CAJ | 학술논문

采用样方法对戴云山罗浮栲林群落进行调查,分析了罗浮栲林群落主要树种空间分布格局.结果表明,罗浮栲林群落乔木层主要树种中,小径阶(胸径≤10 cm)林木占总株数的56. 9%,其中云山青冈、树参呈随机分布,其它主要树种均呈集群分布,与林分总体分布格局一致;中径阶(10 cm＜胸径≤30 cm)林木占总株数的35. 7%,其聚集程度降低;大径阶(胸径＞30 cm)林木占总株数的7. 4%,除罗浮栲呈集群分布,其余树种趋于随机分布,其分布格局主要与物种生物学特性和种群间的竞争排斥有关,且与物种的生境有密切联系.灌木层主要树种均呈集群分布.
채용양방법대대운산라부고림군락진행조사,분석료라부고림군락주요수충공간분포격국.결과표명,라부고림군락교목층주요수충중,소경계(흉경≤10 cm)림목점총주수적56. 9%,기중운산청강、수삼정수궤분포,기타주요수충균정집군분포,여림분총체분포격국일치;중경계(10 cm＜흉경≤30 cm)림목점총주수적35. 7%,기취집정도강저;대경계(흉경＞30 cm)림목점총주수적7. 4%,제라부고정집군분포,기여수충추우수궤분포,기분포격국주요여물충생물학특성화충군간적경쟁배척유관,차여물충적생경유밀절련계.관목층주요수충균정집군분포.
The quadrate method was adopted to investigate community in Castanopsis fabri forest of Dainyun Mountain,and the spatial distribution pattern of dominant trees in Castanopsis fabri community was analyzed. The results showed that:(1) small diameter class with DBH less than 10 cm accounted to 56. 9% in the main species of tree layer in Castanopsis fabri community, with Cyclobalanopsis sessilifolia, Dendropanax dentiger distributed randomly,the other main species distributed contagiously, and was similar to the distribution pattern of the whole forest.(2)Medium diameter class with DBH range from 10 cm to 30 cm accounted to 35. 7% in the main species of tree layer in Castanopsis fabri community had lower aggregation degree. (3) Diameter class with DBH above 30 cm accounted to 7. 4% in the main species of tree layer in Castanopsis fabri community,and were distributed in random distribution of all the species excluded for Castanopsis fabric distributed contagiously. The patterns were not only closely related to the biological characteristics and relationship between the competition and exclusion of populations,but also to the living environment of all the species. (4) All the tree species in shrub layer were contagiously distributed.