in annual average mass concentrations of ammonia nitrogen,total phosphorus and total nitrogen by 0.11,0.02,and 0.04 mg/L,respectively,thereby negatively affecting the water environment of the lake area of Gucheng Lake downstream.关键词
水系连通/水环境/SWAT模型/MIKE11模型/高淳西部圩区Key words
water system connectivity/water environment/SWAT model/MIKE11 model/the western polder area of Gaochun District引用本文复制引用
高玉琴,王丽君,李媛媛,唐静..高淳西部圩区水系连通变化对水环境的影响分析[J].水利水电科技进展,2026,46(2):1-11,11.基金项目
江西省水利科技重点项目(202527ZDKT22) （202527ZDKT22）
江苏省水利科技项目(2023009) （2023009）
