Ahmad Noheghar; Mohamad Kazemi; Seyyed Javad Ahamdi; Hamid Gholami; Rasool Mahdavi
Volume 4, Issue 10 , June 2017, , Pages 99-119
Abstract
Soil management is necessary in order to optimize utilization and decrease degradation. The present study aimed to measure the relative importance of the erosion rates and sediment yields of homogeneous units in land-uses and geological formations. Accordingly, Fargas, BLM models, and direct field measurements ...
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Soil management is necessary in order to optimize utilization and decrease degradation. The present study aimed to measure the relative importance of the erosion rates and sediment yields of homogeneous units in land-uses and geological formations. Accordingly, Fargas, BLM models, and direct field measurements of soil erosion were used. Then, the degree of homogeneous units' erosion on the map of land use and geology formation were extracted. In addition, the amount of the sediment caused by surface erosion, rill, and gully was measured. The total mean of sediments per land use and the geology information were measured. The areas including the participation of each of the produced sediments were also found. The results revealed that the highest amount of the sediment deposits in basin were for the range lands called B S33R42G21, C S34R43G32, and D S34R43G32 with the mean of 38.73(ton/ha) and for the Razak Information called C S43R42G21 and D s44R43G32 with the mean of 17.83(ton/ha). The highest amount of sediment deposits were also for the rangelands and Asmari formation, respectively, with the means of 64.9% and 55.43%. Bakhtyari formation and cultivation, in contrast, had the lowest relative importance in sediment yield of the Tange Bostanak watershed.
