东辽河重点断面水质评价方法研究  

Study on water quality evaluation method of key section of Dongliaohe River

作　　者：张宏星 暴瑞玲[1] 林岚[2] 郑国臣[2] ZHANG Hong-xing;BAO Rui-ling;LIN Lan;ZHENG Guo-cheng

机构地区：[1]河海大学水文水资源学院,江苏南京210098 [2]水利部松辽水利委员会,吉林长春130021

出　　处：《东北水利水电》2021年第10期37-39,67,72,共5页Water Resources & Hydropower of Northeast China

摘　　要：本文分别采用了单因子水质标识指数法、综合水质标识指数法、基于超标倍数法和改进熵权法的模糊综合评价,分别对东辽河7个重点断面开展水质评价。通过遴选,确定总氮(TN)、总磷(TP)、氨氮(NH3-N)是东辽河水质的主要影响因子,处于Ⅳ类、Ⅴ类及劣Ⅴ类较多;综合这3种方法比较,单因子评价法表现为过保护,改进的模糊综合评价更适用于低污染河道的水质评价,而水质标识指数法更适用劣Ⅴ类和黑臭水体的水质评价。TIn this paper,the water quality of seven key sections of Dongliaohe River was evaluated by single factor evaluation method,water quality identification index method and improved fuzzy comprehensive evaluation method.Through selection,total nitrogen(TN),total phosphorus(TP)and ammonia nitrogen(NH3-N)are the main factors affecting the water quality of Dongliaohe River,and there are more in class Ⅳ,class Ⅴ and inferior class Ⅴ.Compared with the three methods,the single factor evaluation method is over-protection,the improved fuzzy comprehensive evaluation is more suitable for the water quality evaluation of low pollution river,and the water quality identification index method is more suitable for the water quality evaluation of bad Ⅴ and black smelly water.

关 键 词：东辽河 水质评价 水质标识指数法 模糊综合评价法 

分 类 号：X824[环境科学与工程—环境工程]