济源市王屋山地区乔木物种多样性的垂直分布格局

Vertical Distribution Pattern of Arbor Species Diversity in Wangwushan Area of Jiyuan City

本文主要调查了2019年5—8月太行山猕猴国家级自然保护区天坛山管护区内乔木在700~1700 m海拔区间的垂直变化趋势。结果表明:在海拔700~1700 m范围内,共有乔木38种,属于15科23属,其中壳斗科的栎属占据绝对优势;乔木物种数量随海拔变化具有明显的不规律性,但总体趋势维持稳定;乔木在总体海拔区段内多样性指数为H′=1.00±0.39,随海拔的升高呈不规则分布;乔木的整体均匀度指数E=0.57±0.15,在海拔区段内具有多样的变化。乔木物种多样性指数与均匀度指数之间具有显著的正相关关系。

This paper mainly investigated the vertical change trend of arbors in the 700-1700 m altitude range in the Tiantan Mountain Conservation Area of the Taihang Mountain Macaque National Nature Reserve from May to August 2019.The results showed that in the 700-1700 m altitude range,there were 38 species of arbors,belonging to 15 families and 23 genera,among which,Quercus of Fagaceae had an absolute advantage.The number of arbor species showed obvious irregularities with altitude change,but the overall trend remained stable.The diversity index of arbors in the overall altitude range was H′=1.00±0.39,and it was distributed irregularly with increase of altitude.The overall evenness index of the arbors was E=0.57±0.15,which had various changes in the altitude range.There was a significant positive correlation between tree species diversity index and evenness index.