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논문 기본 정보

자료유형
학술저널
저자정보
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강원대학교 산림과학연구소 Journal of forest and environmental science Journal of forest and environmental science 제34권 제4호
발행연도
2018.1
수록면
338 - 351 (14page)

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This study was conducted in a long-term experimental forest in the central hardwoods region of southwestern Michigan to retrospectively examine the role of past forest management practices and climate on red oak (Quercus rubra L.) productivity. Initially, in 1971, plots within the experimental forest were treated separately with a clearcut and shelterwood regeneration harvest in an attempt to increase red oak regeneration. From 1987-1989, a new study was initiated within a portion of the clearcut and shelterwood plots to evaluate the effectiveness of additional oak crop tree release using mechanical and chemical applications. Cumulative diameter and mortality rates of 719 red oaks were monitored across the four silvicultural treatments: Clearcut-A (clearcut without additional release treatment), Clearcut-B (clearcut with additional release treatment), Shelterwood-A (shelterwood without additional release), and Shelterwood-B (shelterwood with additional release) plus an untreated control. Increment cores were obtained from red oak trees and neighboring competitor species. Tree-ring analyses (dendrochronology) were applied to examine the effect of these silvicultural treatments and climatic factors (temperature and precipitation) on red oak productivity. The results indicated that crop tree release following a clearcut or shelterwood harvest reduced mortality rates and thus increased survival of red oak. Red oak in control plots or plots only receiving the initial regeneration harvesting treatment and no additional competition release were negatively affected by climatic stress, which included summer moisture stress. In contrast, red oak in plots that received the competition release treatment from shade tolerant tree species not only had higher tree level productivity (i.e., tree basal area) and lower mortality rates, but were also relatively more resilient to climatic stress by showing limited or no associations between climate and growth.

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참고문헌 (65)

참고문헌 신청
Abrams MD / 1998 / Tree-ring responses to drought across species and contrasting sites in the ridge and valley of central Pennsylvania / For Sci 44:550~558 google schola Allen CD / 2010 / A global overview of drought and heat-induced tree mortality reveals emerging climate change risks for forests / For Ecol Manage 259:660~684 Crossref Andrzejczyk T / 2015 / Effect of spacing on growth and quality parameters in sessile oak (Quercus petraea) stands in central Poland: results 7 years after planting / Scand J For Res 30:710~718 Crossref Brose PH / 2013 / A meta-analysis of the fire-oak hypothesis: does prescribed burning promote oak reproduction in eastern North America / For Sci 59:322~334 google schola Buckley DS / 1998 / Regeneration of northern red oak: positive and negative effects of competitor removal / Ecol 79:65~78 Crossref

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