摘要
在新安江干流黄山段进行通用流域污染负荷模型(GWLF)与一维河道水质模型(QUAL2Kw)模型联用研究,以实现水质模型在面源污染为主导的河段开展应用。将GWLF模型的面源负荷结果作为QUAL2Kw模型的面源输入,结合点源排放数据,进行水质模拟。结果表明:通过与GWLF模型联用,QUAL2Kw模型能够较好地模拟出河道水质状况。干流面源污染对街口断面活性CBOD、总氮、氨氮、硝态氮的占有比例最为显著,分别占到全部负荷的31.78%、45.85%、23.11%、70.86%。上述各污染源对街口断面污染物的占有比例有利于相关水质管理部门开展有针对性的污染减排措施,实现对流域水环境的有效保护。
The linkage of Generalized Watershed Loading Functions model( GWLF) and one dimensional water quality model( QUAL2Kw) was applied in the main stream of Xin'an River located in Huangshan segment so as to realize the water quality model to apply in the river segment of a non-point oriented watershed. The paper took the result of non-point source load as the input data of GWLF model,and combined the release records of point source to carry out water quality simulation. The results indicated that through the linkage of GWLF and QUAL2 Kw model,QUAL2 Kw model can better simulate the status of the river water quality. The proportion of non-point source pollution contribution to each pollutants of Jiekou section is notable. The proportions of each pollutants are CBOD( 31. 78%),total nitrogen( 45. 85%),ammonia nitrogen( 23. 11%) and nitrate nitrogen70. 86%). Such contribution apportionments to Jiekou section could be used by local water quality management agency to adopt specific pollution reduction measures so as to achieve effective protection of water environment.
出处
《水资源与水工程学报》
2014年第6期163-168,175,共7页
Journal of Water Resources and Water Engineering
基金
环保部水污染综合防治项目(2013A009)
环保部国家环境保护规划研究项目(2013A218)
