Vegetation water conservation is to increase the interception and infiltration of forest by expanding the coverage of forest, so that water will not flow into rivers too much, but through the storage and infiltration of vegetation, the amount of groundwater will be increased and the occurrence of floods will be reduced.

The function of forest water conservation is manifested in many aspects, but mainly in the following aspects: water storage function, runoff regulation function, forest flood cutting and drought resistance function and forest water purification function. Forest water conservation is mainly manifested in the redistribution of precipitation in time and space through interception, absorption and infiltration, reducing invalid water and increasing effective water.

Extended data:

Water conservation capacity is closely related to vegetation type, coverage, litter composition, soil layer thickness and soil physical properties. Vegetation can conserve water for the following reasons:

1, the canopy intercepts rain (snow) water;

2. The litter layer absorbs water;

3. Soil infiltration and precipitation in forest land.

In addition, the forest also has the function of narrowing the temperature difference, easing the climate change and increasing the air humidity. Planting trees and grass should pay attention to local conditions and strengthen management. The effect of planting trees and grass in many areas is not obvious, and the key is to ignore the basic conditions for plants to choose ecological environment.

Baidu Encyclopedia-Saving Water