生态学报2018，Vol.38Issue(10)：3562-3568,7.DOI:10.5846/stxb201704120641
钱江源国家公园古田山常绿阔叶林木本植物的萌生更新特征
Sprouting characteristics of woody species in a subtropical evergreen broad-leaved forest in Gutianshan of Qianjiangyuan National Park, East China
摘要
Abstract
Sprouting,an effective means of regeneration in woody plants,gives the forest community a great resilience.However,most previous studies focused on seedling regeneration,so the importance of sprouting regeneration in forests are still not well understood.Using a 5 hm2 plot of subtropical evergreen broad-leaved forest in Gutianshan National Nature Reserve of Qianjiangyuan National Park,we quantitatively analyzed the characteristics of sprouting in woody plants,and the variations of the sprouting abilities of different taxa and different functional groups.Results showed that:(1) 64％ of species and 20％ of individuals had sprouted,and sprouted stems accounted for 24％ of the total individuals in the plot.(2) There were significant differences in sprouting ability both on the species level and on the family level (F=13.11,P＜ 0.001;F=27.45,P＜0.001).More precisely,the species Corylopsis glandulifera,Chimonanthus salicifolius,Viburnum erosum,Eurya rubiginosa var.attenuata,and Pieris formosa,and those in Calycanthaceae,Caprifoliaceae,Magnoliaceae,and Fagaceae had high sprouting abilities.(3) There were significant differences among different vertical structure layers in sprouting ability (F=117.5,P＜0.001),and the sprouting abilities of species in the shrub layer were about twice those in the canopy layer and sub-canopy layer.Significant differences in sprouting ability were also detected between different life forms (evergreen vs.deciduous),where the sprouting ability in evergreen groups was higher than that in deciduous groups (P＜0.001).Sprouting regeneration plays an important role in subtropical evergreen broad-leaved forest and may be one of the mechanisms related to species diversity maintenance and community succession.Shrub species and evergreen species have strong sprouting ability,implying that sprouting may be a plant strategy for shade tolerance.关键词
萌生/更新/功能群/常绿阔叶林/古田山/钱江源国家公园Key words
sprouting/regeneration/functional groups/evergreen broad-leaved forest/Gutianshan/Qianjiangyuan National Park引用本文复制引用
叶铎,钱海源,王璐瑶,金芳梅,倪健,陈声文,宋云峰,陈建华..钱江源国家公园古田山常绿阔叶林木本植物的萌生更新特征[J].生态学报,2018,38(10):3562-3568,7.基金项目
浙江省自然科学基金项目(LY17C030001) （LY17C030001）
国家自然科学基金面上项目(41471049) （41471049）
