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KMID : 1161519990030020143
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Animal Cells and Systems
1999 Volume.3 No. 2 p.143 ~ p.147
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Significance of aspect and understory type to leaf litter redistribution in a temperate hardwood forest
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Lee Do-Won
Yoo Ga-young
Oh Sung-Jin
Shim Jee-H.
Kang Sin-Kyu
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Abstract
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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 gm?2 yr?1 in the three patches from 1994 to 1998. From mid?September 1996 to mid?September 1997, net transport of leaf litter over patch boundaries was 1,824 g m?1 from Patch S to SS, 1,465 g 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 588gm?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 724gm?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
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KEYWORD
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Aspect, Hardwood forest, Leaf litter, Patch, Understory
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