徐州市人工侧柏林的群落结构及物种多样性分析

以徐州周围山地人工侧柏林为研究对象,在全面勘察的基础上,建立了10块具有代表性的调查样地.通过对群落的生境条件、种类组成和结构等的调查,详细分析了徐州市现有侧柏林的群落结构和物种多样性.分析结果显示,徐州周围山地现有人工侧柏林群落结构简单,物种丰富度和多样性较低,生长更新缓慢.建议引种朴树、臭椿、黄连木、三角槭、梧桐、女贞等树种,以改造林相,促进地带性植被的恢复.

Study on the Community Structure and Species Diversity of the Platycladus orientalis Plantation Forests in Xuzhou

Based on the all-around surveys,we investigated the Platycladus orientalis plantation forests in Xuzhou,and set up ten typical survey plots.By surveying the habitat conditions,the species composition and the structure of the plant community,the paper analyzed the community structure and species diversity of the actual Platycladus orientalis forests in Xuzhou.The results show that the actual Platycladus orientalis forests in Xuzhou have simple community structure,lower species richness and species diversity,slower growth and regeneration of the forests.In view of these facts,we suggest to plant Celtis sinensis,Ailanthus altissima,Pistacia chinensis,Acer buergerianum,Firmiana simplex,Ligustrum lucidum for reforming the forest aspect of the actual platycladus orientalis forests in Xuzhou,promoting the restoration of the zonal vegetation in Xuzhou.