نتایج جستجو برای: groundwater fluctuation
تعداد نتایج: 54428 فیلتر نتایج به سال:
In arid and semi-arid environments, groundwater plays a significant role in the ecosystem. In the last decades, groundwater levels have decreased due to the increasing demand for water, weak irrigation management and soil damage. For the effective management of groundwater, it is important to model and predict fluctuations in groundwater levels. In this study, groundwater table in Kashan plain ...
Dune slacks are seasonal wetlands, high in biodiversity, which experience considerable within-year and between-year variations in water-table. They are subject to many pressures including climate change, land use change and eutrophication. Despite their biological importance and the threats facing them, the hydrological and nutrient parameters that influence their soil properties and biodiversi...
gol-e-gohar iron ore mine of sirjan in southern part of iran is a large open pit that operates below the groundwater table and during mining operation, dewatering is required to prevent operation processes from flooding. current operation is going on by digging wells in or out of the pit and pumping to prevent flooding. as a result of the former dewatering operation a vast deep cone of depressi...
Excessive levels of Fe, Mg and TDS are the main factors affecting groundwater quality at North Bela, Darbhanga. However, there few studies on source effect concentration in groundwater. This study takes Bela Darbhanga city Bihar state as an example, where area were analyzed. The results show that Fe platformis iron Magnesium nodules soil layer. TDS, fluctuation levelsarethe important content gr...
The complex tectonic and volcanic processes in the Ethiopian rift valley have resulted in the formation of volcano-tectonic structural depressions that became sites for many rift valley lakes. Lake Beseka is one of the rift valley lakes in the northern section of the MER near to the Afar triangle. The lake plays an important role in the ecology of birds and wildlife, as it is located in the nor...
Water reservoirs play a unique role in determining the mechanism of their impact on groundwater. The goal our study was to develop modern option an and indicator scheme assess reservoirs' groundwaters. For this purpose, methods mathematical statistics stochastic hydrology were used. Different types with different durations exploitation selected as objects. As per updated mechanism, filtration r...
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