نتایج جستجو برای: water demand supply

تعداد نتایج: 804624  

Journal: :چغندرقند 0
علی سلیمانی دانشیارگروه زراعت و اصلاح نباتات- دانشگاه آزاد اسلامی، واحد خوراسگان

hargraves-samani method is one of the methods for calculating plant evapotranspiration that needs minimum meteorological data. in order to evaluate et-hs model in determining sugar beet crop water demand in isfahan, an experiment was conducted at research field of department of agriculture, khorasgan branch, islamic azad university, isfahan, iranin 2005. the study was based a randomized complet...

Aims :Water is considered as one of the main sources for development in Iran, especially in the margin of desert. Its lack is one of the main limiting factors in the life of a society and the development of economic activities. Regarding the fundamental problems in urban water supply in Yazd province, combined management of water supply and demand in order to balance the future supply and dema...

Journal: :international journal of agricultural management and development 2015
morteza tahamipour mohammad kavoosi kalashami amirhossein chizari

pricing policies play an important role in water demand management and its optimal allocation. determining proper water price leads to optimal allocation of water especially in agricultural consumptions. applying new subsidy targeting law in iran which insists on pricing water based on its supply cost, will effects considerably on water resource management in agriculture sector. so, in this stu...

Journal: :international journal of environmental research 2013
s. rasi nezami m. nazariha a. moridi a. baghvand

maharlou-bakhtegan catchment in the southern part of iran is faced with water scarcity.this problem is exacerbated by environmental degradation, climate change effects, mismanagementof water resources, along with a major dependence of water demand supplies on the limitedgroundwater resources. in this study, a combined approach of dpsir model along with the scenarioanalysis was employed to deriv...

Amirhossein Chizari Mohammad Kavoosi Kalashami Morteza Tahamipour

Pricing policies play an important role in water demand management and its optimal allocation. Determining proper water price leads to optimal allocation of water especially in agricultural consumptions. Applying new subsidy targeting law in Iran which insists on pricing water based on its supply cost, will effects considerably on water resource management in agriculture sector. So, in this stu...

Journal: :اقتصاد و توسعه کشاورزی 0
علی فلاحتی کیومرث سهیلی میثم واحدی

the serious obstacles to improve water supply, has caused world debates, seeking some solutions to tackle the problem of shortages in water supply. t. therefore, programs and policies have focused mainly on appropriate pricing approachof. since the water industry in iran has been monopolized by the government, an effective pricing approach is assumed to maximize the social welfare with consider...

2008
Ge Sun Steven G. McNulty Jennifer A. Moore Erika C. Cohen

Assessment of long-term impacts of projected changes in climate, population, and land use and land cover on regional water resource is critical to the sustainable development of the southeastern United States. The objective of this study was to fully budget annual water availability for water supply (precipitation ) evapotranspiration + groundwater supply + return flow) and demand from commerci...

2015
Lu Hao Ge Sun Yongqiang Liu Hong Qian

Water resource management is becoming increasingly challenging in northern China because of the rapid increase in water demand and decline in water supply due to climate change. We provide a case study demonstrating the importance of integrated watershed management in sustaining water resources in Chifeng City, northern China. We examine the consequences of various climate change scenarios and ...

2004
M. Killick

Over the last decade the approach to dealing with an increasing water demand in the Cape Metropolitan Area (CMA) has progressively shifted from a supply oriented philosophy to one where strategies for reducing the demand are integrated with supply management. While there is still much to be done to implement a totally integrated approach, a firm foundation has been laid. Water demand management...

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