JOIN our WhatsApp groupKCSE Form Four Geography Notes – KCSE Syllabus Form Four Geography Notes
Land reclamation is the practice by which less useful land is converted into more useful land. This can be done through draining of swamps, irrigating dry land, control of pests from an area and draining a portion of the sea.
Land rehabilitation is the process of recovery of land which has been misused and destroyed through Human activities such as quarrying, overgrazing, deforestation and over cultivation. This can be done through planting of vegetation, making terraces, adding manure or filling up quarries.
Physical requirements for irrigation farming in Kenya
a) Gently sloping land that allows flow of water by gravity
b) Presence of permanent rivers that provide regular and abundant water supply
c) Availability of extensive land for land-scale cultivation of crops
d) Availability of soils rich in mineral nutrients to support a variety of crop.
e) Black cotton soils that retain water for a long period
f) Warm weather suitable for growing of crops
g) Some areas are semi- arid e.g. perkerra making it necessary to practice irrigation farming
