Throughfall deposition and canopy exchange processes along a vertical gradient within the canopy of beech (Fagus sylvatica L.) and Norway spruce (Picea abies (L.) Karst) Adriaenssens, S.; Hansen, K.; Staelens, J.; Wuyts, K.; De Schrijver, A.; Baeten, L.; Boeckx, P.; Samson, R.; Verheyen, K. Science of the Total Environment 420: 168-182 2012 0048-9697 10.1016/j.scitotenv.2011.12.029 https://eurekamag.com/research/056/576/056576856.php