Processes Of Soil Erosion And Aspects Of Community-based Soil Conservation In Grahutsa-korir Watershed In Eastern Tigray

Geography And Environmental Studies Project Topics

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Land degradation is a serious problem in Ethiopia in general and the studyrnarea in particular. The root causes of environmental degradations are humanrnand animal population pressure and urbanization in the past 40 years. Andrnthis means high demand of wood for fuel and construction, and land forrnfarming and grazing. Land in general and vegetation in particular is totallyrndegraded natural vegetation is left towards the churchyards. In addition tornthese soil types, slope and topography leads to soil erosion. As much as 53.56%rnof the study area has slope 36.4% or above. There are different gullies with arntotal length of above 15 kms and average depth of 2.29 m and a width of 10.67rn____ -"m""; indicating these that more than 371.858 m3 of soil is lost in the past years.rnThese and other factors averagely are responsible for the loss of greater thanrn183,186 tons of soil every year in the study catchment.rnEfforts, no doubt, are tried by Governmental and Non- GovernmentalrnOrganizations to check such degradations, but reports (Pender, 1999) inrngeneral point out towards their total or partial failures. This was due to littlernor no mobilization of the local community, insufficient or lack of maintenancernand the lack of appropriate environmental policies, which are still prevalent inrnthe area. Scenario in that formerly constructed dams are almost silted andrnbreached, vegetation are almost weathered, agricultural yield is diminishing,rnwater supply is reduced and the like. Even the conservation measures that werernintroduced previously lacked follow -up. The ever-increasing demand forrnvegetation products adversely affects the vegetation cover. In the recentrnconservation measure the local communities are participating and thernpreservation of indigenous plants are becoming very effective due to theirrnadaptability to the harsh environment.rnGrahutsa-Korir catchment, which is part of Genfel catchment, is highlyrndegraded. One can observe in the catchment large stretches of bare land andrndissection with intense gully formations especially in the sandstone part of therncatchment, but it is in the limestone formations with their topsoil where thernnew integrated watershed managements are being practiced mainly to reducernsiltation of the new earth dam. Community mobilization today is better, theyrnparticipate in all the steps from programming to execution, use, maintenance,rnetc so they are highly concerned with the conservation reasons but for its lowrnfinancial allotment by the government. The crack of the problem is that thernbudget allotted is too low to cover greater area.

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Processes Of Soil Erosion And Aspects Of Community-based Soil Conservation In Grahutsa-korir Watershed In Eastern Tigray

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