摘要
城市半自然森林具有独特的群落结构和生物多样性特征,研究城市化影响的半自然森林更新特征,可以为城市生物多样性保育与地带性植被恢复重建提供借鉴。文章以上海辰山残存半自然森林1 hm^2固定监测样地为对象,调查分析半自然森林更新苗的物种组成特征。结果表明:1 hm^2样地更新苗共5 937株,分属22科32属37种,其中上海自然分布的乡土种占57.89%,明显高于城市人工林的乡土树种比例;香樟、构树、天竺桂、朴树和小蜡等5种更新苗占总数的57.2%,聚集性分布格局明显;在11个植被群落类型中,各类型更新苗的丰富度普遍较高,不同树种的更新苗存活和发育潜力存在差异。
Urban semi-natural forest has unique community structure and biodiversity characteristics. The research on the urbanization affected regeneration characteristics of semi-natural forest can provide references for urban biodiversity conservation and zone vegetation restoration. This study investigates and analyzes the species composition characteristics of the regeneration seedlings used for semi-natural forest in a fixed monitoring plot(1 ha) located in Shanghai Chenshan. The results show that there are 5937 regeneration seedlings in the plot, belonging to 37 species, 32 genera and 22 families, among which the native tree species present 57.89%, significantly higher than that in urban plantations. The seedling of Cinnamomum camphora, C. japonicum, Broussonetia papyifera, Celtis sinensis and Ligustrum sinense in total accounts for 57.2%, which showed the obvious aggregation distribution pattern. The richness of regeneration seedlings of different species is generally high in the 11 communities and the seedlings of different species have the different survival and growth potential.
作者
安齐
魏进华
张庆费
王妍亭
An Qi;Wei Jinhua;Zhang Qingfei;Wang Yanting(College of Forestry,Beihua University,Jilin 132013,China;Shanghai Chenshan Botanical Garden,Shanghai 201602,China)
出处
《中国城市林业》
2020年第2期15-19,共5页
Journal of Chinese Urban Forestry
基金
上海市绿化和市容管理局辰山专项“基于大样地的上海城市森林生物多样性监测研究”(G142418)。
关键词
林下更新
更新苗组成
物种多样性
半自然群落
固定样地
understory regeneration
seedling composition
species diversity
semi-natural forest
fixed plot
