بررسی ارزیابی نقش مدیریت اراضی در فرسایش خاک

Factors that intlunces the amount of soil erosion are including : energy , resistivity and canservation. 1. Factors relaed to energy which caused erasion , are abality of rainfall, runoff anf wind. This abaJity so-called evasion power. 2. Major factOrs relative to resistivity are of soil erosivity are including phgsical , chemical properties of\oil infiltration capacity and soil management. 3. Factors related to conservation are included: population prsssure suitibility over land, planet cover ( farming plant, pasture and farest) sutibility of land (high exploition from land) and so on , that depends to land management . Two factors of energy and resistivity are out of the human control, but the operations of soil conservation need to be management that is effective in lass erasion. on the nasis of this investigation the utilization map of the area were prepared, and them the amount of erosion and sediment in each land type were determined using musle and mpsiac models. The most detractive land from in each land use type also were recognized and finalJy the differnces of the amount of erosion in land units with different methods were analized