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The environmental impact of irrigation relates to the changes in quantity and quality of soil and water as a result of irrigation and the subsequent effects on natural and social conditions in river basins and downstream of an irrigation scheme.
The environmental impact of irrigation relates to the changes in quantity and quality of soil and water as a result of irrigation and the subsequent effects on natural and social conditions in river basins and downstream of an irrigation scheme.
The environmental impact of agriculture is the effect that different farming practices have on the ecosystems around them, and how those effects can be traced back to those practices. [1] The environmental impact of agriculture varies widely based on practices employed by farmers and by the scale of practice.
The environmental impact of reservoirs comes under ever-increasing scrutiny as the global demand for water and energy increases and the number and size of reservoirs increases. Dams and reservoirs can be used to supply drinking water , generate hydroelectric power , increase the water supply for irrigation , provide recreational opportunities ...
These chemicals may also enter runoff from crop residues, irrigation water, wildlife, and atmospheric deposition. [3]: p. 2–9 Farmers can develop and implement nutrient management plans to mitigate impacts on water quality by: mapping and documenting fields, crop types, soil types, water bodies; developing realistic crop yield projections
One environmental impact has been the reduction in native fish stocks above the dams. The majority of fish in the Columbia basin are migratory fish like salmon, sturgeon and steelhead. These migratory fish are often harmed or unable to pass through the narrow passages and turbines at dams.
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Impacts Before 15,000 BP: Minimal effects: Use of fire and gathering of plants and aquatic resources After 15,000 BP: Minor effects: Increased cultivation, plant and animal domestication: After 9800 BP: Agricultural era: Legacy sediments, widespread fire use, first dams and irrigation, mud-brick manufacture After 6500 BP: Irrigation era
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