پديد آورندگان :
ترك نژاد، احمد نويسنده Torknezhad, A , آرياپور، علي نويسنده -دانشگاه آزاد اسلامي واحد بروجرد ariapour, ali
كليدواژه :
كاربري اراضي , فرسايش خاك , حاصل خيزي خاك , اراضي حاشيه اي
چكيده لاتين :
Leaching and removing soil nutrient elements are considered as the most harmful effects, caused by erosion which brings social and economic hazards. Erosion results from changing rangeland to other land uses. So knowing the amount of soil erosion can help us to estimate the unfavorable effects more correctly in order to plan strategic projects for sustainable development. Although the act of erosion and production of sediment vary from place to place, the process of rangeland change into dry land and its effects should be determined on erosion phenomenon. The aim of this study was to determine the change of soil properties such as sediment production and soil nutrient elements (macro and microelements) degradation caused by land use applications. The region under study was located in Kermanshah province. The statistical method applied was a Complete Randomized design with 5 treatments and 5 replication. The results showed that the maximum removal of soil nutrient elements occurred with effective rain falls and minimum vegetation cover. So the least and the most removal of nutrient elements in soil and sediment production in criteria and fallow were observed respectively. The treatment of grazed range, wheat cultivation, annual medic cultivation were set in between. Sediment production(Ton/Hec) and the removal of nutrient(Kg/Hec) as: organic Matters, Nitrogen, Potassium, Phosphor, Zinc, Iron, Maniazium and Cupper were as fallows 0.02, 1.84, 0.11, 0.008, 0, 0, 0, 0, 0, and 5.27,468.32,26.81,1.848,0.021,0.008,0.05, 0.079 and 0.01 in criteria treatment and fallow treatment. It makes sense to announce here that the protection of the plant cover in effective rain fall is regarded as a strategic issue. So to speak, if we have to cultivate in such lands, the plants with vast cover crown in maximum rain fall should be cultivated.
