نتایج جستجو برای: in the universal soil loss equation usle

تعداد نتایج: 21291602  

2004
J. Skousen J. Sencindiver

Fluvial processes and channel development on landscapes have recently received more attention as designers attempt to establish or replace natural streams on disturbed or degraded sites. Several approaches using similar parameters have been developed to evaluate stream development and erosion processes on natural soils and landscapes. Such approaches include the Manning’s and stream power equat...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه پیام نور - دانشگاه پیام نور استان تهران - دانشکده علوم انسانی 1390

in the new age, in regard to human success in education in the globalizing world, one can consider english proficiency and individual differences as two important issues. in efl settings, reading skill plays an important role in education. it seems that using multiple intelligences theory in efl classes which values individual differences by tapping different intelligences, can be rewarding. as...

2007
Roger McHenry

Radioactive fallout 137CS (cesium-137) deposited across the landscape from atmospheric nuclear tests is strongly absorbed on soil particles limiting its movement by chemical and biological processes. Most 137CS movement in the environment is by physical processes; therefore, 137CS is a unique tracer for studying erosion and sedimentation. Cesium-137 loss from a watershed has been shown to corre...

2007
M. H. HUSSEIN M. M. AWAD A. S. ABDUL-JABBAR

Estimation of soil loss from single storm events is essential for basin planning and nonpoint source pollution control. Rainfall-runoff erosivity factors for single storm events in northern Iraq were derived from the basic theory of soil detachment and transport. The factors derived are a single parameter which includes runoff depth only and a factor which combines runoff depth and peak rate. T...

2009
Ioannis Z. Gitas Kostas Douros Chara Minakou George N. Silleos Christos G. Karydas

The aim of this work was to test a modified version of the Universal Soil Loss Equation (USLE) for assessing the risks of erosion in N. Chalkidiki, Greece. USLE estimates the severity of erosion, thus assisting the decision process in selecting erosion control measures. Although USLE has several limitations, it was selected because it is the simplest approach while remaining robust, and it part...

Journal: :Journal of Water Resource and Protection 2022

This paper will discuss the actual erosion estimation of Patria Nueva micro basin in tons/ha/year (E), located Tuxtla Gutiérrez Chiapas, Mexico. We used universal soil loss equation (USLE), considered one best theoretical tools for planning and preservation USA other countries. The rates were estimated 5, 20, 50, 100, 500 years return periods (Rp), with elevated results due to high degrees anth...

Journal: :Land 2023

Ridge and furrow fields are land-use-related surface structures that widespread in Europe represent a geomorphological key signature of the Anthropocene. Previous research has identified various reasons for intentional unintentional formation these structures, such as use mouldboard plough, soil improvement drainage. We used GIS-based quantitative erosion modelling according to Universal Soil L...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه سیستان و بلوچستان - دانشکده مهندسی شیمی 1391

there is no doubt that human being needs to become integrated with industry and industry needs to be progressed, daily. on the other hand, serious events in industrial units specially in oil industries has been shown that such damages and events are industry related ones. the consequence of such events and damages which resulted in chemical and poisoned explosions and loss of life and property ...

Journal: :Land 2021

Uncontrolled deforestation and land clearing for agricultural, urban development, infrastructure construction without considering cover management (C&P) factors have resulted in severe soil erosion over the surface of Cameron Highlands state Pahang, Malaysia. Thus, this study determines C&P Universal Soil Loss Equation (USLE) to forecast loss risk. Land use recorded by PLANMalaysia Depa...

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