Modelling soil erosion and runoff for a super typhoon event using PCRaster
نویسندگان
چکیده
منابع مشابه
Investigating the Effect of Surface Gravel Cover on Runoff and Soil Erosion with Simulating Runoff
Surface gravel cover is an important factor for contoroling of soil erosion in dry area specially in area that plant can not grow because of excessive dryness and salinity. The objective of this study was investigation effect of different surface gravel cover on runoff and sediment yeild. For this porpose, 36 field plots with 20 meter length and 0.5 meter width at 3 percent slope were construct...
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Forestry operations can significantly alter hydrological and erosional processes in a catchment. In the course of developing timberland, a network of persistent roads and skid trails causing soil compaction is usually established. Hereby, the infiltration rate of the soil is distinctly reduced, which leads to the generation of overland flow—this may also cause soil erosion. In this study, a sma...
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The rate of erosion is the product of the concentration of active soil aggregates and their mean vertical velocity. The sediment concentration for a given time is proportional to the probability of detachment of first-time mobilized soil aggregates and to the probability of the deposited sediments’ redetachment. The probability of soil aggregate activation is equal to the probability of the dri...
متن کاملQuantitative assessment of agricultural runoff and soil erosion using mathematical modeling: applications in the Mediterranean region.
Three mathematical models, the runoff curve number equation, the universal soil loss equation, and the mass response functions, were evaluated for predicting nonpoint source nutrient loading from agricultural watersheds of the Mediterranean region. These methodologies were applied to a catchment, the gulf of Gera Basin, that is a typical terrestrial ecosystem of the islands of the Aegean archip...
متن کاملTransport Time Scales in Soil Erosion Modelling
I. G. Lisle 1, G. C. Sander 2*, J.-Y. Parlange 3, C.W. Rose 4, W. L. Hogarth 5, R. D. Braddock 4, 2 F. Stagnitti 6, D. A. Lockington 7, S. Jomaa 8, M. Cheraghi 9, D. A. Barry 9 3 1 Deceased 4 2 School of Civil and Building Engineering, Loughborough University, Loughborough, LE11 3TU United 5 Kingdom. Ph. +44 (1509) 223-777. [email protected] 6 3 Department of Biological and Environmental Eng...
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ژورنال
عنوان ژورنال: Journal of Maps
سال: 2020
ISSN: 1744-5647
DOI: 10.1080/17445647.2020.1841037