Ecological Risk Assessment of Typical Plateau Lakes

Plateau lakes have significant ecological value. With economic development, lake pollution and degradation become increasingly prominent. There are many risk assessment methods. This article combines four different methods including single-factor index, geological accumulation index method, potential load method to analyze the heavy metal in Yangzong seabed mud as comprehensively possible. It shows that results obtained by slightly different. The overall trends of similar. In terms time, except for two elements mercury cadmium, contents other metals 2019 lower than 2018, indicating has decreased 2019; from perspective spatial distribution, level on south side Yangzonghai was higher central northern regions . On whole, whether it is or appropriate areas Yangzonghai, area least pollution.