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천연활엽수림에서의 수종간 (樹種間) 상관관계와 공변이관계의 (共變異關係) 분석
김지홍(Ji Hong Kim),권기현(Kee Hyun Kuen) 한국산림과학회 1991 한국산림과학회지 Vol.80 No.4
Utilizing chi-square test statistics, inter-species association and covariation were analyzed for the 37 woody plant species in a deciduous forest dominated by Quercus mongolica and Q. variabilis. within 50 temporarily established 20 m × 20 m square quadrats, the association for each pair of species was presented based on the presence-absence parameters. Acer palmatum had significant positive association with Acer mono and Kalopanax pictus, but negative association with Pinus densiflora. Other positively associated species pairs were Prunus sargentii-Macckia amurensis, Querczes serrata-Kalopanax pictus, Symplocos chinensis var. pilosa -Euonymus ozyphyllus, and Ulmus davidiana var. japonica-Lindera obtusiloba. The covariation far each pair of species was evaluated based on the quantitative measures, density and basal area. Overall results showed chat the association and covariation values among species generally agreed with each other. Because covariarion was calculated by density and basal area of the tallied species in the sample plots, the number of species pairs of covariation tended to be greater than those of association. Especially, Pinus densiflora, considered to be pioneer species in the successional stage, had negative covariation with most of climax species. These ecological information could be applied to silvicultural practices, such as ecosystem classification, establishment of mixed hardwood forest, and tending operations for marking crop trees and desirable species.