نتایج جستجو برای: and erosion

تعداد نتایج: 16832055  

2016
Xiao Li Xiang Niu Bing Wang Peng Gao Yu Liu

Dynamic change in soil erosion is an important focus of regional ecological restoration research. Here, the dynamic changes of soil erosion and its driving forces in the Dahei Mountain ecological restoration area of northern China were analyzed by LANDSAT TM remote sensing captured via geographic information system (GIS) technologies during three typical periods in 2004, 2008 and 2013. The resu...

ژورنال: آبخیزداری ایران 2022

Prioritization of different regions at watersheds based on the erosion rate and sediment yield with approach of its economic effects can lead to the production of valuable information for projects of soil conservatism. The present study aim was sub-watersheds prioritization of Kan watershed based on erosion condition with the approach of economic losses from erosion and sediment. Therefore, the...

Journal: :journal of rangeland science 2014
farhad nourmohammadه taher fatollahه javad mirzaei karim soleimani mahmoud habibnejhad roshan

erosion is one of the important social-economic problems in iraniancatchments that have been posed by surface water vastness and runoff production. so, thestudy of water resources, soil erosion and effective factors is of high importance. gullyerosion also extends in many parts of iran and its study particularly in viewpoint ofsediment yield is therefore very important and should be taken into ...

Journal: :اکو هیدرولوژی 0
ناصر طهماسبی پور استادیار گروه مرتع و آبخیزداری، دانشکدۀ کشاورزی، دانشگاه لرستان، خرم‏آباد امید رحمتی دانشجوی دکتری علوم و مهندسی آبخیزداری، دانشگاه لرستان، خرم ‏آباد سمیرا قربانی نژاد دانشجوی کارشناسی‏ ارشد مهندسی آبخیزداری، دانشگاه لرستان، خرم ‏آباد

gully erosion constitutes a major problem in natural resources management and soil conservation, which causes severe land degradation in arid and semi-arid areas. therefore, determination of gully prone area and identification of gully conditioning factors can help to managers and decision makers to reduce the hazard of gully erosion. the aim of this study is to predictthe gully erosion suscept...

B.S Mosavi M Saneie

River banks are exposed to bank erosion and destruction. One of the river engineering goals is to provide human life requirements and reduce river danger. So spreading extent of this phenomenon, whose risk and other important factors must be recognized. Using groins is one of the control ways that by accurate design and accurate performance, bank erosion control and field reclamation would be p...

Soil erosion by wind is a widespread problem in the arid lands of Iran. This research estimated and assessed the severity of wind erosion in Segzi desertification hotspot located in the eastern part of Isfahan township, focusing on criteria used in the IRIRF (Iranian Research Institute of Forest and Rangelands) model. Bayesian belief networks (BBNs) were also used to convert the IRIFR model to ...

Journal: :مرتع و آبخیزداری 0
علی گلکاریان استادیار دانشکدة منابع طبیعی و محیط زیست دانشگاه فردوسی داود داودی مقدم دانشجوی کارشناسی ارشد آبخیزداری دانشکدة منابع طبیعی و علوم دریایی دانشگاه تربیت مدرس سید امیر نقیبی دانشجوی کارشناسی ارشد آبخیزداری دانشکدة منابع طبیعی و علوم دریایی دانشگاه تربیت مدرس مسعود عشقی زاده دانشجوی دکتری آبخیزداری، دانشکدة منابع طبیعی و کویرشناسی دانشگاه یزد

soil erosion is undoubtedly one of the most important problems in natural areas and has a devastating impact on grassland ecosystems. the present study was conducted to assess the ability of rangeland hydrology and erosion model for estimating sediment yield on rangeland’s hill slopes in dry regions at shahid noori paired watershed of kakhk. rhem is a mathematical, distribution and physical mod...

2016
M. Stack F. Stott G. Wood

The modes of erosion-corrosion are diverse and may vary from being "erosiondominated", where erosion of metal is the dominant process, to "corrosion-dominated", where erosion of oxide scale is the dominant process. The intermediate situation in which erosion of transient oxide is the predominant process is termed "erosion-corrosion-dominated" and describes the regime in which continual formatio...

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