نتایج جستجو برای: groundwater management

تعداد نتایج: 876526  

2017
A. J. Jakeman O. Barreteau R. J. Hunt Sondoss Elsawah Joseph H.A. Guillaume

Groundwater management issues present a serious challenge partly because of the complexity and uncertainty that human elements (i.e. cognitive, social, cultural and political) bring into the problem, as well as our limited capacity to fully comprehend and deal with such elements and their interactions with the biophysical systems. Whereas there is a wide recognition of the importance of stakeho...

2015
Jinfeng Wang Yanchun Gao Sheng Wang Assefa M. Melesse

Groundwater resources are becoming the primary factor for maintaining life in arid areas. Understanding land use/cover change and its effect on groundwater depth would enhance land use and groundwater management for typical desert-oasis transition zones. Reduction of groundwater recharge and increase of groundwater exploitation during 1985 and 2010 led to the decrease of groundwater depth in Li...

2003
V. M. Chowdary

In large canal irrigation project areas, integrated management of surface and groundwater resources can improve water use efficiencies and agricultural productivity and also control water logging. Such integrated management requires an estimation of spatial distribution of recharge and ground water flow in the underlying aquifer. Recharge occurs both as percolation losses from fields and seepag...

Investigation of changes in groundwater resources is of great importance in planning and sustainable management of water resources. Knowledge on the relationship between groundwater and drought is prerequisite for water resources management. In this study, climatic variables including evaporation, temperature, precipitation as well as hydrological variables i.e. discharge and groundwater depth ...

2016
Brian F. Thomas Ali Behrangi James S. Famiglietti Thomas M. Missimer

Episodic recharge as a result of infrequent, high intensity precipitation events comprises the bulk of groundwater recharge in arid environments. Climate change and shifts in precipitation intensity will affect groundwater continuity, thus altering groundwater recharge. This study aims to identify changes in the ratio of groundwater recharge and precipitation, the R:P ratio, in the arid southwe...

2016
Encarna Esteban Elena Calvo

250 words) The increasing pressure and overexploitation of water bodies in the recent decades are negatively affecting the quality and quantity of aquifers. Its deterioration is also having many negative impacts on numerous ecosystems connected with these water bodies, as is the case of groundwater-dependent ecosystems (GDEs). Therefore, the protection of groundwater resources and ecosystems ar...

2017
S. Gaur A. Dave A. Gupta A. Ohri

Fulfilling the growing water demand, at domestic, industrial and agriculture level, is the most challenging task and groundwater plays the most important role for achieving this demand. In this scenario, proper management of groundwater resources is the most required act, as unmanaged groundwater extraction may cause shrinking of aquifer, sea water intrusion and water quality problems. The simu...

غلامرضا سلطانی, , محمود صبوحی, , منصور زیبایی, ,

The objective of this study was to evaluate the strategies for groundwater resources management, including competition groundwater pumping, optimal control in groundwater pumping, groundwater use and tax policy, water users' participation in groundwater pumping control, and cooperation among government and water user associations in Narimany plain located in Khorasan Province. Irrigation water ...

ژورنال: علوم آب و خاک 2007
غلامرضا سلطانی, , محمود صبوحی, , منصور زیبایی, ,

The objective of this study was to evaluate the strategies for groundwater resources management, including competition groundwater pumping, optimal control in groundwater pumping, groundwater use and tax policy, water users' participation in groundwater pumping control, and cooperation among government and water user associations in Narimany plain located in Khorasan Province. Irrigation wate...

2017
A. J. Jakeman O. Barreteau R. J. Hunt J-D. Rinaudo Randall J. Hunt Alessandro Comunian Rachel S. Blakers Baihua Fu

Models of groundwater systems help to integrate knowledge about the natural and human system covering different spatial and temporal scales, often from multiple disciplines, in order to address a range of issues of concern to various stakeholders. A model is simply a tool to express what we think we know. Uncertainty, due to lack of knowledge or natural variability, means that there are always ...

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