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상수리나무 임분 내에서 벌채 유형에 따른 조림목의 생장 특성 KCI 등재

Growth Characteristics of Trees following Different Types of Cutting in Quercus acutissima Stand

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한국환경과학회지 (Journal of Environmental Science International)
한국환경과학회 (The Korean Environmental Sciences Society)
초록

The objective of this study was to evaluate the effect of cutting types on microclimate and growth characteristics of afforested tree in Quercus acutissima stand after different types of cutting. The difference in temperature reaching 5.2℃ was shown in between clear cutting and selective cutting treatments. On July and August days with temperatures more than 35℃ often appeared in clear cutting stand. The values of VPD in July and August were higher than those in other months. Maximum VPD of 3.99 kPa was shown in clear cutting stand on May 23 as a prolonged rainless days appeared. However, VPD in selective cutting stand always stayed under 3.0 kPa throughout growing season. A higher intensity was shown in clear cutting and strip clear cutting stands, reaching to more than 1,600 μmol m-2 s-1 at midday on early August, while that in selective cutting stand stayed about 1,500. In relative growth rate selective cutting stand showed a significantly higher relative growth rate in plant height than those in other cutting stands (p<0.05). The number of leaf in current-year branches significantly increased in selective cutting stand, whereas no increase was shown in clear cutting and strip clear cutting stands (p<0.05). In addition, relative elongation rate of current year branch also showed higher values in selective cutting stand compared with that in strip clear cutting stand (p<0.05). However, leaf mass per unit area (LMA) was higher in order of strip clear cutting, clear cutting, and selective cutting stands.
From these results it is concluded that environmental conditions in clear cutting and strip clear cutting stands during growing season are more stressful to afforested tree species, resulting in lower relative growth in plant height, elongation of current-year branches, and leaf number per branch compared with those in selective cutting stand. Consequently, more data must be accumulated in the field to find out best cutting type in plantation considering the adaptational characteristic of each tree species varies with species and life span of tree is long.

목차
Abstract
 1. 서 론
 2. 재료 및 방법
  2.1. 조사지 현황
  2.2. 미기상 변화
  2.3. 조림수의 생장특성 조사
 3. 결과 및 고찰
  3.1. 미기상 환경 특성
  3.2. 조림목의 생장 특성
 참 고 문 헌
저자
  • 신유승(청주대학교 생명과학과) | Yu-Seung Shin (Department of Life Science, Cheongju University)
  • 박용목(청주대학교 생명과학과) | Yong Mok Park (Department of Life Science, Cheongju University) Corresponding author
  • 송선화(고려대학교 환경생태공학부) | Sun-Hwa Song (Department of Environmental Science and Ecological Engineering)
  • 양아람(국립산림과학원 산림생산기술연구소) | A-Ram Yang (Forest Practice Research Center, Korea Forest Research Institute)
  • 황재홍(국립산림과학원 산림생산기술연구소) | Jaehong Hwang (Forest Practice Research Center, Korea Forest Research Institute)