نتایج جستجو برای: salinization of water and soil resources

تعداد نتایج: 24108640  

Journal: :iranian journal of environmental sciences 0
mina arast department of geography and eco-tourism, faculty of natural resources and earth sciences, university of kashan, kashan, iran gholamreza zehtabian department of arid and mountainous regions reclamation, faculty of natural resources, university of tehran, iran mohammad jafari department of arid and mountainous regions reclamation, faculty of natural resources, university of tehran, iran hassan khosravi department of arid and mountainous regions reclamation, faculty of natural resources, university of tehran, iran bahareh jabalbarezi department of arid and mountainous regions reclamation, faculty of natural resources, university of tehran, iran

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...

تبرزد, امیر, سلیمی, محمد حسین, قائمی, علی اصغر,

Scarcity of conventional water resources and high volume of wastewaters have increased the important role of crop residues to reduce evaporation from soil surface and optimal use of water, especially in greenhouse cultivation. In the present research, the impact of crop residues and fishery’s wastewater on yield, qualitative characteristics and water productivity of cherry tomato was stud...

2012
J. G. BOCKHEIM A. E. HARTEMINK

The taxonomic hierarchy and nationwide distribution of soils with a salic horizon were studied using the USA Natural Resources Conservation Service Soil Survey Geographic (SSURGO) Database to provide a more holistic view of the role of soil-forming factors in pedogenesis than from isolated case studies. Soils with a salic horizon occupied an area of 11 000 km2, i.e., 0.1% of land area in the co...

خاتمی, سیـد جواد , خاتمی, سیـده سمیه ,

Quran is the perfect scripture for the guidance of humans and the words of which are the best words in directing humans. The true scholar is one who the light of knowledge and wisdom together with God's light, faith and piety has enlighten all his soul. With regard to the advancement of various branches of science among Muslims and the need for getting to know with sciences which can make Quran...

ژورنال: آبخیزداری ایران 2022

Sustainability of groundwater resources means ensuring the permanent availability of essential groundwater services for a long-time. This research was conducted to investigate the sustainability of groundwater resources in the prohibited plain of Behshahr- Bandar-e-Gaz by using water expoliation and green water scarcity indices. Initially, the green water deficit index was calculated based on t...

Journal: :محیط شناسی 0
سید علی جوزی دانشیار گروه محیط زیست، دانشکدۀ فنی و مهندسی، دانشگاه آزاد اسلامی واحد تهران شمال سیده حمیده سیف السادات کارشناس ارشد رشتۀ علوم محیط زیست، ارزیابی و آمایش سرزمین، دانشگاه آزاد اسلامی واحد علوم و تحقیقات خوزستان

introduction gotvand-olia as one of the largest constructional projects in iran has been constructed on the karoun river, between masjed soleiman and gotvand regulatory dam in khuzestan province. it is situated in 382.8 km away from the river estuary at a distance of 25 km north of shoushtar city. this study was conducted to identify and assess the risk of gotvand-olia dam on the environment at...

ژورنال: علوم آب و خاک 2017

Today, modern irrigation systems are constructed at a very high cost to operate for optimal use of water and soil. Lack of appropriate technical, social and economic studies, caused high maintenance costs of these facilities during operation. Water resources have been polluted due to industrial development, increasing human population and non-compliance with environmental standards. Most of hyd...

2014
Z. Zhang H. Hu M. Sivapalan

Water is essential for life. Specifically in the oases of inland arid basins, water is a critically limited resource, essential for the development of the socio-economy and the sustainability of eco-environmental systems. Due to the unique hydrological regime present in arid oases, a moderate groundwater table is the goal of sustainable water management. A shallow water table induces serious se...

Journal: Geopersia 2014

For more than half a century isotopes have been employed as a powerful tool in studying various aspects of water resources in a largenumber of countries. However, in developing countries like Iran the application of such techniques is in its infancy. The first research inIran was carried out in 1975 to identify the source of saline groundwaters in south Iran, and the first national conference o...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه علامه طباطبایی - دانشکده اقتصاد 1389

abstract: about 60% of total premium of insurance industry is pertained?to life policies in the world; while the life insurance total premium in iran is less than 6% of total premium in insurance industry in 2008 (sigma, no 3/2009). among the reasons that discourage the life insurance industry is the problem of adverse selection. adverse selection theory describes a situation where the inf...

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