Estimation of groundwater balance for the Pabbi region, Khyber Pakhtunkhwa
Keywords:
Pabbi; Pakistan; Groundwater balance; Rainfall; Discharge and water logging.Abstract
This paper presents the study carried out to estimate groundwater balance for the Pabbi Region, Khyber Pakhtunkhwa. Due to heavy rainfall, excessive irrigation and seepage from irrigation canals, the adjacent areas of Kabul River in the study area have suffered from water logging for a long time. It has been calculated that the recharge to groundwater storage due to seepage from canals and their distributaries flowing in the Pabbi Region is 26 mm/year. According to the data collected from Pakistan Meteorological Department, Peshawar, mean annual rainfall of Pabbi Region is 262.77 mm/year and recharge due to rainfall is calculated as 60.63 mm/year. Discharge through tube wells and hand pumps in the area are estimated as 35 mm/year and 14 mm/year respectively. It has been concluded that the average increase in groundwater level in the study area is 37.63 mm/year.
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