نتایج جستجو برای: irrigation with saltwater
تعداد نتایج: 9208261 فیلتر نتایج به سال:
Farmers in the Indus Basin, Pakistan have generally switched to groundwater for additional water supplies due to the irregular supply of irrigation water; currently over 50% of the agricultural land in the basin is at least partially irrigated by tubewells. These wells pump fresh groundwater, which essentially is the result of massive leakage from irrigation canals into the originally saltwater...
Saltwater intrusion widely occurs in coastal areas. Therefore, dissolved salts are the most common contaminants in freshwater in coastal aquifers and this contamination arises from saltwater invasion, caused primarily by human activities due to heavy urbanization. For investigation of the methods of increasing storage of fresh ground water and prevention of seawater encroachment, predicting the...
there is a close connection between saltwater intrusion into aquifers and groundwater extraction. freshwater extraction in coastal aquifers is one of the most important reasons for the saltwater intrusion into these aquifers. condition of extraction system such as well depth, discharge rate, saltwater concentration and etc. could affect this process widely. thus, investigating different extract...
The second part of this three-part series on water-related dermatoses will discuss dermatologic conditions seen in athletes exposed to saltwater. The vast majority of the following dermatoses result from contact with organisms that inhabit saltwater, including bacteria, cnidarians, and echinoderms. This review also will include other dermatoses affecting saltwater athletes and should serve as a...
The salinization processes of the Yarkon-Taninim aquifer (Israel) were investigated for many years, and so far little was known about the saline water body prevailing in the North-Western margin of the aquifer. The salinity of the water in this water body is close to that of seawater. Recently, in drilled wells in the Northern part of the aquifer, it was found that the freshwater and the saltwa...
Groundwater is of the most reliable sources of water for agriculture and drinking. In coastal areas due to saltwater intrusion, determine the interface between fresh and salt water for residents of these areas is very important. In this study, the characteristics of coastal aquifers West and East Babolsar, using geoelectrical studies and geo-electromagnetic studied that these methods are of the...
The major histocompatibility complex (MHC) is a dynamic genome region with an essential role in the adaptive immunity of vertebrates, especially antigen presentation. The MHC is generally divided into subregions (classes I, II and III) containing genes of similar function across species, but with different gene number and organisation. Crocodylia (crocodilians) are widely distributed and repres...
The Vietnamese Binh Thuan province located along the Southern Central part of coast is one driest in country. population relying largely on groundwater for irrigation, and resources are threatened by climate change saltwater intrusion river estuaries. Recent studies, however, reveal that extension intrusions was larger than expected, raising some doubts actual origin intrusions. In this study, ...
Salt wedges divide coastal groundwater flow regime into two distinct regions that include a freshwater region above the saltwater-freshwater interface and a saltwater region below the interface. Several recent studies have investigated saltwater transport in coastal aquifers and the associated flow and mixing processes. Most of these studies, however, have either focused on studying the movemen...
Crocodilians are apex amphibious predators that occupy a range of tropical habitats. In this study, we examined whether their semi-aquatic lifestyle and ambush hunting mode are reflected in specific adaptations in the peripheral visual system. Design-based stereology and microspectrophotometry were used to assess spatial resolving power and spectral sensitivity of saltwater (Crocodylus porosus)...
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