摘要
辽宁省彰武地区属半干旱风沙区,生态环境恶劣,野生山里红是该地区的主要树种之一,对当地生态环境的影响有着举足轻重的作用。因此,对野生山里红进行合理的保护及开发利用十分必要。通过野外调查和室内分析相结合的方法,对辽宁彰武地区野生山里红种群分布格局以及群落特征进行了研究。结果表明:(1)辽宁彰武地区野生山里红种群空间分布格局为聚集分布,且聚集度高;(2)辽宁彰武地区野生山里红群落物种丰富度指数、多样性指数以及均匀度指数均偏低,该地区物种类型较为单一,且分布不均匀,多样性小;(3)辽宁彰武地区野生山里红群落中,杨树重要值最大,为绝对优势树种,野生山里红和榆树为该群落的次优势树种。
Zhangwu areas in Liaoning Province is a semi-arid sandy area,with harsh environment;wild Crataegus pinnatifidais one of the main tree species in the region and plays an important role in local ecological environment.Through field investigation &laboratory analysis methods,population distribution patterns and community characteristics of wild Crataegus pinnatifidain Zhangwu areas were studied.Result shows that:(1)Spatial distribution pattern of wild Crataegus pinnatifida population in Zhangwu area is aggregated distribution,with higher aggregation-degree;(2)Richness,diversity and evenness index of species for wild Crataegus pinnatifidain Zhangwu area of Liaoning Province are all low,the type of species in the region is single,and the distribution is uneven,diversity being small;(3)Among wild Crataegus pinnatifida communities in Zhangwu area of Liaoning Province,the important value of poplar are the largest,being the absolute dominant tree species;wild Crataegus pinnatifidaand Ulmus pumilaare subdominant tree species for this community.
出处
《防护林科技》
2016年第4期55-59,共5页
Protection Forest Science and Technology
关键词
半干旱地区
野生山里红
种群
分布格局
群落特征
semiarid area
wild Crataegus pinnatifida
population
distribution pattern
community characteristics
