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Pores (the spaces that exist between soil particles) provide for the passage and/or retention of gasses and moisture within the soil profile.The soil's ability to retain water is strongly related to particle size; water molecules hold more tightly to the fine particles of a clay soil than to coarser particles of a sandy soil, so clays generally retain more water. [2]
The rows formed slow surface water run-off during rainstorms to prevent soil erosion and allow the water time to infiltrate into the soil. Soil conservation is the prevention of loss of the topmost layer of the soil from erosion or prevention of reduced fertility caused by over usage, acidification, salinization or other chemical soil contamination
Soil and Water Conservation Society (SWCS) is a nonprofit scientific and educational organization. They advocate for science-based practice, programs, and policy and conservation professionals. [19] The Nature Conservancy protects the land and water in order to preserve the plants, animals, and natural communities. [20]
Surface runoff (also known as overland flow or terrestrial runoff) is the unconfined flow of water over the ground surface, in contrast to channel runoff (or stream flow).It occurs when excess rainwater, stormwater, meltwater, or other sources, can no longer sufficiently rapidly infiltrate in the soil.
Soil containing high levels of organic materials are often more resistant to erosion, because the organic materials coagulate soil colloids and create a stronger, more stable soil structure. [45] The amount of water present in the soil before the precipitation also plays an important role, because it sets limits on the amount of water that can ...
where water tables are shallow, the irrigation applications are reduced. As a result, the soil is no longer leached and soil salinity problems develop; stagnant water tables at the soil surface are known to increase the incidence of water-borne diseases like malaria, filariasis, yellow fever, dengue, and schistosomiasis (Bilharzia) in many ...
Water conservation aims to sustainably manage the natural resource of fresh water, protect the hydrosphere, and meet current and future human demand. Water conservation makes it possible to avoid water scarcity .
The effects of soil erosion can be lessened by means of various soil conservation techniques. These include changes in agricultural practice (such as moving to less erosion-prone crops), the planting of leguminous nitrogen-fixing trees, or trees that are known to replenish organic matter. [29] [31] Also, jute mats and jute geotextile nets can ...