摘要
通过实地调查庆元县的水环境现状、河道的水力学特点及其水动力条件,提出了可行数学模型对主要污染物排放情况进行定量模拟,通过模型计算得庆元县现状的COD_(Cr)、NH_(3)-N、TP水环境容量分别是410.39、13.93、0.45 t/a。通过建立科学的评价指标体系,从水资源、水生态环境、社会经济3个系统中共选取19项相关评价指标,运用模糊综合评价模型从时间维度综合研究庆元县的水环境承载能力,表明2014—2019年水环境承载力基本呈逐年上升趋势。
By field investigation of water environment,hydraulic characteristics and hydrodynamic conditions of rivers in Qingyuan County,a feasible mathematical model to quantitatively simulate the discharge of main pollutants was put forward.The verification of the model calibration of relevant parameters were completed.Through the calculation of the model,the current water environmental capacity of chemical oxygen demand,ammonia nitrogen and total phosphorus in Qingyuan County were 410.39,13.93 and 0.45 t/a,respectively.19 relevant evaluation indexes were selected from the three systems of water resources,water ecological environment and social economy in the establishment of a scientific evaluation index system.The fuzzy comprehensive evaluation model was used to study the water environment carrying capacity of Qingyuan County comprehensively from the time dimension.Results showed that the water environment carrying capacity was basically increasing year by year from^(2)014 to 2019.
作者
吴德慧
陈俊
吴有富
张远孝
WU De-hui;CHEN Jun;WU You-fu(Qingyuan Branch of Lishui Ecological Environment Bureau,Lishui,Zhejiang 323800;Zhejiang Huanbo Environmental Protection Technology Co.,Ltd.,Lishui,Zhejiang 323000)
出处
《安徽农业科学》
CAS
2022年第4期91-94,105,共5页
Journal of Anhui Agricultural Sciences
关键词
山区型河流
水环境容量
水环境承载力
庆元县
Mountainous river
Water environment capacity
Water environment carrying capacity
Qingyuan County
