Explain the reasons for the monthly change of Ebinur Lake area.

(1) The slope in the northwest and southwest of the lake bottom is relatively small (or the slope in the west is relatively small); It is steep in the northeast and southeast (or steep in the east).

(2) Ebinur Lake belongs to an internal flow lake, and the rivers entering the lake are mainly replenished by glacial meltwater and a small amount of precipitation. In recent years, due to climate warming, glacial meltwater and precipitation have increased, resulting in an increase in the total runoff in the basin; With the increase of population along the river and the expansion of cultivated land, the consumption of water resources intensifies, resulting in a decrease in the amount of water entering the lake; The change of Ebinur Lake, the influence of human activities exceeds the influence of climate change, so the lake is shrinking.

(3) The shrinking of the lake surface leads to more drought in the surrounding areas, intensified evaporation, and intensified desertification and land salinization; The lake bed is exposed, adding new sand sources and frequent sandstorms; The temperature difference in the surrounding area increases; The ecological environment of the lake is destroyed and the biodiversity is reduced; Vegetation decreases and windy days increase.