Analysis of the causes of high salinity in Qingcaosha waters in winter from the perspective of water cycle

Qingcaosha waters are located in the lower reaches of the Yangtze River, belonging to the subtropical monsoon climate. In winter, there is less precipitation in the area, and the evaporation is greater than the precipitation, which leads to a rapid increase in salinity, which is always on the high side. This is due to the Qingcaosha waters are located in the lower reaches of the Yangtze River, belonging to the subtropical monsoon climate, precipitation shows obvious seasonality, summer precipitation is concentrated, evaporation is less than the amount of precipitation, salinity is not easy to rise, winter precipitation is less, evaporation is greater than the amount of precipitation, salinity rises faster and has been in a high state.