Multidimensional Soil Erosion / Deposition
نویسندگان
چکیده
منابع مشابه
ارزیابی فرسایش خاک و رسوب حوزۀ آبخیز مندرجان با استفاده از مدلهای USPED و RUSLE در محیط سیستم اطلاعات جغرافیایی (GIS)
Introduction Water erosion is one of the most important factors in land degradation in large parts of Iran destroying fertile soils and agricultural land. The impact of soil erosion and related sediments decreases significantly water quality and reservoir capacity. Especially in semiarid areas like in the Menderjan watershed in the west Isfahan province sheet and rill erosion contributes to th...
متن کاملSpatial Variability of Soil Erosion and Soil Quality on Hillslopes in the Chinese Loess Plateau
Soil erosion rates and soil quality indicators were measured along two hillslope transects in the Loess Plateau near Yan'an, China. The objectives were to: (a) quantify spatial patterns and controlling processes of soil redistribution due to water and tillage erosion, and (b) correlate soil quality parameters with soil redistribution along the hillslope transects for different land use manageme...
متن کاملCaesium-137 as a Soil Erosion Tracer: a Review
This paper describes a method of soil erosion and soil movement measurements using 137Cs as a tracer. This technique has been used successfully employed for more than 30 years. Caesium-137 is a valuable tracer to study soil erosion. Its chemical and biological movement in soil is limited. Practically all redeposition of caesium-137 in soil after fallout occurs with soil particles due to strong ...
متن کاملSimulating the spatio-temporal dynamics of soil erosion, deposition, and yield using a coupled sediment dynamics and 3D distributed hydrologic model
Since soil erosion is driven by overland flow, it is fair to expect heterogeneity in erosion and deposition in both space and time. In this study, we develop and evaluate an open-source, spatially-explicit, sediment erosion, deposition and transport module for the distributed hydrological model, GEOtop. The model was applied in Dripsey catchment in Ireland, where it captured the total discharge...
متن کاملA Unified Framework for Water Erosion and Deposition Equations
detachment, and sediment deposition are considered simultaneously. This approach has received experimenTwo modeling frameworks have been developed to describe and tal support (Proffitt et al., 1991; Proffitt et al., 1993; predict soil erosion and sediment deposition in recent years. The first Huang et al., 1999; Heilig et al., 2001), and lays the is based on the concept of transport capacity. D...
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