广西植物2017，Vol.37Issue(6)：799-805,7.DOI:10.11931/guihaia.gxzw201609030
浙江丽水白云山红豆树人工林的径级结构和空间分布格局
Size class structure and spatial distribution pattern of Ormosia hosiei plantation in Baiyun Mountain, Lishui
摘要
Abstract
We set up two 20 m × 40 m plots (Plot 1 and Plot 2) using forest dynamics plot investigation protocol in Ormosia hosiei plantations of Baiyuan Mountain,and conducted a community survey in these two plots.The results were as follows: (1) Thirteen tree and shrub species were recorded,of which the dominant species were Ormosia hosiei,Michelia maudiae and Machilus pauhoi.Stem size class structures of both plots were reverse "J" shaped.(2) Stems of Ormosia hosiei in both plots were spatially randomly distributed.At the small spatial scales,O.hosiei and other species were negatively correlated in both plots,especially in Plot 1.(3) Analysis of soil effects on the DBH growth of O.hosiei only showed a significant effect of soil layer thickness,but not significant effects of total phosphorous content,total nitrogen content,soil pH and litter.The results suggest: ① The Ormosia hosiei plantations were with large growth potentials.② The intraspecific competition between O.hosiei stems may be weak,while the interspecific competition between O.hosiei and other species may be strong.③ For the management of these O.hosiei plantations,it might be appropriate to remove some branches of large stems to facilitate the growth of small stems,and to enhance the management of soil layer thickness.Through the study on size class structure and spatial distribution pattern of 40 years mature O.hosiei plantation,we can better understand the update process and structure characteristics,and it provides more scientific basis for artificial afforestation,plantation large size materials and ational management.关键词
红豆树/群落结构/径级结构/格局分析/空间分布格局Key words
Ormosia hosiei/community structure/size class structure/pattern analysis/patial distribution pattern分类
农业科技引用本文复制引用
尤根彪,叶和军,焦洁洁,林莉军,刘伟,吴初平..浙江丽水白云山红豆树人工林的径级结构和空间分布格局[J].广西植物,2017,37(6):799-805,7.基金项目
全国森林经营基础研究项目(169201531-5) （169201531-5）
浙江省省院重点合作项目(2016SY08)[Supported by National Fundamental Research Program of Forest Management(169201531-5) （2016SY08）
Key Cooperation Program of Zhejiang Province and Chinese Academy of Forestry(2016SY08)]. （2016SY08）
