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27/12/2021 6:03 pm
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Among the ecosystem services are control of floods and soil erosion. How is this achieved by the biotic components of the ecosystem?
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27/12/2021 6:04 pm
(i) Control of soil erosion: Plant roots hold the soil particles tightly and do not allow the topsoil to be drifted away by winds or moving water. Plants increase the porosity and fertility of the soil.
(ii) Control of floods: It is carried out by retaining water and preventing runoff rainwater. Litter and humus of plants function as sponges thus, retaining the water which percolates down and gets stored as underground water. Hence, the flood is controlled.