Water environment quality evaluation method based on reservoir dam data

The invention discloses a water environment quality evaluation method based on reservoir dam data. The method comprises the following steps: acquiring reservoir dam database data, and calculating river connectivity according to the acquired data; carrying out regression analysis on the river connectivity, a vegetation net primary productivity index and a water body biodiversity index, and establishing a multi-term 1ogit regression model between the river connectivity and the two indexes; and inputting a river length and the number of dams into the established regression model, and calculating the water ecological drainage basin quality of a river region. According to the method, the river connectivity is calculated according to database data of a global reservoir dam, then regression analysis is carried out on the river connectivity and the two indexes of vegetation net primary productivity (NPP) and biodiversity, a regression model between the river connectivity and the two indexes is determined, finally, ef