Light availability and understory vegetation four years after thinning in a Larix leptolepis plantation of central Korea

Yo Whan Son, Young Lee Yoon, Chul Jun Young, Zin S. Kim

Research output: Contribution to journalArticle

24 Citations (Scopus)

Abstract

We measured photosynthetically active radiation (PAR) beneath the forest canopy, understory species' richness and diversity, and biomass in a Larix leptolepis plantation in central Korea 4 years after thinning. Four different thinning intensities (control, 10%, 20%, and 40% stocking reduction) were applied in 1997. Mean annual intercepted PAR at 30 cm and 1 m above ground level was significantly different among the thinning intensities and strongly correlated with the number of stems remaining after thinning. Understory species richness and diversity were lowest in the unthinned stands and increased with thinning intensity, and there were significant correlations between the total number of understory species or diversity index (Shannon's diversity index, H′) and the number of stems per hectare after thinning. Also understory above-ground biomass was significantly increased with thinning intensity in both sampling months (June and August 2001). Thinning increased light inputs to the ground and resulted in higher species richness and diversity and above-ground biomass. These results suggested that light availability and understory responses to thinning at a comparable intensity are likely to last well beyond the 4 years of this study.

Original languageEnglish
Pages (from-to)133-139
Number of pages7
JournalJournal of Forest Research
Volume9
Issue number2
DOIs
Publication statusPublished - 2004 Dec 1

Fingerprint

Larix
Larix kaempferi
light availability
Korea
thinning (plants)
Biomass
understory
Korean Peninsula
thinning
plantation
plantations
Light
vegetation
Radiation
species diversity
species richness
aboveground biomass
photosynthetically active radiation
diversity index
stem

Keywords

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

ASJC Scopus subject areas

  • Agricultural and Biological Sciences (miscellaneous)

Cite this

Light availability and understory vegetation four years after thinning in a Larix leptolepis plantation of central Korea. / Son, Yo Whan; Yoon, Young Lee; Young, Chul Jun; Kim, Zin S.

In: Journal of Forest Research, Vol. 9, No. 2, 01.12.2004, p. 133-139.

Research output: Contribution to journalArticle

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