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地形对阔叶红松林幼苗更新的影响
引用本文:赵雪,刘妍妍,金光泽.地形对阔叶红松林幼苗更新的影响[J].生态学杂志,2013,24(11):3035-3042.
作者姓名:赵雪  刘妍妍  金光泽
作者单位:(东北林业大学生态研究中心, 哈尔滨 150040)
摘    要:依托黑龙江凉水国家级自然保护区9 hm2典型阔叶红松林动态监测样地的900个2 m×2 m多年生幼苗(H≥30 cm,DBH<1 cm)样方,基于2006、2008和2010年3次调查数据,分析了地形对幼苗建立的影响.结果表明: 样地内共有乔木幼苗26种,2006、2008和2010年的乔木幼苗总数分别为4514、6464和5611株·hm-2.其中个体数前10位树种的幼苗数量占幼苗总数的90%以上.地形对8个主要乔木幼苗的分布有显著的影响,其中暴马丁香、冷杉、色木槭、春榆、花楷槭、紫椴和青楷槭幼苗与其成树分布基本一致,而红松幼苗的空间分布与成树分布有所不同.暴马丁香、冷杉、裂叶榆、青楷槭和紫椴幼苗的死亡与地形显著相关.暴马丁香、春榆、红松、冷杉、水曲柳、色木槭和紫椴新增幼苗与地形显著相关.


关 键 词:阔叶红松林  幼苗组成  地形  死亡  新增

Effects of topography on seedling regeneration in a mixed broadleaved-Korean pine forest in Xiaoxing’an Mountains,Northeast China.
ZHAO Xue,LIU Yan-yan,JIN Guang-ze.Effects of topography on seedling regeneration in a mixed broadleaved-Korean pine forest in Xiaoxing’an Mountains,Northeast China.[J].Chinese Journal of Ecology,2013,24(11):3035-3042.
Authors:ZHAO Xue  LIU Yan-yan  JIN Guang-ze
Institution:(Center for Ecological Research, Northeast Forestry University, Harbin 150040, China)
Abstract:To explore the responses of forest seedlings to topographic heterogeneity, nine hundreds of 4 m2(2 m×2 m) quadrats with perennial seedlings (H≥30 cm, DBH<1 cm) were installed in a 9 hm2 plot in a typical mixed broadleaved-Korean pine forest in Xiaoxing’an Mountains. Based on the investigation data in 2006, 2008, and 2010, the effects of topography on the seedling establishment were studied. There were a total of 26 tree species in these quadrats. In 2006, 2008, and 2010, the total number of the tree seedlings was 4514, 6464, and 5611 individuals·hm-2, respectively, among which, the seedlings of the top 10 species occupied >90% of the total. Topography had significant effects on the seedling distribution of the 8 major tree species. For Syringa reticulate var. mandshurica, Abies nephrolepis, Acer mono, Ulmus japonica, A. ukurunduense, Tilia amurensis, and A. tegmentosum, the spatial distribution of the seedlings was consistent with that of grown trees; but for Pinus koraiensis, the spatial distribution of seedlings was inconsistent with that of the grown trees. The mortality of S. reticulate var. mandshurica, A. nephrolepis, U. laciniata, A. tegmentosum, and T. amurensis seedlings was significantly correlated with the topography. The recruitment of S. reticulate var. mandshurica, U. japonica, P. koraiensis, A. nephrolepis, Fraxinus mandshurica, A. mono, and T. amurensis seedlings was also significantly correlated with the topography.
Keywords:mixed broadleaved-Korean pine forest  seedling composition  topography  mortality  recruitment  
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