نتایج جستجو برای: groundwater decline

تعداد نتایج: 118576  

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 ...

Journal: :اکو هیدرولوژی 0
محبوبه امیری بورخانی دانشجوی کارشناسی ارشد آبیاری و زهکشی، گروه مهندسی آب دانشگاه گیلان محمدرضا خالدیان دانشیار، گروه مهندسی آب، دانشکدۀ علوم کشاورزی، دانشگاه گیلان، و گروه پژوهشی مهندسی آب و محیط زیست، پژوهشکدۀ حوضۀ آبی دریای خزر افشین اشرف زاده استادیار، گروه مهندسی آب، دانشکدۀ علوم کشاورزی، دانشگاه گیلان علی شاه نظری دانشیار، گروه مهندسی آب، دانشگاه علوم کشاورزی و منابع طبیعی ساری

yazd province is one of the most arid regions of iran and its agriculture particularly pistachio cultivation depends on groundwater resources. in the recent decades, natural factors (drought and severe evaporation) and human activities (over- exploitation of groundwater) caused a sharp decline in the quality and quantity of groundwater in this province. in the present study, the spatial and tem...

Journal: Geopersia 2015

It is over two decades that groundwater flow models are routinely implemented for better management of groundwater resources.Modeling groundwater flow with the help of the ground water modeling system (GMS) in the Damghan plain aquifer in northern Iran,which experiences declining levels and numerous environmental hazards, has demonstrated that, (a) in the worst case scenario theaquifer will fac...

2011
G. R. Lashkaripour M. Ghafoori

The prime objective of this research is to study and examine the groundwater decline and its effect on the quality of groundwater in aquifer of Torbat Jam plain for a period of 19 years. Torbat Jam plain stretching over an area of about 3500 km2, in northeastern part of Iran. The plain is considered as a semi-arid to arid zone. It has gained substantial importance because of agricultural prospe...

2012
Fardin Boustani

Groundwater is one of the most important water resources in Fars province. Based on this study, 95 percent of the total annual water consumption in Fars is used for agriculture, whereas the percentages for domestic and industrial uses are 4 and 1 percent, respectively. Population growth, urban and industrial growth, and agricultural development in Fars have created a condition of water stress. ...

Journal: :Environment international 2016
Zhaoyang Liu Yonglong Lu Tieyu Wang Pei Wang Qifeng Li Andrew C Johnson Suriyanarayanan Sarvajayakesavalu Andrew J Sweetman

Perfluoroalkyl acids (PFAAs) can be released to water bodies during manufacturing and application of PFAA-containing products. In this study, the contamination pattern, attenuation dynamics, sources, pathways, and risk zoning of PFAAs in surface and ground water was examined within a 10km radius from a mega-fluorochemical industrial park (FIP). Among 12 detected PFAAs, perfluorooctanoic acid (P...

2017
H. Hashemi C. B. Uvo R. Berndtsson

The effect of future climate scenarios on surface and groundwater resources was simulated using a modeling approach for an artificial recharge area in arid southern Iran. Future climate data for the periods of 2010–2030 and 2030–2050 were acquired from the Canadian Global Coupled Model (CGCM 3.1) for scenarios A1B, A2, and B1. These scenarios were adapted to the studied region using the delta-c...

Journal: Desert 2017

     Reduction of water resources limits the ability of farmers for food production and subsistence. Nowadays the quick growth of population has been the most important factor in the decline of renewable water. In many parts of Iran, including region of interest, the major factor in water resources decline was land use change, that may  cause to ecological destruction and disruption. Sustainabl...

Journal: :Agriculture 2023

Worldwide, groundwater quality is in decline, growing progressively saltier [...]

نمودار تعداد نتایج جستجو در هر سال

با کلیک روی نمودار نتایج را به سال انتشار فیلتر کنید