The impact of climate change on groundwater potential recharge-A case study in the Luancheng experimental station
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Abstract:
Understanding the impact of climate change on groundwater recharge is considerably vital for the scientific management and evaluation of groundwater resources. This study coupled application of climate generator (ClimGen) with groundwater recharge model (HELP) to assess the groundwater recharge change under 3 assumed future climate scenarios (precipitation decrease 10%, T as temperature increased 2℃, and P&T) in Luancheng Agro-Ecosystem Experimental Station. The results indicated that the furture (2011~2040 yr) mean annual recharge rates in these three scenarios have been decreased by 23.33%, 4.42% and 26.01% respectively compared to the basis (1961~1990 yr), which suggested that the change of potential recharge is dominated by the variation of precipitation. This study was significant for the groundwater resources management and sustainable exploitation in North China Plain.
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