نتایج جستجو برای: depletion of water resources

تعداد نتایج: 21232585  

2017
Tess A. Russo Upmanu Lall

Groundwater constitutes a critical component of our water resources. Widespread groundwater level declines have occurred in the USA over recent decades, including in regions not typically considered water stressed, such as areas of the Northwest and mid-Atlantic Coast. This loss of water storage reflects extraction rates that exceed natural recharge and capture. Here, we explore recent changes ...

Journal: :Mathematical and Computer Modelling 1991

Journal: Desert 2017
J. Bazrafshan M. Karimpour Reihan M. Mohseni Saravi Sh. Khalighi Sigaroudi َA. Salehpour Jam

     Investigation of drought event has a great importance in the natural resources and water resources management and planning. In this research, the effect of the climate change on drought characteristics in Khoy station was investigated using the HadCM3 model under B2 scenario. The statistical downscaling was executed using SDSM 4.2.9 and observed daily precipitation, observed predictors and...

پایان نامه :0 1391

employees always concern about losing their job , or in other word , losing their income resources. for this purpose, every government requires strong system for covering these concerns. the unemployment insurance (ui) program’s can be used for achieving this goal. in this thesis, we price ui based on the insurance history of employee and the duration of being unemployed. we use the weibull dis...

Journal: :Geophysical Research Letters 2010

In the last decade, various aspects of groundwater resource depletion have gained a special place among water sector experts and decision makers. Research in this area is relatively new in most parts of the world. Groundwater depletion, which has been in a concerning state for most plains in Iran in recent years, has various consequences which impede sustainable development. One of the most imp...

Journal: :محیط شناسی 0
بهرام ملک محمدی مدیریت و برنامه ریزی منابع آب دانشکده محیط زیست دانشگاه تهران طاهره اسکندری دانشگاه تهران لعبت زبردست عضو هیأت علمی علی عزیزی دانشگاه تهران

introduction management and decision-making issues related to water resources, especially groundwater, which is an important source of fresh water, is the main decisions of a country. according to population growth and increasing demand as well as lack of water, proper management for these resources will be needed. so integrated environmental assessment is one of the best and most effective too...

پایان نامه :دانشگاه آزاد اسلامی - دانشگاه آزاد اسلامی واحد تهران مرکزی - دانشکده مدیریت 1391

one of the most important factors in study of project’s , is the study of environmental opportunities factors the permanent study of environmental opportunity factors . the study of permanent environmental changing and knowing golden threats’ cooperate with possible threats and at the result in structure forming and future skeleton of organization has a vital effects . the petrochemical industr...

ژورنال: علوم آب و خاک 2018

Depletion and consequently reduction in groundwater storage results in numerous harmful environmental effects such as reduction in yields of wells, land subsidence, lowering of water quality and also reduction in storage of surface water bodies having hydraulic relation with aquifers. In this research, groundwater depletion in the Najafabad subcatchment aquifer located in the GavKhouni basin, I...

2012
Fardin Boustani

Groundwater resources in Arsanjan plain provide water for agriculture, industry, and human consumption. Continued agricultural development in this area needs to additional groundwater resources for, particularly during of drought periods, and effects on the quantity and quality of ground water available. The purpose of this study is to evaluate water level changes in the aquifer of Arsanjan pla...

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