山西霍山荆条群落的生态特征及其空间分布的研究

根据野外调查的样地资料,本文分析了分布于山西霍山的荆条灌丛群落的种类组成,区系成分,外貌特征,垂直结构等基本生态学特征;统计分析了霍山上荆条灌丛的分布格局.结果表明:该群落种类组成非常丰富;区系成分以北温带分布为主;生活型以地上芽植物和一年生植物占优势;垂直分化明显,一般为乔木层、灌木层、草本层、地被层四层, 灌木层和草本层为优势片层;群落中荆条种群的分布格局为集群型,其他种群则多近似均匀型分布.

Study on ecological feature and spatial distribution pattern of Vitexnegundo var hetero-phyiia community in Huoshan Mountain of Shanxi Province

According to the data of field plots,in this paper the preliminary characteristics such as the floristic composition,the geographical elements,the physiognomy characteristics and the vertical structure of Vitexnegundo var hetero-phyiia community in Huoshan Mountain of Shanxi Province was dealt with;the spatial distribution pattern of Vitexnegundo var hetero-phyiia community was also analyzed.The results show that the floristic composition of the community is plentiful,the temperate floristic elements occupy a dominant position,Therophytes and Chamaephy is dominant,the vertical structure is obvious and can be commonly divided into four layers: the trees stratum,the shrub stratum,the herb stratum and ground stratum,in which the dominant layer was shrub stratum and herb stratum.The spatial distribution pattern of Vitexnegundo var hetero-phyiia population is commonly clumped type;the spatial distribution pattern of other populations is mostly between uniform types and random type.