摘要
为了探究物种整体和不同生长阶段的空间分布格局,并研究种群分布格局与生境空间异质性的关系,以小秦岭自然保护区2个1 hm2样地调查数据为基础,采用点格局分析法对群落在完全空间随机以及异质性泊松分布下的空间分布格局进行对比研究,结果表明:两样地物种均受到生境异质性的显著影响,两个样地内的生境适合物种的生长,而且物种受到生境异质性的影响主要表现在大尺度上;此外,成年树与小树的空间格局相似,但小树更容易受到生境异质性的影响.结果较好地反映了小秦岭物种的空间分布格局,并为更好的保护和利用小秦岭自然保护区内的植物资源提供科学依据.
To explore the spatial distribution pattern of species and of different growth stages,and to study theinfluence of habitat heterogeneity on spatial distribution pattern,based on the foundamental data of two 1 hm^2 plots in Xiaoqinling nature reserve,Henan,we used the point pattern analysis to compare the difference of spatialdistribution pattern between under complete spatial randomness and under heterogeneous Poisson process. Resultsshowed as follows. In both plots,the species are significantly affected by the habitat heterogeneity,the habitat inthese two plots are suitable for plants to growth,and the influence of habitat heterogeneity on species are mainlyshowed at large scales. Moreover,the spatial patterns of adult and sapling are similar,but the saplings are moreeasily affected by habitat heterogeneity. In this paper,the results reflect the spatial distribution patterns ofspecies in Xiaoqinling nature reserve,and provide a scientific basis to better protect and use the plant resources inXiaoqinling nature reserve.
出处
《河南科学》
2016年第2期214-218,共5页
Henan Science
基金
河南省科技攻关(132102110133)
河南省教育厅科学技术研究重点项目(14A180013)
关键词
物种
空间分布格局
点格局分析法
生境异质性
species
spatial distribution pattern
point pattern analysis
habitat heterogeneity
作者简介
郭磊（1989-），男，硕士研究生，主要研究方向为森林生态学
通信作者：袁志良（1976-），男，副教授，博士，主要研究方向为植物生态学．
