Significance of Aspect and Understory Type to Leaf Litter Redistribution in a Temperate Hardwood Forest

Lee, Do-Won; Yoo, Ga-Young; Oh, SungJin; Shim, Jee H.; Kang, Sin-Kyu

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자료유형: 학술저널

저자정보: Lee, Do-Won (Department of Environmental Planning, Graduate School of Environmental Studies, Seoul National University) Yoo, Ga-Young (Department of Environmental Planning, Graduate School of Environmental Studies, Seoul National University) Oh, SungJin (Department of Environmental Planning, Graduate School of Environmental Studies, Seoul National University) Shim, Jee H. (Department of Environmental Planning, Graduate School of Environmental Studies, Seoul National University) Kang, Sin-Kyu (Department of Environmental Planning, Graduate School of Environmental Studies, Seoul National University)

저널정보: 한국통합생물학회 Korean journal of biological sciences Korean journal of biological sciences 제3권 제2호

발행연도: 1999.1

수록면: 143 - 147 (5page)

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Annual production and redistribution of leaf litter were compared among three distinct understory patches in a temperate hardwood forest dominated by Quercus mongolica, Kalopanax pictus, Acer pseudo-sieboldianum, and Carpinus cordata. Two patches were located on a southwest-facing slope: one with an understory dominated by herbaceous plants (Patch S), and the other covered with evergreen dwarf bamboo, Sasa borealis (patch SS). The third patch was on the opposite slope with an understory dominated by herbaceous plants (Patch N). Annual leaf litterfall was averaged 330 g m$^{-2} yr$^{-2}$ in the three patches from 1994 to 1998. From mid-September 1996 to mid-September 1997, net transport of leaf litter over patch bound-aries was 1,824g m$^{-1}$ from Patch S to SS, 1,465g m$^{-1}$ from Patch S to N, and 886 g m$^{-1}$ from Patch SS to N. The amounts moving downslope out of Patch S, SS, and N were 2,548, 471, and 588g m$^{-1}$, respectively. When a mass balance approach was employed for the data of leaf litter transport, the results were relatively consistent with 216, 631, and 724g m$^{-2}$ of leaf litter stores in Patch S, SS, and N, respectively, in April 1997. This study suggests that leaf litter redistribution is largely regulated by aspect and understory type and exerts a significant effect on carbon processes in the forest ecosystem.

#Aspect #Hardwood forest #Leaf litter #Patch #Understory

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