| 大兴安岭东麓火烧迹地恢复初期植被特征 |
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| 引用本文： | 李威,周梅,赵鹏武,田金龙,王梓璇,赵威,高岩.大兴安岭东麓火烧迹地恢复初期植被特征[J].东北林业大学学报,2020(1):51-55. |
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| 作者姓名： | 李威 周梅 赵鹏武 田金龙 王梓璇 赵威 高岩 |
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| 作者单位： | 内蒙古农业大学;内蒙古赛罕乌拉森林生态系统国家定位研究站（内蒙古农业大学）;内蒙古农业大学;内蒙古毕拉河国家级自然保护区 |
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| 基金项目： | 国家自然科学基金项目(41563006,C160903) |
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| 摘 要： | 为研究大兴安岭东麓地区火烧迹地恢复初期植被特征,以2017年毕拉河"5.2"特大森林火灾的火烧迹地为研究区域。于2018年7月对研究区展开调查,按照不同火烧程度将火烧迹地划分为3类样地,分别为轻度火烧迹地(乔木死亡率≤30%)、中度火烧迹地(30%<乔木死亡率≤70%)及重度火烧迹地(乔木死亡率>70%),运用多样性指数和改进的M-Godron法,分析不同程度火烧迹地内物种组成、植被多样性及群落稳定性。结果表明:不同程度林火干扰下群落物种组成存在显著差异,多样性指数表现出中度火烧迹地最高、重度火烧迹地居中、轻度火烧迹地最低的格局;随着林火干扰程度加重,火烧迹地内植物群落稳定性越低。
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| 关 键 词： | 大兴安岭 林火干扰 火烧迹地 植被多样性 |
Vegetation Characteristics in the Early Stage of Restoration of Burned Area in Eastern Daxing’an Mountains |
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| Li Wei,Zhou Mei,Zhao Pengwu,Tian Jinlong,Wang Zixuan,Zhao Wei,Gao Yan.Vegetation Characteristics in the Early Stage of Restoration of Burned Area in Eastern Daxing’an Mountains[J].Journal of Northeast Forestry University,2020(1):51-55. |
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| Authors: | Li Wei Zhou Mei Zhao Pengwu Tian Jinlong Wang Zixuan Zhao Wei Gao Yan |
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| Institution: | (Inner Mongolia Agricultural University,Hohhot 010018,P.R.China;Inner Mongolia Saihanwula Forest Ecosystem National Research Station,Inner Mongolia Agricultural University;Inner Mongolia Agricultural University;Inner Mongolia Bilahe National Reserve) |
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| Abstract: | In order to study the characteristics of initial vegetation restoration in the burned area in the eastern Daxing’an Mountains, with the fire trails of the 2017 Bilahe "5.2" mega forest fire as the study area, we divided the burned area into three categories based on different fire intensity in July 2018 to investigate the study area, mild burned site(tree mortality ≤30%), medium burned site(30%70%), using diversity index and improved M-Godron method to analyze different degree burns within the species composition, vegetation diversity and community stability. There were significant differences in community species composition under different degrees of forest fire disturbance, and the diversity index showed the pattern of the highest moderate burned site, the middle severe burned site and the lowest light burned site. With the increase of disturbance degree of forest fire, the stability of plant community in the burned site is lower. |
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| Keywords: | Daxing’an Mountains Forest fire disturbance Burned area Vegetation diversity |
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