نتایج جستجو برای: water table fall

تعداد نتایج: 723623  

Journal: :Ambiente e Agua - An Interdisciplinary Journal of Applied Science 2010

Nacharam and its surroundings, located inside the city of Hyderabad in Telangana State, India, is vulnerable to water-borne diseases; therefore, the present research works on concentrations of dissolved hexavalent chromium (57-263 mgL-1), lead (34-65 mgL-1), cadmium (2.3-22.4 mgL-1), and nickel (from below detection limit to 6.5 mgL-1) in different surface water and groundwater bodies of this a...

Journal: Pollution 2018

Nacharam and its surroundings, located inside the city of Hyderabad in Telangana State, India, is vulnerable to water-borne diseases; therefore, the present research works on concentrations of dissolved hexavalent chromium (57-263 mgL-1), lead (34-65 mgL-1), cadmium (2.3-22.4 mgL-1), and nickel (from below detection limit to 6.5 mgL-1) in different surface water and groundwater bodies of this a...

2012

Responses of wetland carbon cycling to environmental changes, particularly changes in water table depth, which are the key determinants to control the ecological and biogeochemical functions of wetlands, are highly non-linear and complex due to the dynamic interactions of several physical and biological processes. Several field experiments have found that wetland productivities have a significa...

Journal: :کشاورزی (منتشر نمی شود) 0
حمیده نوری دکترای مهندسی آب، گروه مهندسی آبیاری و زهکشی، پردیس کشاورزی و منابع طبیعی، دانشگاه تهران، تهران عبدالمجید لیاقت دانشیار، گروه مهندسی آب، گروه مهندسی آبیاری و زهکشی، پردیس کشاورزی و منابع طبیعی، دانشگاه تهران، تهران

a field study was conducted to evaluate the possibility of using water table control techniques in the semi arid region of iran with special attention to its salinity management. the wtm consisted of three subirrigation treatments with water table controls set at 0.3, 0.5 and 0.7 m from the soil surface and a free drainage (fd) treatment. the electrical conductivity (ec) of water was 1.5 ds/m. ...

Journal: :نشریه علمی - پژوهشی هیدرولوژی کاربردی 0
mahtab safari shad natural resource. university of sari mahmoud habibnejad roshan natural resource. university of sari karim solaimani natural resource. university of sari alireza ildoromi malayer university hossein zeinivand

groundwater drought denotes the condition and hazard during a prolonged meteorological drought when groundwater resources decline and become unavailable or inaccessible for human use. the aim of this study is to identify the influencial factors on groundwater drought in hamadan- bahar watershed,iran, to understand the forcing mechanisms. the standardised precipitation index (spi) has been used ...

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