نتایج جستجو برای: groundwater use

تعداد نتایج: 1770646  

Journal: :اقتصاد و توسعه کشاورزی 0
باغستانی باغستانی زیبایی زیبایی

abstract water pricing is a policy instrument for improving water efficiency, reducing water demand, management of the irrigation systems and recovering costs. the underlying principle of water pricing is that it should reflect the opportunity cost of water. in this study, parametric mathematical programming approache were used to estimate the willingness of farmers to pay for groundwater under...

2007
Robert W. Peters

Groundwater is one of our most valuable natural resource. More than 50% of the U.S. population depends on groundwater for domestic use and more than 95% of the rural population is dependent on groundwater. A major portion of industries and agriculture use groundwater. These numbers suggest that the personal and economic health of the nation is dependent on groundwater. Contamination of groundwa...

2014
Jinxia Wang Lijuang Zhang Qiuqiong Huang Jikun Huang Scott Rozelle

Using field survey data collected by the authors, this chapter first describes groundwater markets in northern China that have been developing rapidly in the past two decades. Groundwater markets in the area are informal, localized and mostly unregulated. There is little price discrimination, and institutional characteristics tend to be similar in both highand low-income villages. The privatiza...

2009
Keith P. Harrison Robert E. Grimm

[1] Groundwater flow on Mars likely contributed to the formation of several types of morphologic and mineralogic features, including chaotic terrains, valley networks, Meridiani Planum geologic units and, potentially, sulfate and phyllosilicate deposits. A central issue for these features is the spatial scale of groundwater flow required for their formation. For groundwater simulation purposes,...

Journal: :Japan Agricultural Research Quarterly: JARQ 2011

Journal: :International Journal of Research in Engineering and Technology 2012

Journal: :Journal of environmental management 2015
Keith E Schilling Peter J Jacobson Jason A Vogelgesang

With current trends of converting grasslands to row crop agriculture in vulnerable areas, there is a critical need to evaluate the effects of land use on groundwater quality in large river floodplain systems. In this study, groundwater hydrology and nutrient dynamics associated with three land cover types (grassland, floodplain forest and cropland) were assessed at the Cedar River floodplain in...

2016
Pankaj Kumar Srikantha Herath Ram Avtar Kazuhiko Takeuchi

Groundwater is a vital natural capital for the consistent and economic provision of potable water supply for both rural and urban environments. There is now a strong consensus that climate change poses a fundamental challenge to the well-being of all countries, with potential of being the harshest on countries already suffering from water scarcity. Dry zone of Killinochi basin in Northern Sri L...

Hassan Vagharfard Mostafa Moradi Dashtpagerd,

Artificial recharge can be an effective method to raise the groundwater table and to resolve the groundwater crisis in Sefid dasht plain. The most important step to successful accomplishment of artificial recharge is locating suitable areas for artificial recharge. Hence this research carried out with purpose of determining suitable areas for artificial recharge in Sefid dasht plain. Slope, sur...

Journal: :Hydrology and Earth System Sciences 2010

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