نتایج جستجو برای: river bank erosion

تعداد نتایج: 173346  

2008
S. J. BIRKINSHAW J. C. BATHURST

The SHETRAN physically based, spatially distributed model is used to investigate the scaling relationship linking specific sediment yield to river basin area, for two contrasting topographies of upland and more homogeneous terrain and as a function of sediment source, land use and rainfall distribution. Modelling enables the effects of the controls to be examined on a systematic basis, while av...

2009
David P. Groeneveld

Groundwater is closely coupled with stream­ flow to maintain water supply to riparian vegetation, parti­ cularly where precipitation is seasonal. A case study is presented where Mediterranean climate and groundwater extraction are linked with the decline of riparian vegeta­ tion and subsequent severe bank erosion on the Carmel River in Carmel Valley, California.

Journal: :اکو هیدرولوژی 0
مجید خزایی دانشجوی دکتری آبخیزداری دانشگاه هرمزگان احمد نوحه گر استاد دانشکدۀ محیط زیست دانشگاه تهران رسول مهدوی نجف آبادی عضو هیئت علمی آبخیزداری دانشگاه هرمزگان عبدالرسول تلوری سازمان جنگل‏ها و مراتع و آبخیزداری کشور

the vital need for river management is understood and predict of bank erosion processes. almost models will not be able to evaluate bank erosion,accurately. bstem model is the most usable model in many of river engineering projects in the world. necessary data for this model are related to driving and resisting forces controlled by hydraulic and geotechnical processes. these data include geomet...

جعفرپور, زین العابدین, جمالی, میثم, مقیمی, ابراهیم, کردوانی, پرویز,

The process of urbanization and development in high-risk areas such as river banks has increased the vulnerability of urban communities to environmental hazards. The banks of Khoshk River in Shiraz is one of these areas. These hazards are two parts : hazards resulted from river and waterways erosion (destruction, transportation and sedimentation) and the hazards resulted from floodings over the...

2013
T. L. Midgley G. A. Fox G. V. Wilson D. M. Heeren E. J. Langendoen

The effects of seepage on streambank erosion and failure are less understood compared to fluvial processes, especially the linkage between surface water and groundwater mechanisms. Field data are needed to validate laboratory seepage erosion and instability conclusions and to understand how engineering tools and methods may be applied to field conditions. An innovative trench injection system w...

2001
Mike Bishop

2. These records principally refer to cropmarks and finds. The only upstanding remains are a henge monument at Gunthorpe 1 and some of the 6 earthworks included amongst the 24 and 14 sites which are respectively categorised as round mounds and round barrows. Evidence about landscape comes primarily from palaeoenvironmental data within deposits in river channels and alluvium which ranges from po...

2012
S. Acharjee J. N. Sarma

Introduction Conclusions References Tables Figures Back Close Full Screen / Esc This discussion paper is/has been under review for the journal Earth System Dynamics (ESD). Please refer to the corresponding final paper in ESD if available. Abstract Introduction Conclusions References Tables Figures Back Close Full Screen / Esc Abstract The Kaziranga National Park is a forest-edged riverine grass...

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