Why can forests conserve water and protect soil and water?

Forests are mostly woody plants, and their roots are straight roots, that is, the ground trunk is inverted and unfolded. Such roots can keep soil and reduce soil erosion. More water is accumulated in the soil, which can keep water and soil.

Of course, the transpiration of plants also accelerates the water circulation in the forest and its nearby microenvironment, resulting in a humid climate and a lot of rainfall, which is also very beneficial to water conservation.