CAJ | 학술논문

基于皇藏峪自然保护区青檀Pteroceltis tatarinowii次生林的样地调查数据,研究群落的物种组成以及优势种群径级结构,并采用点格局 O-ring 统计法对群落内优势种的空间分布格局及种间关联性进行多尺度分析.结果表明:(1)样地内共有维管植物28科43属48种.植物区系组成以温带成分为主(67.44%),同时含有较多的热带区系成分(32.56%),呈现出由温带向亚热带过渡的特征.(2)群落内优势树种的径级结构存在一定差异:青檀和栓皮栎Quercus variabili种群径级结构呈逆“J”型,幼龄级个体较为丰富,种群更新良好,均属增长型种群;黄连木Pistacia chinensis种群径级结构呈纺锤型,个体主要集中在成树阶段,随着群落演替的进展,种群将趋于衰退.(3)从优势种的空间分布格局来看,青檀和栓皮栎在小尺度上呈聚集分布,随着尺度的增加,趋于随机分布;黄连木在整个空间尺度上均表现为随机分布.(4)栓皮栎与青檀、黄连木在中等尺度上表现为显著负关联性,其余树种间在整个尺度上均无关联性.青檀次生林群落目前处于演替的初级阶段.
기우황장욕자연보호구청단Pteroceltis tatarinowii차생림적양지조사수거,연구군락적물충조성이급우세충군경급결구,병채용점격국 O-ring 통계법대군락내우세충적공간분포격국급충간관련성진행다척도분석.결과표명:(1)양지내공유유관식물28과43속48충.식물구계조성이온대성분위주(67.44%),동시함유교다적열대구계성분(32.56%),정현출유온대향아열대과도적특정.(2)군락내우세수충적경급결구존재일정차이:청단화전피력Quercus variabili충군경급결구정역“J”형,유령급개체교위봉부,충군경신량호,균속증장형충군;황련목Pistacia chinensis충군경급결구정방추형,개체주요집중재성수계단,수착군락연체적진전,충군장추우쇠퇴.(3)종우세충적공간분포격국래간,청단화전피력재소척도상정취집분포,수착척도적증가,추우수궤분포;황련목재정개공간척도상균표현위수궤분포.(4)전피력여청단、황련목재중등척도상표현위현저부관련성,기여수충간재정개척도상균무관련성.청단차생림군락목전처우연체적초급계단.
Based on the investigation of the secondary forest of Pteroceltis tatarinowii in Huangcangyu Nature Reserve from Anhui province, the species composition and the diameter-class structure of its dominant tree populations were examined and the spatial distribution patterns and interspecific correlations of its dominant tree populations were also analyzed in multiple scales by a point pattern analysis method, which was the O-ring statistics. The results were as follows: (1) there were 48 species of 43 genera belonging to 28 families of vascular plants in the community. The flora showed a transition which owned an obvious temperate zone character (67.44%) and abundant tropic zone taxa (32.56%) at the same time; (2) there existed some differences among the diameter-class structure of dominant tree populations in the community. The populations of P. tartarinowii and Quercus variabilis which were growth populations exhibited a reverse-J-shaped diameter-class structure and there were relatively abundant young individuals in them; however, the population of Pistacia chinensis which had fewer young but more old individuals exhibited a spindle type one and would decline with the development of community succession;(3) the spatial patterns of P. tatarinowii and Q. variabilis were aggregation distribution at relatively smaller scales and tended to be random distribution with increasing scales, while that of P. chinensis exhibited random distribution at all scales; (4) Q. variabilis had a significant negative correlation with P. tatarinowii and P. chinensis at medium scale, whereas no correlation was found between other species. Thus, it was concluded that the secondary forest of P. tatarinowii of Huangcangyu Nature Reserve of Anhui Province was at primary stage of succession at present.