Articles | Volume 19, issue 4
Hydrol. Earth Syst. Sci., 19, 1961–1976, 2015
https://doi.org/10.5194/hess-19-1961-2015

Special issue: Groundwater resources and their ecosystem services: new methods...

Hydrol. Earth Syst. Sci., 19, 1961–1976, 2015
https://doi.org/10.5194/hess-19-1961-2015

Research article 23 Apr 2015

Research article | 23 Apr 2015

Estimation of temporal and spatial variations in groundwater recharge in unconfined sand aquifers using Scots pine inventories

P. Ala-aho et al.

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Cited articles

Aartolahti, T.: Morphology, vegetation and development of Rokuanvaara, an esker and dune complex in Finland, Societas geographica Fenniae, Helsinki, 1973.
Ala-aho, P., Rossi, P. M., and Kløve, B.: Interaction of esker groundwater with headwater lakes and streams, J. Hydrol., 500, 144–156, https://doi.org/10.1016/j.jhydrol.2013.07.014, 2013.
Ala-aho, P., Rossi, P. M., Isokangas, E., and Kløve, B.: Fully integrated surface–subsurface flow modelling of groundwater–lake interaction in an esker aquifer: Model verification with stable isotopes and airborne thermal imaging, J. Hydrol., 522, 391–406, https://doi.org/10.1016/j.jhydrol.2014.12.054, 2015.
Allen, R., Pereira, L., Raes, D., and Smith, M.: Crop evapotranspiration – Guidelines for computing crop water requirements, Food and Agriculture Organization of the United Nations, Rome, 1998.
Assefa, K. A. and Woodbury, A. D.: Transient, spatially-varied groundwater recharge modelling, Water Resour. Res., 49, 1–14, https://doi.org/10.1002/wrcr.20332, 2013.
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Short summary
We present a novel simulation method for estimating spatially distributed and transient groundwater recharge in unconfined sandy aquifers. The approach uses field data for the most important parameters affecting groundwater recharge and accounts for parameter uncertainty. The results show that tree canopy cover is the most important factor in controlling groundwater recharge at our study area. Tree canopy is thinned by forestry, which may lead to a significant increase of groundwater recharge.