نتایج جستجو برای: groundwater demand

تعداد نتایج: 173452  

2016
Ramesh Dhungel

Groundwater depletion in the face of growth is a well-known problem, particularly in those areas that have grown to become dependent on a declining resource. This research comprises a broad synthesis of existing water resources data, to understand the long-term implications of continued growth in water demand on groundwater dominant water resources, and to develop a tool for sustainable water m...

In recent years, with excessive extraction of groundwater resources, Hamedan-Bahar-plain’s ground water level dropped severely. So it is important to apply appropriate management strategy for the optimal utilization of this resource. In the economic management of water resources, the main issue is a balance between supply and demand for water. In creating this balance, an important role is the ...

2012
Richard G. Taylor

1 Ground water is an almost ubiquitous source of generally high-quality fresh water. These characteristics promote its widespread development, which can be scaled and localized to demand, obviating the need for substantial infrastructure1. Globally, ground water is the source of one third of all freshwater withdrawals, supplying an estimated 36%, 42% and 27% of the water used for domestic, agri...

2015

The scenario of the present era shows that the environmental impact was high on water resources. Water is the eternal source for living with nature. The contamination of groundwater resources is hike at many areas. In this paper an attempt has been taken to analyze the physical and chemical parameters groundwater in the city of Tiruppur. The city of Tiruppur is famous for textiles. There is an ...

The present study investigates groundwater quality in terms of heavy metals level and microbial contamination as well as the impact of bleaching powder on microbial load of groundwater samples in close proximity to a surface water body inside selected areas of Ibadan Nigeria. To do so, it collects nine water samples from three boreholes and six hand-dug wells from six locations, namely Eleyele,...

Journal: :Tree physiology 1996
Todd E. Dawson

Use of soil water and groundwater by open-grown Acer saccharum Marsh. (sugar maple) tree canopies and forests was estimated by measuring transpiration (E) rates using porometry, sap flow methods, and the Bowen ratio method. The Bowen ratio and sap flow methods showed the best agreement; porometer measurements scaled to whole canopies always underestimated E by 15-50%. Trees of different sizes s...

2012
Jinlan Xu

Approximatelly 0.6 million tons of petroleum is poured into soil, groundwater, rivers and oceans every year in China. A large amount of the oil contaminated soil has not been remediated. The contaminated soil poses a severe threat to the environment and must be taken care of. Bioremediation has become one of the most popular and promising technologies with growing demand for the remediation of ...

2004
Manuel Pulido-Velazquez Marion W. Jenkins Jay R. Lund

[1] The potential and limitations of conjunctive use of surface and groundwater are explored for southern California’s water supply system. An economic-engineering network flow optimization model, CALVIN, is used to analyze the economic and reliability benefits from different conjunctive use alternatives. Flexible management of additional conjunctive use facilities and groundwater storage capac...

2014
Anupam Khajuria Sayaka Yoshikawa Shinjiro Kanae

Watershed management consists of multifunctional activities to manage and address the increasing water resource problems. Ever increasing water demand and rapidly depleting water resources, it has become necessary to develop the adaptation options to recharge groundwater resources. A watershed is a special kind of Common Pool Resources (CPRs); an area is defined by hydrological linkages where o...

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