What is the importance of plants for the soil?

Soil formation begins with the settlement of the first plant forms (lichens and mosses) on rocks. These plants begin to destroy solid rocks and after a long time, rudiments of soil begin to form on them. After that, other plants appear on such a cover (herbs, small bushes, etc.). After the formation of the soil, the plants also play an important function. Dead particles of grass, roots, leaves and branches are transformed into humus, and humus, in turn, ensures soil fertility.