辽宁西北部地区乔木群落与环境关系研究

为解决辽宁省西北部地区造林困难的问题,对乔木林群落与环境的关系进行研究,采用DCCA排序法分析乔木与环境因子的关系,应用Canoco软件进行数据处理。经过结果分析得出,环境因子之间存在显著的相关性,坡位、坡度、海拔、土壤类型是影响乔木植物分布的主要因子。根据树种和样地的DCCA排序图,划分出5种群落的划分,明确了群落适宜的生长环境。通过环境因子对物种分布格局的解释能力分析,环境因子解释了45.3%的植被格局。

The Relationship Between Arbor Communities and Environment in the Northwest of Liaoning Province

In ordered to solve the problem of afforestation difficulty in the in the northwest of Liaoning Province, the paper studied on the relationship between the arbor communities and environment, by DCCA, and used the Canoco software to processes the data. Through the analysis of the data, concluded that: between the environmental factors had significant correlation. The main factors affecting the shrub community distribution was the altitude, slope, slope positionsand soil type. According to the species and sample DCCA sequence diagram, could found that the arbor can be divided into five communities, and found the suitable growth environment of arbor community. Through the quantitative analyzed of the impaction between environment variables and species distribution, the environmental factor explained 45.3% of the vegetation pattern.