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Responses of morphology development of Pinus koraiensis trees to quantitative regulation of individual growth space

첫 페이지 보기
  • 발행기관
    강원대학교 산림과학연구소 바로가기
  • 간행물
    강원대학교 산림과학연구소 학술대회 바로가기
  • 통권
    2021 International Symposium of Institute of Forest Science (2021.10)바로가기
  • 페이지
    pp.23-23
  • 저자
    Hailong Shen, Xiao Ma, Peng Zhang, Yuanke Gao
  • 언어
    영어(ENG)
  • URL
    https://www.earticle.net/Article/A450408

원문정보

초록

영어
The zonal climax in humid temperate areas in East Asia is the Primary Mixed Forest of Korean Pine and Broadleaved Tree Species and most of them has been derived into secondary forest currently. Many of the secondary forest has become the mixed forest by artificially planted Korean pine and naturally regenerated broadleaved leaved tree species through the dynamic management approach of “planting conifers and reserving broadleaved tree species” in Northeast China’s temperate forest region. For promoting the growth of Korean pine trees and broadleaved trees harmoniously, microspace of individual trees of Korean pine was quantitatively regulated according to Opening Degrees (OP=1.0, 1.5 and 2.0) and the morphological development of Korean pine trees was elucidated by long time positioning investigation from 12 sample plots in 3000 m2 in University Forest of Northeast Forestry University at Maoershan, which is located in Maoershan Town, Shangzhi City, Heilongjiang Province, China. The results were shown as follows: (1) the ratio of lower 2 wheel lateral branch base diameter to diameter at breast height (BBD/DBH) could be the indicator of under canopy Korean pine tree light environment, the smaller the better; (2) the response patterns of height, diameter, crown width and individual tree volume of different age-class Korean pine trees to each OP were different, OP=2.0 was significantly better than other two OPs for 30-year-old and 15-year-old Korean pine populations but no certain pattern for that of 9-year-old Korean pine population, especially, the individual volume of Korean pine trees in OP=2.0 were 197% and 113% higher than that of OP=1.0 and 1.5 respectively for 30-year-old population and 212% and 343% for 15-year-old population but no evident changes for 9-year-old population; ten year data of height, diameter and individual volume showed the same patterns; (3) 28.2% Korean trees in OP=2.0 for 30-year-old population has reached to the upper tree canopy height but only 4.1% and 1.1% for other two OPs. Conclusion: Opening degree 2.0 treatment for Korean pine tree was the proper one that could promote fast growth of under-canopy planted Korean pine trees.

키워드

Pinus koraiensis Under-canopy Planting Morphological development Individual growth space Opening degree

저자

  • Hailong Shen [ Northeast Forestry University, Harbin 150040, P.R.China ] Corresponding Author
  • Xiao Ma [ Northeast Forestry University, Harbin 150040, P.R.China ]
  • Peng Zhang [ Northeast Forestry University, Harbin 150040, P.R.China ]
  • Yuanke Gao [ Northeast Forestry University, Harbin 150040, P.R.China ]

참고문헌

자료제공 : 네이버학술정보

간행물 정보

발행기관

  • 발행기관명
    강원대학교 산림과학연구소 [Institute of Forest Science Kangwon National University]
  • 설립연도
    1975
  • 분야
    농수해양>임학
  • 소개
    강원대학교부설산림과학연구소(이하 “연구소”라 한다)는 산림에 관한 제반 학술적 연구를 통하여 산림자원의 효용을 밝히고 임업 및 임산업의 발전에 기여함을 목적으로 한다.

간행물

  • 간행물명
    강원대학교 산림과학연구소 학술대회
  • 간기
    부정기
  • 수록기간
    2017~2024
  • 십진분류
    KDC 526 DDC 634

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