Flow elements are not only an important force for the temporal differentiation and reorganization of rural vulnerability,but also an important perspective in the study of urban and rural reconstruction.By constructing a social-ecological system vulnerability evaluation indicator system of"sensitivity-adaptability",the dynamic change characteristics of vulnerability and the impact of flow factors of 184 administrative villages in Qingpu District of Shanghai Municipality from 1998 to 2018 were analyzed by means of sequential polygonal area method,spatial exploration and analysis,and fixed effect...