نتایج جستجو برای: specific sediment yield

تعداد نتایج: 1246681  

Journal: Pollution 2015

A comprehensive evaluation of the residual levels of Organochlorine insecticides (OCIs) in the sediment cores of Cochin Estuarine System (CES) is highlighted in this research article. It assessed the distribution pattern and impact of these xenobiotics in this environmental niche. Fifteen persistent organochlorine compounds (OCs) were quantitatively analysed in the six sediment core samples col...

2016
Nicholaus Reid Ohde Richard C. Schultz Matthew Helmers

........................................................................................................................ 6 Introduction ................................................................................................................... 7 Materials and Methods ................................................................................................ 11 Site Description .......

2005
S. L. Yang J. Zhang J. P. Smith S. B. Dai A. Gao P. Li

[1] On the basis of estimates of sediment accumulation in reservoirs, the impact of 50,000 dams on sediment supply and intertidal wetland response in the Yangtze River catchment is examined. The total storage capacity of reservoirs is 200 10 m, or 22% of the Yangtze annual runoff. The sediment accumulation rate in reservoirs has increased from 0 in 1950 to >850 10 t/yr in 2003. Although sedimen...

Grupi and Kashkan marl formations comprise a considerable part of Zagros region. These formations have a considerable erodibility and sedimentation potential because of their special geological and mineralogical characteristics. The objective of this study was to compare the erosion and sediment yield of Kashkan and Grupi formations in Merk watershed located in southeast Kermanshah, using the M...

آقارضی, حشمت اله, صادقی, سید حمیدرضا , محمدی, مجید, پورقاسمی, حمیدرضا,

The use of suitable empirical models for estimation of soil erosion and sediment yield is essential because of nonexistence or shortage of associated data in many watersheds. In the present study, the applicability of the USLE and its different versions Viz. MUSLE-S, AOF, MUSLT, MUSLE-E, USLE-M and AUSLE in estimation of storm-wise sediment yield from standard plots installed in dry farming, pl...

Journal: :Eos, Transactions American Geophysical Union 2014

Journal: :مرتع و آبخیزداری 0
شفق رستگار استادیار دانشکده منابع طبیعی، دانشگاه علوم کشاورزی و منابع طبیعی ساری حسین بارانی دانشیار دانشکده منابع طبیعی، دانشگاه علوم کشاورزی و منابع طبیعی گرگان علی دریجانی استادیار دانشکده اقتصاد کشاورزی، دانشگاه علوم کشاورزی و منابع طبیعی گرگان واحدبردی شیخ دانشیار دانشکده منابع طبیعی، دانشگاه علوم کشاورزی و منابع طبیعی گرگان جمشید قربانی دانشیار دانشکده منابع طبیعی، دانشگاه علوم کشاورزی و منابع طبیعی ساری محمد قربانی استاد دانشکده اقتصاد کشاورزی، دانشگاه فردوسی مشهد

vegetation cover as the main factor affecting the water erosion plays an important role in preventingsoil loss. to this end, for better understanding the impact of vegetation cover on soil erosion andsediment yield over the major existing geological formations in the summer rangelands of balade inthe mazandaran province, rainfall simulation studies have been carried out using a portable rainfal...

2007
H. M. MOORE

Probst & Amiotte Suchet (1992) are to be complimented on their valuable contribution to the investigation of erosion in the Maghreb (North Africa). As noted by the authors, the study of erosion at the global scale has neglected the Maghreb region and their recent paper draws attention to the intensity of sediment loss in this area. Their statistical analysis of a large body of suspended sedimen...

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