摘要
以松嫩平原湖泊为研究对象,2008年6～8月对27个湖泊水体总氮、总磷、高锰酸盐指数等指标进行了测试和分析。结果显示,松嫩平原湖泊水体高锰酸盐指数、总磷含量和总氮含量普遍较高。湖泊营养状态综合评价结果表明,27个湖泊中只有牛心套宝泡水体处于中营养状态,其营养状态指数为53.69,目前其他湖泊营养状态指数均高于54,都已呈富营养化状态。不同时期月亮泡、查干湖水质指标的对比显示,这两个湖泊水体的总磷含量和总氮含量都有所上升,富营养化程度加剧。
Songnen Plain is located in the north of the Northeast China Plain.With the development of industry and agriculture,the environment of the Songnei Plain has been greatly changed,which results in changes of the lake environment.27 lakes in the Songnen Plain are selected as research object.Water samples in these lakes are collected from June to August in 2008.Trophic state indexes（TSI）of the Songnen Plain are calculated by using the evaluation model of eutrophication of lakes.The results show that total nitrogen,total phos-phrous and permanganate index in lakes of the Songnen Plain are generally high.Permanganate indexes of 27 lakes are 6.5-49.76 mg/L.Lakes in the Songnen Plain except for Dabusu and Balipao Lakes are used to culture fish,which may result in organic matter increasing.Total phosphorus content of 27 lakes are 0.051-3.29 mg/L.Among these lakes,total phosphorus of Niuxinjtaobao and Cile lakes is 0.05-0.1 mg/L,and total phos-phorus is 0.1-0.2 mg/L in Nanshan,Keqin,Yueliang,Xinmiao,Maoxing,Lianhuan,and Chagan lakes.Total phosphorus is 0.2-1.0 mg/L in Xinhuang,Dalonghu,Qijia,Lamasi,Sanyong,Laojiangshen,Dabusu,Kuli, Xiaolonghu,Talahong,Qingken and Bali lakes.Total phosphorus is higher than 1.0 mg/L in Etou,Yangsha, Huaao and Yamudange lakes,and total phosphorus in Yamedange lake is highest.According to total phosphorus and permanganate index,water quality of 27 lakes in the Songnen Plain is considered to exceedⅢclass. According to total nitrogen,it is considered that water quality of few lakes isⅡ-Ⅴclass,and that of most lakes is inferiorⅤclass.The comprehensive evaluation of eutrophication shows that all lakes are in eutrophic level and their trophic state indexes are all higher than 54 except for the Niuxintaobao Lake,which is in mesotrophic level with the trophic state index being 53.69.The contrasting analysis of the water quality between Yueliang Lake and Chagan Lake in different periods shows that TP and TN in both lakes rise gradually,and degree of eutrophication increase with time.
出处
《湿地科学》
CSCD
2011年第2期120-124,共5页
Wetland Science
基金
科技部基础性工作专项项目(2006FY110600)
国家自然科学基金项目(40972115)资助
关键词
松嫩平原
水质
湖泊
Songnen Plain
water quality
lake
