基于水生态系统平衡的郓城南湖水体生态净化方案  

Water ecological purification scheme of Yuncheng Nanhu Lake based on water ecosystem balance

作　　者：孙子日哈 尚福强 吴得卿 唐莉华[1] 王硕 蔡一 SUN Ziriha;SHANG Fuqiang;WU Deqing;TANG Lihua;WANG Shuo;CAI Yi(School of Civil Engineering,Tsinghua University,Beijing 100084,China;Power China Roadbridge Group Co.,Ltd.,Beijing 100048,China)

机构地区：[1]清华大学土木水利学院,北京100084 [2]中电建路桥集团有限公司,北京100048

出　　处：《水资源保护》2021年第5期169-176,共8页Water Resources Protection

摘　　要：为提升山东省菏泽市郓城南湖的水质,根据南湖的现状条件,定量计算了年入湖污染负荷总量,并结合文献调研的常见净水植物和动物的去污能力,以GB 3838—2002《地表水环境质量标准》中的Ⅳ类水为目标,设计了基于水生态系统平衡的南湖水体综合净化方案。方案中根据入湖污染负荷量计算了芦苇、荷花、黄菖蒲等水生植物的种植面积,并基于MIKE21模拟得到的南湖氮浓度场分布进行了生态浮岛的平面布置;提出了适宜的水生动物(鱼类和底栖动物)放养种类和数量。根据设计的水体净化方案,评估结果表明,未来湖水水质除COD指标外,其他指标都能够达到Ⅳ类水水质标准;COD主要来源于旅游污染,因此旅游污染的控制对保证湖区水质十分关键。In order to improve the water quality of Yuncheng Nanhu Lake in Heze City,Shandong Province,according to the current conditions of Nanhu Lake,the total annual pollution load into the lake was quantitatively calculated.Combined with the decontamination capacity of common water purification plants and animals investigated in the literature,a comprehensive water purification scheme of Nanhu Lake based on water ecosystem balance was designed with the goal of classⅣwater in the surface water environment quality standard.In the scheme,the planting area of aquatic plants such as reeds,lotus,yellow calamus and so on was calculated based on the pollution load into the lake.The ecological floating islands were laid out based on the distribution of nitrogen concentration field simulated by MIKE21.Suitable stocking species and quantity of aquatic animals(fish and benthic animals)were proposed.According to the designed water purification scheme,the conclusion is estimated that in the future,the water quality of the lake can reach classⅣexcept for COD indicators.COD mainly comes from tourism pollution.Therefore,the control of tourism pollution is very important to ensure the water quality of the lake area.

关 键 词：生态净化 水生态系统平衡 水生动植物 净化能力 污染负荷量 郓城南湖 

分 类 号：X52[环境科学与工程—环境工程]