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北京市六环内城市森林结构总体特征
引用本文:马杰,贾宝全,张文,刘秀萍,李晓婷,刘佳.北京市六环内城市森林结构总体特征[J].生态学杂志,2019(8):2318-2325.
作者姓名:马杰  贾宝全  张文  刘秀萍  李晓婷  刘佳
作者单位:中国林业科学研究院林业研究所;国家林业和草原局林木培育重点实验室;国家林业和草原局城市森林研究中心;河南科技学院;华东交通大学;北京市园林科学研究院园林绿地生态功能评价与调控技术北京市重点实验室
基金项目:林业公益性行业科研专项经费项目(201404301);北京市自然科学基金项目(8152031)资助
摘    要:城市森林结构决定了城市森林的外貌、总体绿量,影响其生态效益.本文对北京市六环外1 km范围内城市森林分层抽样调查,研究其多样性及乔木规格,并根据北京城市特点分析其空间差异,以期找出存在问题及梯度变化规律,为北京城市森林多样性保护及科学管理提供依据.通过对各类城市森林847个标准样方的调查,共记录木本植物50科、106属、159种,本地种占75%;城市森林植物群落仍然是少数物种主导,毛白杨(Populus tomentosa Carr.)与国槐(Sophora japonicaL.)分别为使用数量最多(9.7%)和使用频度最高(28.45%)的树种;乔木平均胸径19.79 cm,平均冠幅5.4 m,规格总体偏小,且规格差异不大.北京市城市森林沿城市发展方向由城内向城外展现出了明显的梯度变化:总物种数4环外多于4环内,最高为4~5环112种;多样性指数逐渐降低;乔木规格减小;“城六区”物种组成、多样性及乔木规格均优于其他行政区.

关 键 词:北京  城市森林  物种多样性  规格  空间梯度

The characteristics of urban forest structure within the Sixth Ring Road of Beijing
MA jie,JIA Bao-quan,ZHANG Wen,LIU Xiu-ping,LI Xiao-ting,LIU jia.The characteristics of urban forest structure within the Sixth Ring Road of Beijing[J].Chinese Journal of Ecology,2019(8):2318-2325.
Authors:MA jie  JIA Bao-quan  ZHANG Wen  LIU Xiu-ping  LI Xiao-ting  LIU jia
Institution:(Research Institute of Forestry, Chinese Academy of Forestry, Beijing 100091, China;Key Laboratory of Tree Breeding and Cultivation, State Forestry and Grassland Administration, Beijing 100091, China;Research Centre of Urban Forestry, State Forestry and Grassland Administration, Beijing 100091, China;Henan Institute of Science and Technology, Xinxiang 453003, Henan, China;East China Jiaotong University, Nanchang 330013, China;Beijing Institute of Landscape Architecture, Beijing Key Laboratory of Ecological Function Assessment and Regulation Technology of Green Space, Beijing 100102, China)
Abstract:MA jie;JIA Bao-quan;ZHANG Wen;LIU Xiu-ping;LI Xiao-ting;LIU jia(Research Institute of Forestry, Chinese Academy of Forestry, Beijing 100091, China;Key Laboratory of Tree Breeding and Cultivation, State Forestry and Grassland Administration, Beijing 100091, China;Research Centre of Urban Forestry, State Forestry and Grassland Administration, Beijing 100091, China;Henan Institute of Science and Technology, Xinxiang 453003, Henan, China;East China Jiaotong University, Nanchang 330013, China;Beijing Institute of Landscape Architecture, Beijing Key Laboratory of Ecological Function Assessment and Regulation Technology of Green Space, Beijing 100102, China)
Keywords:Beijing  urban forest  species diversity  specification  spatial gradient
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