CAJ | 학술논문

【目的】种群空间格局对阐明植物群落构建与动态具有重要意义。【方法】在广西大明山国家级自然保护区建立了一个面积3.2hm2的常绿阔叶林固定样地。运用O-ring空间点格局分析方法对样地8个优势种的空间格局以及种群大小关联和种间关联进行了研究。【结果】8个优势树种及其小径级个体在小尺度上均为聚集分布；云贵山茉莉和毛狗骨柴的大径级与其小径级个体在小尺度上呈正相关，而罗浮槭的大径级与小径级在0~40m上为负相关；58个种对中有2个种对在小尺度上表现正相关。【结论】种子扩散限制与微生境异质性是大明山常绿阔叶林优势种共存的原因。但是，有关中国亚热带常绿阔叶林的群落构建机制还有待深入研究。
【목적】충군공간격국대천명식물군락구건여동태구유중요의의。【방법】재엄서대명산국가급자연보호구건립료일개면적3.2hm2적상록활협림고정양지。운용O-ring공간점격국분석방법대양지8개우세충적공간격국이급충군대소관련화충간관련진행료연구。【결과】8개우세수충급기소경급개체재소척도상균위취집분포；운귀산말리화모구골시적대경급여기소경급개체재소척도상정정상관，이라부축적대경급여소경급재0~40m상위부상관；58개충대중유2개충대재소척도상표현정상관。【결론】충자확산한제여미생경이질성시대명산상록활협림우세충공존적원인。단시，유관중국아열대상록활협림적군락구건궤제환유대심입연구。
Objective]It is well known that the spatial pattern in plant communities plays an im-portant role in community assembly and dynamic.[Methods]We analyzed the population struc-ture of eight dominant tree species at a 3.2hm2 subtropical evergreen broadleaved forest plot in Damingshan Nature Reserve in southern China.Based on the O-ring statistic,a technique of spatial point pattern analysis,we analyzed small-scale intraspecific spatial distribution patterns and intra-or inter-specific spatial association patterns among eight dominant species.[Results]The results showed that significant aggregated for intraspecific,and for smaller trees within species at small scales.Large trees of Huodendron biaristatum and Diospyros morrisiana showed significant positive association with their smaller trees at small scales,while large tree of Acer fabric showed significant negative association with its smaller trees at all scales of 0~40m.Only 2 of 58 species pairs among these species showed significant small-scale positive as-sociation.[Conclusion]These results revealed that seed dispersal limitation and microhabitat heterogeneity might contribute to the coexistence of these dominant species at subtropical ever-green broadleaved forest in Damingshan.However,the ecological assembly rules in subtropical evergreen broadleaved forest are required to further explore in southern China.