Causes of water level drop in Hongze Lake

Natural causes: 1. Hongze Lake basin belongs to monsoon climate and is unstable. There is less precipitation in Hongze Lake basin this year;

2. At the turn of spring and summer, the rainy season in Hongze Lake basin has not yet arrived, and the temperature rises rapidly, which leads to intensified evaporation;

Hongze Lake belongs to Huaihe River Basin. The overall precipitation in Huaihe River basin is less, and the water level of Huaihe River drops, which leads to the recharge of Huaihe River water and groundwater by Hongze Lake and the loss of water.

Man-made reasons: 1 At this time, it is in the growing season of wheat and rice, and the crop water demand is large, and the agricultural water consumption is large;

2. In addition, Hongze Lake Basin is relatively developed in industry, with dense population and large industrial and domestic water consumption.

3. The vegetation in Hongze Lake basin is seriously damaged, which leads to serious soil erosion, sediment deposition and reduced water storage capacity.