Water quality of rivers in the drainage basin of Lake Peipsi

被引：14

作者：

Loigu, E

Leisk, U

机构：

[1] Tallinn Technical University, EE-0001, Tallinn

来源：

HYDROBIOLOGIA | 1996年 / 338卷 / 1-3期

关键词：

water quality; sources of pollution load; organic matter; nutrients and their balance; river water quality classification;

D O I：

10.1007/BF00031708

中图分类号：

Q17 [水生生物学];

学科分类号：

071004 ;

摘要：

Water quality and general regularities that have taken place in the water quality of rivers in the drainage basin of Lake Peipsi have been studied. The lake is located in the basin of the Narva River. Several changes of the water quality of the lake in 1970-1990, caused by increasing human impact, have been observed. The water quality of Lake Peipsi depends on its pollution load whereby the main part of the pollution reaches the lake via rivers. In 1985-1989 an extensive research programme of the lake and its drainage basin was carried out. In this paper a part of these results as well as recent changes in the water quality of the rivers of the Estonian side are studied. Ln the last years an improvement of the general state of rivers in the drainage basin of Lake Peipsi has taken place; the content of organic substances and nutrients in the inflows of Lake Peipsi and in the Narva River (lake outflow) is decreasing.

引用

页码：25 / 35

页数：11