Summary
Stemflow inputs of magnesium and potassium were measured from 57 canopy trees representing eight species under heavy rainfall conditions in two tropical forest sites in northeast Queensland, Australia. In the premontane tropical moist forest site on the Atherton Tableland, the stemflow input per unit trunk basal area of 51 canopy trees was found to be 0.46 g m-2 of Mg2+ and 4.22 g m-2 of K+ for an average wet season rainday of 99 mm. In the wetter montane tropical rainforest site on Mount Bellenden Ker, the stemflow input per unit trunk basal area of six canopy trees was 5.55 g m-2 of Mg2+ and 9.12 g m-2 of K+ for a wet season rainday of 38 mm. These stemflow inputs from single raindays are greater than the mean annual rainfall input and are almost of the same order of magnitude as the mean annual throughfall input of these cations to areas equal to the trunk basal area from which the stemflow was collected. Stemflow cation fluxes of this magnitude are mainly attributable to the funnelling of large quantities of rainwater down the trunks of these canopy trees by their thoroughly wetted, upwardly inclined branches.
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References
Bollen W, Chen W, Lu K, Tarrant R (1967) Effect of stemflow precipitation on chemical and microbiological soil properties beneath a single alder tree. In: Trappe JM, Franklin JF, Tarrant R, Hansen G (eds) Biology of alder, Pacific Northwest Forest and Range Experiment Station, Portland, pp 149–156
Brasell HM, Gilmour DA (1980) The cation composition of precipitation at four sites in far north Queensland. Austr J Ecol 5:379–405
Brasell HM, Sinclair DF (1983) Elements returned to forest floor in two rainforest and three plantation plots in tropical. Australia J Ecol 71:367–378
Carlisle A, Brown AHF, White EJ (1967) The nutrient content of tree stem flow and ground flora litter and leachates in a sessile oak (Quercus petraea) woodland. J Ecol 55:615–627
Clements RG, Colon JA (1975) The rainfall interception process and mineral cycling in a montane rainforest in Puerto Rico. In: Howell HG, Gentry JB, Smith MH (eds) Mineral cycling in southeastern ecosystems, United States Energy Research and Development Administration, Oak Ridge, Tennessee, pp 813–823
Crozier CR, Boerner REJ (1984) Correlations of understory herb distribution patterns with microhabitats under different tree species in a mixed mesophytic forest. Oecologia (Berlin) 62:337–343
Eaton JS, Likens GE, Bormann FH (1973) Throughfall and stemflow chemistry in a northern hardwood forest. J Ecol 61:495–508
Eschner AR (1967) Interception and soil moisture distribution. In: Sopper WE, Lull HW (eds) Forest hydrology. Pergamon Press, New York, pp 191–200
Gersper PL, Holowaychuk N (1971) Some effects of stem flow from forest canopy trees on chemical properties of soils. Ecology 52:691–702
Herwitz SR (1986) Infiltration-excess caused by stemflow in a cyclone-prone tropical rainforest. Earth Surface Proc Landforms 11:401–412
Herwitz SR (1982) Tropical rainforest influences on rainwater flux. Ph.D. thesis, The Australian National University, Canberra
Jordan CF (1978) Stem flow and nutrient transfer in a tropical rain forest. Oikos 31:257–263
Manokaran N (1980) The nutrient contents of precipitation, throughfall, and stemflow in a lowland tropical rain forest in peninsular Malaysia. Malays Forester 43:266–289
McColl JG (1970) Properties of some natural waters in a tropical wet forest of Costa Rica. Bioscience 20:1096–1100
Parker GG (1983) Throughfall and stemflow in the forest nutrient cycle. Adv Ecol Res 13:57–133
Stark NM, Jordan CF (1978) Nutrient retention by the root mat of an Amazonian rain forest. Ecology 59:434–437
Voight GK (1960) Distribution of rainfall under forest stands. For Sci 6:2–10
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Herwitz, S.R. Episodic stemflow inputs of magnesium and potassium to a tropical forest floor during heavy rainfall events. Oecologia 70, 423–425 (1986). https://doi.org/10.1007/BF00379506
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DOI: https://doi.org/10.1007/BF00379506