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충북 청주지역 리기다소나무와 밤나무의 상대 생장률과 기후인자와의 관계

Relationship between Climate Factors and Relative Growth of Pinus rigida and Castanea crenata in the Cheongju Area of Chungbuk

  • 김기대 (한국교원대학교 환경교육과)
  • Kim, Kee Dae (Department of Environmental Education, Korea National University of Education)
  • 투고 : 2017.02.06
  • 심사 : 2017.03.08
  • 발행 : 2017.05.31

초록

The Diameter at Breast Height (DBH) provides information about the volume growth of a tree. In this study, we estimated the relative growth rates of Castanea crenata and Pinus rigida as 4.07% and 3.73%, respectively. Although the difference was low, we demonstrated that the growth rate of C. crenata is slightly faster than that of P. rigida. After calculating the relative growth rate for each section, we found that the relative growth of C. crenata decreased with time. However, the relative growth rate of P. rigida showed an overall increase. The gap widths of both species showed an increasing trend. However, the gradient of the two species was different. The gradient of C. crenata was approximately 12.0, but that of P. rigida was approximately 4.7. This means that the volume growth of C. crenata was faster than that of P. rigida during 4 years. However, this was relatively a short period for measuring the volume growth pattern, and we believe that additional useful information can be obtained by conducting long-term ecological monitoring. Results of canonical correspondence analysis showed that among the climate variables, temperature was significantly related to the gap widths for both species.

키워드

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