نتایج جستجو برای: deep water table

تعداد نتایج: 851194  

2010
Zhaohua Dai Carl C. Trettin Changsheng Li Devendra M. Amatya Ge Sun

A physically based distributed hydrological model, MIKE SHE, was used to evaluate the effects of altered temperature and precipitation regimes on the streamflow and water table in a forested watershed on the southeastern Atlantic coastal plain. The model calibration and validation against both streamflow and water table depth showed that the MIKE SHE was applicable for predicting the streamflow...

A. Malekian B. Motamedvaziri Gh. Ashtiani M. Mahdavi

Water is the main option of any development, so having an accurate management of groundwater is necessary. This study has been done in Damghan sedimentary plain in Iran, which is located in northwest of Semnan Province. The main objective of this research was to estimate the rate and right site of recharge in Damghan plain to prevent the aquifer from decreasing the water table. For this purpose...

2015
Amber C. Churchill Merritt R. Turetsky A. David McGuire Teresa N. Hollingsworth

Northern peatlands represent a long-term net sink for atmospheric CO2, but these ecosystems can shift from net carbon (C) sinks to sources based on changing climate and environmental conditions. In particular, changes in water availability associated with climate control peatland vegetation and carbon uptake processes. We examined the influence of changing hydrology on plant species abundance a...

Journal: :PLoS ONE 2008
Alberto Lindner Stephen D. Cairns Clifford W. Cunningham

Shallow-water tropical reefs and the deep sea represent the two most diverse marine environments. Understanding the origin and diversification of this biodiversity is a major quest in ecology and evolution. The most prominent and well-supported explanation, articulated since the first explorations of the deep sea, holds that benthic marine fauna originated in shallow, onshore environments, and ...

2009
RALPH F. KEELING MARTIN VISBECK

The suggestion is advanced that the remarkably low static stability of Antarctic surface waters may arise from a feedback loop involving global deep-water temperatures. If deep-water temperatures are too warm, this promotes Antarctic convection, thereby strengthening the inflow of Antarctic Bottom Water into the ocean interior and cooling the deep ocean. If deep waters are too cold, this promot...

Journal: :مرتع و آبخیزداری 0
محمد میرزاوند ‏ کارشناس ارشد آبخیزداری، دانشکدة منابع طبیعی و علوم زمین، دانشگاه کاشان هدی قاسمیه استادیار دانشکدة منابع طبیعی و علوم زمین، دانشگاه کاشان محمود اکبری استادیار گروه عمران، دانشکدة مهندسی، دانشگاه کاشان سید جواد ساداتی نژاد دانشیار دانشکدة علوم و فنون نوین، دانشگاه تهران

kashan aquifer is adjacent to salt lake. because of this adjacency, the saline water of the lake has moved to the aquifer. in this study groundwater quality of the aquifer was simulated using artificial neural network (ann) model. for this purpose, the dominant ion of water was first determined by piper diagram. results showed that the sodium chloride is the dominant ion of water and so it was ...

2006
S. W. Lyon J. Seibert A. J. Lembo M. T. Walter T. S. Steenhuis

Shallow water tables near-streams often lead to saturated, overland flow generating areas in catchments in humid climates. While these saturated areas are assumed to be principal biogeochemical hot-spots and important for issues such as non-point pollution sources, the spatial and temporal behavior of shallow water tables, and associated saturated areas, is not completely understood. This study...

Journal: :محیط شناسی 0
حمیدرضا پورخباز استادیار گروه محیطزیست، دانشکدة منابع طبیعی دانشگاه صنعتی خاتمالانبیا بهبهان حسین اقدر دانشجوی کارشناسی ارشد سنجش از دور و gis، دانشکدة علوم دانشگاه شهید چمران اهواز فاطمه محمد یاری دانشجوی کارشناسی ارشد ارزیابی و آمایش سرزمین، دانشکدة منابع طبیعی دانشگاه صنعتی خاتمالانبیا بهبهان سعیده جوانمردی مربی گروه محیط زیست، دانشکدة منابع طبیعی دانشگاه صنعتی خاتم الانبیاء بهبهان

introduction   capability evaluation can be considered as a basic strategy for land use becausethe development synchronous with the naturecan be achieved by using identifying and assessing of the ecological characteristics of the area. agricultural land suitability classification based on indigenous knowledge is vital to land-use planning (ecological capacity evaluation). execution of developme...

Abbas Maleki Ali Mokhtaran Mohammad Salakhpoor,

The research in the fields of irrigation and drainage network in the province Hamidieh to evaluate the performance of drainage was done in the land. For this purpose, three drainage server farm at intervals of 50, 70 and 80 meters in the area was selected. Blank observation on three drain pipes at intervals of 0.3,0.8,1.5,2.5 and 15 meters of lateral drains in the middle of the line in four row...

Journal: :Biological & pharmaceutical bulletin 2008
Shin-Ichiro Katsuda Takeshi Yasukawa Koji Nakagawa Masao Miyake Masao Yamasaki Kiyoaki Katahira Motohiko Mohri Tsuyoshi Shimizu Akihiro Hazama

Deep-sea water is rich in minerals, e.g., Mg, Ca, and K which have been considered to be associated with prevention of cardiovascular disease. We investigated the effect of deep-sea water on cardiovascular hemodynamics in Kurosawa and Kusanagi-Hypercholesterolemic (KHC) rabbits. Deep-sea water was pumped in the offing of Cape Muroto in Japan and the mineral constituents were refined to a degree...

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