南岭大东山火烧迹地长柄双花木种群特征

林业资源管理 ›› 2013, Vol. 0 ›› Issue (3): 88-93.

南岭大东山火烧迹地长柄双花木种群特征

缪绅裕¹, 陈志明², 李晓杰¹, 刘嘉俊¹, 王厚麟¹, 黄金玲³, 伍国仪², 李卫坚², 黄成辉²

1.广州大学生命科学学院,广州 510006;
2.广东南岭国家级自然保护区大东山管理处,广东连州 513400;
3.广州大学建筑与城市规划学院,广州 510006

收稿日期:2013-03-18 修回日期:2013-04-28 出版日期:2013-06-28 发布日期:2020-11-20
作者简介:缪绅裕(1965-),男,江西玉山人,教授,博士,主要从事植物多样性等研究。Email:miaoshy@gzhu.edu.cn
基金资助:
广东省自然科学基金资助项目(S2012010009714)

Characteristics of Recovery Population of Disanthus cercidifolius var.longipes at Burned Area in Dadongshan of Nanling Mountains

MIAO Shenyu¹, CHEN Zhiming², LI Xiaojie¹, LIU Jiajun¹, WANG Houlin¹, HUANG Jinling³, WU Guoyi², LI Weijian², HUANG Chenghui²

1. School of Life Sciences,Guangzhou University,Guangzhou 510006,China;
2. Dadongshan Station,Nanling National Nature Reserve of Guangdong,Lianzhou 513400,China;
3. School of Architecture and Urban Planning,Guangzhou University,Guangzhou 510006,China

Received:2013-03-18 Revised:2013-04-28 Online:2013-06-28 Published:2020-11-20

摘要/Abstract

摘要： 采用植被样方调查法,比较研究了南岭大东山同一海拔高度火烧迹地自然恢复植被和长柄双花木种群与相邻未过火林地植被和种群的生态学特征。结果表明,火烧迹地上,长柄双花木种群恢复迅速,但麻栎、枹栎更占优势;未过火林地植被的优势种则为长柄双花木、马尾松、黄山松等。Jaccard相似度0.194,Cody指数29.00,表明物种替代速率高。火烧迹地植被的郁闭度、物种丰富度、Simpson多样性指数、Shannon-Wiener指数和均匀度J_D,J_H均略低于未过火林地,显示在过火后3年多的早期阶段,群落结构不如未过火林地稳定。径级结构表明,长柄双花木火烧迹地种群与未过火林地种群均显示出增长趋势,但火烧迹地种群规模小;高度结构上两者差异大。研究结果提示,长柄双花木种群在火烧迹地自然恢复良好,但应加强管护,以保障该种群得以生存和发展。

关键词: 长柄双花木, 火烧迹地, 自然恢复种群, 径级结构, 高度结构, 南岭大东山

Abstract: The vegetation quardat method is used to compare the ecological characteristics of recovery community and Disanthus cercidifolius var.longipes population at burned area to those at the non-fired area growing nearby at the same altitude in Dadongshan,Nanling Mountains.The results showed that the Disanthus cercidifolius var.longipes population recovered rapidly at the burned area,but the Quercus acutissima and Q.serrata have more important values,while the dominant species are Disanthus cercidifolius var.longipes,Pinus massoniana,and P.taiwanensis in non-fired area community.The similarity of Jaccard is 0.194,and Cody index is 29.00 showing the relplace rate of species is relatively high.The vegetation coverage,richness,the species diversity index of Simpson and Shannon-Wiener,and evenness of J_D and J_H at burned area are all lower than that of non-fired area vegetation,indicating that during the three years of early stage after fire,the community structure is flexible than that of non-fired community.Based on the diameter size structures,both the populations of Disanthus cercidifolius var.longipes at burned area and non-burned area have the same increasing trend,but the burned area has a lower population size.The height structure for population at burned area is much different from that at the non-fired area population.The results suggest that the population of Disanthus cercidifolius var.longipes at burned area naturally recoved rapidly,and some measures should be taken to ensure the survival and enlargement of Disanthus cercidifolius var.longipes population.

Key words: Disanthus cercidifolius var.longipes, burned area, natural recovery population, size structure, height structure, Dadongshan of Nanling Mountains

中图分类号:

S718.5

缪绅裕, 陈志明, 李晓杰, 刘嘉俊, 王厚麟, 黄金玲, 伍国仪, 李卫坚, 黄成辉. 南岭大东山火烧迹地长柄双花木种群特征[J]. 林业资源管理, 2013, 0(3): 88-93.

MIAO Shenyu, CHEN Zhiming, LI Xiaojie, LIU Jiajun, WANG Houlin, HUANG Jinling, WU Guoyi, LI Weijian, HUANG Chenghui. Characteristics of Recovery Population of Disanthus cercidifolius var.longipes at Burned Area in Dadongshan of Nanling Mountains[J]. FOREST RESOURCES WANAGEMENT, 2013, 0(3): 88-93.

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