نوع مقاله : مقاله پژوهشی
نویسندگان
1 دانشیار گروه آب دانشکده کشاورزی، دانشگاه صنعتی اصفهان
2 کارشناس سد و شبکه، شرکت آب منطقهای لرستان
چکیده
کلیدواژهها
عنوان مقاله [English]
نویسندگان [English]
The increasing demand for water has increased the awareness towards application of the artificial recharge of groundwater. Artificial recharge is a method of storing water underground in times of water surplus to meet the demand in the times of shortage. The objective of this research was to evaluate the efficiency of Bagh-e-Sorkh floodwater spreading and artificial recharge system on water table stage, and to understand the role of this system on groundwater quality in the area. For evaluation of these projects on the discharge of wells and qunats, the aquifer of the south of Shahreza Plain was selected. The area that affects of this aquifer is about 1570 km2. In this plain, data of 20 observation wells and discharge of some important qunats for 5 years before the construction (1365-1381) were analyzed. The results show very good effect on the ground water level and discharge of qunats. Annual fluctuation of water level shows rise in groundwater table after storing water by these projects in spite of an increase in exploitation. The first and second time flooding occurred in 1371 and 1377 and seems to have had the highest influence on raising the groundwater level. Reduction of infiltration, evaporation from a floodwater spreading systems, overuse of groundwater resources by farmers, particularly in dry seasons, and the occurrence of recent severe drought period entails the least efficiency of this system.
کلیدواژهها [English]
16. Wulff, H. E. 1968. The qunats of Iran, Sci. Am., Vol. 218, No. 4, 94-105