一、水库的简要情况 丹江口水库的主要任务是防洪、发电、灌溉、航运和养殖业。汉江库区的水文、泥沙和水库的主要特征值见表1。汉江库区回水变动区河床和淤积纵剖面如图1所示。水库从1967年11月蓄水运用以来,运行情况如 First, a brief summary of the reservoir Danjiangkou reservoir’s main task is flood control, power generation, irrigation, shipping and aquaculture. The main characteristic values ​​of hydrology, sediment and reservoir in Hanjiang reservoir area are shown in Table 1. The riverbed and siltation profile of the backwater variation zone in Hanjiang Reservoir are shown in Fig.1. Since the reservoirs were used in November 1967, the operation of the reservoir has been underway