Question

What are the adverse effects of modern farming methods and tube well irrigation on land?​

Answer 1

Answer:

Adverse impacts

1. Reduced river flow.
2. Increased groundwater recharge, waterlogging, soil salinity.
3. Reduced downstream river water quality.
4. Affected downstream water users.
5. Lost land use opportunities.
6. Groundwater mining with wells, land subsidence.
7. Case studies.
8. Reduced downstream drainage and groundwater quality.

Explanation:

Answer 2

Answer:

The environmental impacts of irrigation relate to the changes in quantity and quality of soil and water as a result of irrigation and the effects on natural and social conditions in river basins and downstream of an irrigation scheme. The impacts stem from the altered hydrological conditions caused by the installation and operation of the irrigation scheme.

The first environmental impact is increased crop growth such as in the Rubaksa gardens in Ethiopia

File:Crop Irrigation Is Closely Tied to Groundwater Depletion Around the World.webmPlay media

The irrigation that grows crops, especially in dry countries, can also be responsible for taxing aquifers beyond their capacities. Groundwater depletion is embedded in the international food trade, with countries exporting crops grown from overexploited aquifers and setting up potential future food crises if the aquifers run dry.

Explanation:

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