基于Tennant法的塔里木河河道基流生态需水量计算

Calculation of ecological water demand for base flow of Tarim River based on Tennant method

塔里木河水资源矛盾突出,为了确保塔里木河中游生态需水量,本文分析了塔里木河基本概况,以阿拉尔、英巴扎和恰拉水文站断面为研究对象,采用定额法对塔里木河中游河道水面蒸发进行了研究,采用Tennant法对塔里木河河道生态需水量进行计算,提出塔里木河干流阿拉尔、英巴扎和恰拉站河道生态需水量分别为13.58亿m^(3)、8.97亿m^(3)和3.16亿m^(3),该方法为生态基流分析计算提供了依据。

In order to ensure the ecological water demand in the middle reaches of the Tarim River,this paper analyzes the basic situation of the Tarim River,taking the cross sections of the Alar Station,Yingbazha Station and Chara Hydrologic Station as the research object,the water surface evaporation of the middle reaches of the Tarim River is discussed by using the quota method,and the ecological water demand of the Tarim River is calculated by using the Tennant method,the results show that the ecological water demand of the main rivers in Tarim River is 13.58 million m^(3),897 million m^(3) and 316 million m^(3),respectively.