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ISSN : 2287-8327

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Vol.27 No.6
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Changes in understory Vegatation of a Thinned Japanese Larch(Larix leptolepis) Plantation in Yangpyeong, Korea

Journal of Ecology and Environment / Journal of Ecology and Environment, (P)2287-8327; (E)2288-1220
2004, v.27 no.6, pp.363-367









& (2004). Changes in understory Vegatation of a Thinned Japanese Larch(Larix leptolepis) Plantation in Yangpyeong, Korea. Journal of Ecology and Environment, 27(6), 363-367.
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Abstract

Photosyntheticaly active radiation (PAR) beneath the forest canopy, understory species richnessand diversity, and biomass were measured in a Larix leptolepis plantation seven years after thinning in 1997. The current PAR values were lower than those measured four years after thining, and PAR at the heavy thinning plots was significantly higher than that of other thining intensities. A total of 23 species including 9 tal-trees and 14 shrubs were found for the high layer while a total of 82 species including 10 tal-tres, 29 shrubs, and 43 herbs for the low layer. Species richness and diversity generaly increased with thinning intensities, and the trends were more evident for the low layer. Aboveground biomass significantly difered among thining intensities for both shrubs and herbs. Also there was a negative correlation between biomass and the current forest floor, species richness and diversity and production of understory vegetation continued seven years after the treatment.

keywords
Biomass, Larix leptolepis, Photosynthetically active radiation (PAR), Species diversity, Species richness, Thinning, Biomass, Larix leptolepis, Photosynthetically active radiation (PAR), Species diversity, Species richness, Thinning

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