松花江重污染支流伊通河河道生态需水研究

以松花江重污染支流伊通河为研究区,在确定生态环境需水量构成的基础上,运用Tennant法、一维水质模型等研究方法核算了伊通河河道生态环境年需水量,分析了河道生态环境需水量的盈缺状况。结果表明,伊通河伊通站和农安站生态环境常年存在不同程度缺水,其中伊通站年均缺水量为0.13亿m3,农安站年均缺水量为0.55亿m3。研究旨在为松花江流域水资源的优化配置和生态环境功能的恢复提供依据。

Study on eco-environmental water requirement of Yitong River channel,a heavily polluted tributary of Songhua River

The Tennant method and a one-dimensional water quality model were used to estimate the eco-environmental water requirement of the Yitong River,a heavily polluted tributary of the Songhua River,based on defining the composition of the eco-environmental water requirement in this study.The surplus/deficit analysis of the eco-environmental water requirement of the Yitong River was conducted.The results show that there existed a shortage of eco-environmental water at Yitong and Nong'an hydrological stations,and the annual shortage was 0.13 × 108m3 and 0.55 × 108 m3 respectively,for Yitong and Nong'an hydrological stations.This study provides a scientific basis for optimal allocation of water resources and restoration of the ecological environment in the Songhua River Basin.