伏牛山自然保护区锐齿栎林的空间格局

Spatial Pattern of Quercus acutidentata Population in Funiushan Mountain Nature Reserve

为探索伏牛山自然保护区锐齿栎种群的数量特征,为锐齿栎的保护和合理利用提供理论依据,在伏牛山自然保护区设置样地,通过锐齿栎种群的垂直样地调查,研究其分布格局。结果表明:伏牛山自然保护区锐齿栎种群的分布格局呈集群分布,种群的发育阶段和海拔梯度对种群的分布和聚集程度均有不同程度影响;随着种群径级结构的增长,锐齿栎种群的聚集度降低;随海拔高度的增加锐齿栎空间分布指数呈低—高—低的变化格局。

The distribution pattern of Q. acutidentata population was studied by surveying vertical sample plots of Q. acutidentata populations in Funiushan Mountain Nature Reserve to probe the quantity characteristics of Q. acutidentata populations and to provide the scientific basis for protection and rational utilization of Q. acutidentata resource. The results showed that the distribution pattern of Q. acutidentata populations presented a contagious distribution type, the population development stage and altitudinal gradient had different effects on distribution and aggregated degree of Q. acutidentata populations, the aggregated degree of Q. acutidentata populations reduced with diameter structure increment of Q. acutidentata population and the spatial distribution index of Q. acutidentata showed the low-high-low pattern with altitudinal increment.