نتایج جستجو برای: extended abstract introduction water resources management in arid and semi

تعداد نتایج: 21943512  

In arid and semi-arid countries such as Iran, which are always faced water supply problems in various sectors due to climate stress, the importance of surface runoff management in watersheds is becoming increasingly apparent. One of the components of water resources management in each region is the initiatives of people living in and around watersheds based on their indigenous and empirical kno...

ژورنال: آبخیزداری ایران 2021
Malekian, Arash, Moradi, Saba,

Climate change along with human interventions has changed natural hydrological cycle and consequently the need for more water resources, timely supply of water needs has faced serious challenges. Estimation of basal flow index has been one of the important issues in hydrology. In order to analyze the minimum flows in this study, 12 hydrometric stations with a statistical period of 30 years in n...

پایان نامه :دانشگاه آزاد اسلامی - دانشگاه آزاد اسلامی واحد تهران مرکزی - دانشکده ادبیات و علوم انسانی 1389

abstract abstract of thesis (includes summary, goals, execution methods, and results) story “al-obnosat al-bayza” is one of the short stories from “hanna mineh” collection. this story is a selection of lives of some humans during a voyage together, each of them is a symbol of human nature (love, mind, kindness) and examine social, cultural, and political aspects of governing system, and it...

Drought is one of the most important natural hazards that should affect Agriculture and water resources. The frequency of its occurrence, especially in arid and semi-arid areas of Iran is very high. Therefore simulation and drought forecasting is necessary more than ever. This factor is importance in the planning and management of natural resources and water resources. In this study seasonal dr...

Introduction: Being located in an arid and semi-arid region, Iran has always faced with limited water resources. As groundwater extraction has now exceeded the permitted limits all over Iran and the country faces considerable constraints in developing groundwater resources, severe water crisis looms large in the horizon. In this regard, a quick solution should be considered to supply water from...

2009
Jason K Hansen

Increased water scarcity implies that residents of arid, heavily populated regions of the U.S. will have to increase water conservation or else face the consequence of water shortfalls. Voluntarily conserved water is an impure public good since it is non-excludable and rival in consumption. This means that water conservation benefits are subject to free-riding behavior. This paper considers a d...

Population’s exponential growth along with drought has increased water resources limitation, especially in arid and semi-arid area. Therefore, the use of non-conventional water is an important tool for water resource management. If unconventional water has no negative impact on soil properties and water, it can be used for irrigation coupled with desertification projects. So, this paper tries t...

اصغری سرسکانرود, صیاد, بلواسی, مهدی, زینالی, بتول, صاحبی وایقان, سعیده,

     Main part of Iran is in arid and semi-arid region and water is a limiting factor of human activities in this area. One of the ways to overcome seasonal shortages of water is using groundwater. Underground dam is a storage methods and use of groundwater that it can be used to improve water resources management and increase utilities of these resources. In this study, It has been tried to id...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه بیرجند - دانشکده علوم انسانی 1389

abstract amino acids are building blocks of proteins, and play a vital role in living beings existence and their functionality. the interaction of these compounds with metal ions is of great importance to biochemists, and chemists, because their functions can be utilized as a model in understanding enzymes mechanism for transport of metal ions to tissues. among twenty essential amino acids w...

Hosein ANSARI Jamshid PIRI

Evaporation, as a major component of the hydrologic cycle, plays a key role in water resources development and management in arid and semi-arid climatic regions. Although there are empirical formulas available, their performances are not all satisfactory due to the complicated nature of the evaporation process and the data availability. This paper explores evaporation estimation methods based o...

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