نتایج جستجو برای: irregular extraction from groundwater

تعداد نتایج: 5702658  

2017
Reena Badiani Katrina Jessoe

In this paper we estimate the effect of agricultural electricity subsidies in India on groundwater extraction and agricultural output. Our empirical approach exploits changes in state electricity prices over time controlling for aggregate annual shocks and fixed district unobservables. Electricity subsidies meaningfully increase groundwater extraction, where the implied extensive margin price e...

سیدان, سید محسن, قربانی, محمد, کهنسال, محمدرضا,

Stable modeling in water resources management requires recognizing the relations between the different uses of water and their long-term results on one hand and taking into account the current and future access to water resources and demands for them, on the other hand. In recent years, Hamedan-Bahar plain has been identified as one of the restricted groundwater areas in Hamedan province.  In t...

Journal: :اقتصاد و توسعه کشاورزی 0
صبوحی صبوحی مجرد مجرد

abstract atrak basin is an agricultural area in north khorasan province that the most farmers are using from groundwater resources for irrigation their crops. decreasing rainfall in recent years in this area, competition between urban, agriculture and industrial consumers has increased for water acquisition. in present study, game theory was applied for groundwater resources management of atrak...

2004
Nicholas BROZOVIĆ David L. Sunding David Zilberman

Despite modeling groundwater as a common property resource, existing economic analyses find that the quantitative difference between competitive and socially optimal groundwater management outcomes is negligible. Thus, in contrast to the public perception of groundwater overextraction and resource depletion, there appears to be no economic rationale for groundwater management. In this paper, we...

Heydari kochi, Ebrahim, Heydari kochi, Esmaeil,

Background & Objective: Nitrate is one of the contaminants of groundwater resources that has had a growing trend in recent decades as the result of human activities such as agriculture, irregular utilization of groundwater aquifers, and non-systematic disposal of urban and industrial sewage. The increase of nitrate higher than the limit causes several health problems such as Methemoglobinemia, ...

2008
Alex Hay-Man Ng Hsing-Chung Chang Kui Zhang Linlin Ge Chris Rizos

Continued excessive extraction of groundwater may lead to significant land subsidence, which causes economic loss. The aim of this research is to investigate ground subsidence in several Australian capital cities using the Persistent Scatterer Interferometry approach. Such studies may help improve our understanding of the deformation of terrain and built structures, and evaluate the effectivene...

اصغری سراسکانرود, صیاد, زینالی, بتول, فریدپور, مجتبی,

The studied area in this study is Marand plain with an area equivalent to 517.42 square kilometers in the North West of East Azerbaijan province. In this research, consecutive periods of meteorological and hydrogeological droughts were detected by SWI and SPI drought index at 6 periods (6, 9, 12, 18, 24 and 48 months). For this purpose was used monthly precipitation mean of 7 rain-gauge station...

Journal: :IEEE Transactions on Visualization and Computer Graphics 2006

Journal: :Journal of the Air & Waste Management Association 1991

Journal: :اقتصاد و توسعه کشاورزی 0
باریکانی باریکانی احمدیان احمدیان خلیلیان خلیلیان

abstract surface water restriction and supply variation of these resources causes of over extraction of groundwater and unbalance between feed and extraction of groundwater in iran. agricultural sector as the biggest consumer of water resources has the most share of this unsustainability. this paper studies the conjunctive use of surface and groundwater in agronomy production in qazvin basin, o...

نمودار تعداد نتایج جستجو در هر سال

با کلیک روی نمودار نتایج را به سال انتشار فیلتر کنید