华东师范大学学报(自然科学版)Issue(6):12-22,11.
城市化进程中上海植被的多样性、空间格局和动态响应(V):管护放弃后城市水杉林林下植被自然演替格局的研究
Diversity,spatial pattern and dynamics of vegetation under urbanization in Shanghai(V):Natural succession pattern of understory vegetation in Metasequoia glyptostrobodies plantations without management in urban areas
摘要
Abstract
The dynamics of species composition and diversity, population structure and height growth rate of understory vegetation in the Metasequoia glyptostrobodies plantations abandoned for 5, 8 and 12 years in the campus of East China Normal University has been studied in this paper. The results indicated as follows. (1) The species diversity decreased after abandoned. (2) Understory vegetation mainly distributed on the layer of 0 - 1.5 m and 1.5 - 3.0, in which the main species is Trachycarpus fortunei due to rich seeds sources. (3) The population structure pattern shifted from sporadic type to unimodal type, and its restoration has been changing into deflected succession. And (4) Trachycarpus fortunei and Ligustrum quihoui with the character of shade-tolerant have fast height-growth rate. It is suggested that the habitat,the seed resources and the seed dispersal pattern were the key limitation of understory vegetation restoration.关键词
林下植被/自然恢复/偏途演替/限制因素Key words
understory vegetation/ natural restoration/ deflected succession/ limitation factors分类
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王娟,达良俊,李艳艳,商侃侃..城市化进程中上海植被的多样性、空间格局和动态响应(V):管护放弃后城市水杉林林下植被自然演替格局的研究[J].华东师范大学学报(自然科学版),2009,(6):12-22,11.基金项目
国家自然科学基金(30370255) (30370255)
高等学校博士学科点专项科研基金(20050269015) (20050269015)
日本文部科学省(东京信息大学)学术前沿合作项目(2005-2008) (东京信息大学)