Methods of land reclamation and rehabilitation in Kenya

METHODS OF LAND RECLAMATION AND REHABILITATION IN KENYA

Drainage of swamps

This is a method of reclaiming marshy or waterlogged land by removing excess water or lowering the water table.

METHODS OF LAND RECLAMATION AND REHABILITATION IN KENYA
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The water flows away by gravity through ditches into other
drainage systems like rivers or canals. The reclaimed land can be used for farming or settlement. E.g reclamation of Yala and Bunyala swamps.




Irrigating land

This is the artificial method of supplying water to a region which does not receive adequate rainfall to meet crop moisture requirement.

The amount of water needed for irrigation depends on the type of crop and nature of the soil and land elevation. Rolling terrain is the most suitable for irrigation

Control of pests

Insect pests like tsetse flies are controlled through bush clearing, trapping, spraying and sterilization of the males.

This has successfully been carried out in Lambwe Valley.

Mosquitoes are controlled through fumigation and draining stagnant water, spraying and clearing of bushes near settlements.




Rodents, birds, porcupines and squirrels are controlled by trapping, poisoning, hunting or scaring them away.

Rehabilitation of quarries

Quarries may be filled up with rocks and topped with fertile soil, making them suitable for farming and settlement. E.g Bamburi Nature Trail where trees and animals have been introduced after rehabilitation.

Afforestation and Reafforestation.

Afforestation is the process of planting trees in an area where there has never been trees. Reafforestation is the replacement of cut trees with new seedlings.

The government has taken an initiative of rehabilitating areas where indigenous forests have been destroyed in the process of charcoal burning and felling of trees for timber.

Such areas include Mount Kenya region, Rift Valley Western and the coast. Also, belts of drought-resistant trees have been grown at the edge of semi-arid areas to consolidate the efforts to rehabilitate the land.




Rehabilitation of eroded landscape.

Construction of terraces, strip cropping, contour farming and planting cover crops are the methods used to rehabilitate eroded areas in Nyambene, Kisii and Muranga. Building gabions is undertaken in Baringo, Machakos and Kisii Counties.

Agro forestry

This is the practice of planting trees, such as graveria, alongside crops, within a farm to protect the soil from erosion and enrich it. Agro-forestry is commonly done in most parts of Kenya.

Control of floods

This are controlled through building of dykes, dams, diversion canals, building embankments, dredging, channel widening and planting vegetation to reduce surface run-off.

This is practiced in Budalangi along river Nzoia, Tana Delta and Kano Plains along river Nyando.




Planting drought-resistant crops.

Application of manure and fertilizer

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