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Roots can survive waterlogging by forming aerenchyma, inducing anaerobic metabolism, and changing root system architecture. [14] In irrigated agricultural land, waterlogging is often accompanied by soil salinity as waterlogged soils prevent leaching of the salts imported by the irrigation water.
In the resource-poor drylands of the Sahel region of Africa, irrigation systems and chemical fertilizers are often prohibitively expensive and thus uncommon: so increasing or maintaining crop yields in the face of climate change depends on augmenting the region's extant rainfed agriculture systems to "increase water storage within the soil and ...
Zaï pit process Zaï in Batodi, municipality of Tajaé, Niger. Zaï or tassa is a farming technique of digging pits in less permeable soil to catch water and concentrate compost. [1]
waterlogging and drainage problems in villages, agricultural lands, and along roads - with mostly negative consequences. The increased level of the water table can lead to reduced agricultural production. shallow water tables - a sign that the aquifer is unable to cope with the groundwater recharge stemming from the deep percolation losses
Waterlogging or water logging may refer to: Waterlogging (agriculture), saturation of the soil by groundwater sufficient to prevent or hinder agriculture; Waterlogging (archeology), the exclusion of air from an archeological site by groundwater, preserving artifacts; Underwater logging, the process of harvesting trees that are submerged under water
Such a system is therefore called a checked, or controlled, drainage system. More usually, however, drainage systems are meant to function as regularly as possible to prevent undue waterlogging at any given time and it is this regular drainage system that is most often employed. In agricultural literature, this is sometimes also called a ...
Because these areas in Sub-Saharan Africa often suffer from unreliable crop production as a result of stemborers and striga, soil infertility, and unsustainable supplies of fodder, the push-pull solution to these problems is expected to be adopted by more smallholder farmers in the future at an annual adoption rate of 30% and a potential annual ...
One theory about the origin of the Sonjo people suggests they came from the Uru state of the Chagga states in Kilimanjaro. According to a story, during a battle for the Uru throne, those defeated by Mangi Mkuruo fled and settled northwest of Mount Meru. They have remained there to this day and are now known as the Sonjo. [3]