| چکیده انگلیسی مقاله |
Land surface cover affects on runoff production. Due to the time variation of sediment concentration and runoff volume during storms, and on the other hand, the lack of control and study of storms in field conditions for analyzing hydrographs and sedimentgraphs changes in different soil moistures, the investigation of these variables has special importance in laboratory conditions. Nowadays, miscellaneous conditioners are being applied to conservation of water and soil at worldwide. Therefore, the use of soil conditioners is essential for soil and water conservation. Then, the present study conducted with study aim of effect of soil conditioners of vermicompost and nano-manure with rates of 24 and 6 g.m-2, respectively, on variables changing runoff and sedimentgraph at moistures of air-dried, 15 and 30% and rainfall intensities of 50 and 90 mm.h-1. The obtained results in addition to confirmation of the significant effect of each conservation treatment at the level of 99 percent on runoff components showed that the conservation treatment of vermicompost compared to nano-manure treatment had the more effect on measured variables. Vermicompost treatment could increase the time to runoff at soil moisture air-dried, 15 and 30 percent with rates of 33.69, 104.22 and 135.52 percent (rainfall intensity of 50 mm.h-1), respectively, and 92.78, 111.63 and 406.66 percent (rainfall intensity of 90 mm.h-1), respectively. The treatments effect on changing runoff volume were decrease, the runoff volume reduced with rates of 44.84, 50.00 and 49.55 percent (rainfall intensity of 50 mm.h-1), respectively, and 42.31, 32.73 and 35.23 percent (rainfall intensity of 90 mm.h-1), respectively. Also the results showed that the vermicompost and nano-manure conditioners toward control treatments had significant effect on hydrograph and sedimentograph changes. Therefore, due to the widespread use of different types of conditioners, today need to move the application feasibility of conditioners for example vermicompost and nano-manure that these have not the adverse effects of environmental. |
