نتایج جستجو برای: erosivity
تعداد نتایج: 371 فیلتر نتایج به سال:
Erosion process occurs naturally, shaping the Earth’s surface. Soil loss can cause harmful effects to environment when intensive anthropic activities occur. Mathematical models have been used as effective and less costly alternatives for identifying sites highly prone soil loss, especially at watershed scale. In Brazil, Revised Universal Loss Equation (RUSLE) is one of most commonly prediction ...
The Western Balkans (WB) region is highly prone to water erosion processes, and therefore, the estimation of rainfall erosivity (R-factor) essential for understanding complex relationships between hydro-meteorological factors soil processes. main objectives this study are (1) estimate spatial-temporal distribution R-factor across WB by applying RUSLE RUSLE2 methodology with data period 1991 202...
The summer season raindrop size distribution (DSD) characteristics and their important applications, based on a PARSIVEL2 disdrometer installed in Zhaosu over the western Tianshan Mountains, China, 2020–2021 are studied. Our analysis reveals that, for total rainfall different types, DSD follows normalized gamma model, convective has higher concentration than stratiform at all diameters. For rai...
Soils (Leptosols or Epileptic Regosols) with lithic contact at a depth of 50 cm occupy almost 20% the Brazilian semi-arid region. These soils are susceptible to erosion due faster saturation water-holding capacity during rainfall, which accelerates beginning runoff. However, traits in region Brazil less studied. The aim this study was characterize soil and landscape attributes areas Neossolos L...
Recently, in the Auerswald et al. (2015) comment on "Rainfall erosivity in Europe", 5 criticisms were addressed: i) the neglect of seasonal erosion indices, ii) the neglect of published studies and data, iii) the low temporal resolution of the data, especially of the maximum rain intensity, iv) the use of precipitation data instead of rain data and the subsequent deviation of the R-factor in Ge...
Abstract. Rainfall erosivity quantifies the effect of rainfall and runoff on rate soil loss. Maps are needed for erosion assessment using Universal Soil Loss Equation (USLE) its successors. To improve maps that currently available, hourly daily data from 2381 stations period 1951–2018 were used to generate new R-factor 1-in-10-year event EI30 mainland China (available at https://doi.org/10.1227...
Sustainable soil environment along with available water resources is critical for food security and agricultural productivity. The Korea territory consists of 65% mountainous topography the variability rainfall rapidly increasing due to climate change, thereby a risk erosion. Soil erosion by has been estimated using empirical equations accumulated data over time in U.S. since 1930 s, representa...
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