Key points are not available for this paper at this time.
E. D. Ford, J. D. Deans, The Effects of Canopy Structure on Stemflow, Throughfall and Interception Loss in a Young Sitka Spruce Plantation, Journal of Applied Ecology, Vol. 15, No. 3 (Dec., 1978), pp. 905-917
Ford et al. (Fri,) studied this question.