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林业资源管理 ›› 2012›› Issue (1): 48-53.

• 科学技术 • 上一篇    下一篇

重庆缙云山自然保护区马尾松阔叶树混交林的空间结构特征

赵洋毅1, 王克勤1, 陈奇伯1, 王玉杰2, 王云琦2, 段旭3   

  1. 1.西南林业大学 环境科学与工程学院水土保持与荒漠化防治重点学科,昆明 650224;
    2.北京林业大学 水土保持学院,北京 100083;
    3.西南林业大学 林学院,昆明 650224
  • 收稿日期:2011-11-23 修回日期:2011-12-07 出版日期:2012-02-28 发布日期:2020-11-27
  • 通讯作者: 王玉杰(1960-),教授,博士生导师,主要从事土壤侵蚀、林业生态工程研究。
  • 作者简介:赵洋毅(1980-),男,吉林长春人,讲师,博士,主要从事水土保持和生态恢复研究。Email:yyz301@foxmail.com
  • 基金资助:
    林业公益性行业科研专项(201104005-01,201104009-03);中央高校基本科研业务费专项(YX2011-26)

Spatial Structural Characteristics of Pinus massoniana and Broad-leaved Tree Mixed Forest in the Jinyunshan National Nature Reserve in Chongqing City

ZHAO Yangyi1, WANG Keqin1, CHEN Qibo1, WANG Yujie2, WANG Yunqi2, DUAN Xu3   

  1. 1. College of Environment Science and Engineering/ Key Subject of Soil and Water Conservation &Desertification Control,Southwest Forestry University,Kunming 650224;
    2. College of Soil and Water Conservation,Beijing Forestry University,Beijing 100083;
    3. College of Forestry,Southwest Forestry University,Kunming 650224,China
  • Received:2011-11-23 Revised:2011-12-07 Online:2012-02-28 Published:2020-11-27

摘要: 以缙云山自然保护区面积为0.36hm2样地的调查数据为基础,利用混交度、大小比数和角尺度3个空间结构参数,分析典型针阔混交林——马尾松阔叶树混交林的空间结构特征,结果表明:林分内乔木层共有11个种群,马尾松和阔叶树种的密度及断面积的优势均较明显,为典型的针阔混交林;林分平均混交度为0.817,单种聚集情况很少,林分混交程度高。林木的大小比数分布较均匀,林分稳定,个别伴生的阔叶树种四川杨桐、白毛新木姜子、细齿叶柃和虎皮楠表现为劣势,在林分中处于被压状态。林分的平均角尺度为0.485,空间分布格局为随机分布,且分布较均匀。

关键词: 马尾松阔叶树混交林, 空间结构, 空间结构参数, 缙云山

Abstract: Based on the survey data of a 0.36 hm2 plot in Jinyunshan National Nature Reserve,and by using the uniform angle index,neighborhood comparison and mingling degree,this paper analyzed the spatial structural characteristics of Pinus massoniana and Broad-leaved tree mixed forest in the Reserve.There were 11 populations in the tree layer of the forest,among which P.massoniana and Broad-leaved tree mixed forest had the obvious advantage in population density and basal area,being the typical coniferous forest.The average mingling degree of the forest was 0.817,single species was rarely gathered with mixed forest at a higher degree The neighborhood comparison distribution of the mixed forest was uniform with the stand being stable.Individual associated broad-leaved species,for example,Adinandra bockiana,Neolitea aurata,Euryanitida korthals and Daphniphyllum oldhami,was pressed in the stands.The average mingling degree was 0.485,the spatial pattern of the stand was of random distribution,and the distribution is uniform.

Key words: Pinus massoniana and Broad-leaved tree mixed forest, spatial structure, spatial structure parameter, Jinyun Mountains

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