择伐对紫椴次生林乔木幼苗分布格局及种间关联性的影响

doi:10.13287/j.1001-9332.202010.004

应用生态学报 ›› 2020, Vol. 31 ›› Issue (10): 3296-3304.doi: 10.13287/j.1001-9332.202010.004

择伐对紫椴次生林乔木幼苗分布格局及种间关联性的影响

刘月^1,2, 张德鹏¹, 及利^1,2, 许丽颖¹, 董灵波¹, 杨立学^1*

¹东北林业大学林学院, 森林生态系统可持续经营教育部重点实验室, 哈尔滨 150040;
²吉林省林业科学研究院, 长春 130033

收稿日期:2020-03-19 接受日期:2020-07-13 出版日期:2020-10-15 发布日期:2021-04-15
通讯作者: * E-mail: ylx_0813@163.com
作者简介:刘月, 女, 1994年生, 硕士研究生。主要从事森林经营及培育研究。E-mail: 837370311@qq.com
基金资助:
国家重点研发计划项目(2017YFD0600606)、中央高校基本科研业务费专项资金项目(2572019CP16)和黑龙江头雁创新团队计划项目(森林资源高效培育技术研发团队)资助

Effects of selective cutting on the distribution pattern and inter-specific association of arbor seedlings in Tilia amurensis secondary forest

LIU Yue^1,2, ZHANG De-peng¹, JI Li^1,2, XU Li-ying¹, DONG Ling-bo¹, YANG Li-xue^1*

¹Ministry of Education Key Laboratory of Sustainable Forest Ecosystem Management, School of Forestry, Northeast Forestry University, Harbin 150040, China;
²Jilin Academy of Forestry, Changchun 130033, China

Received:2020-03-19 Accepted:2020-07-13 Online:2020-10-15 Published:2021-04-15
Contact: * E-mail: ylx_0813@163.com
Supported by:
National Key R&D Program (2017YFD0600606), the Fundamental Research Funds for the Central Universities (2572019CP16), and the Heilongjiang Touyan Innovation Team Program (Technology Development Team for High-efficient Silviculture of Forest Resources).

摘要/Abstract

摘要： 研究张广才岭林区未经人为干扰的(自然恢复次生林)和择伐后20年(择伐经营次生林)的2种紫椴次生林林分的乔木树种幼苗的分布格局及其种间关联性。结果表明: 阳性软阔叶和阴性树种幼苗在自然恢复次生林中重要值分别为7.9和64.5,在择伐经营次生林中为3.9和68.9;自然恢复次生林和择伐经营次生林中乔木树种幼苗的空间分布点格局分别在0～18 m和0～15 m尺度内呈聚集分布。自然恢复次生林中,14～45 m尺度上树种对多呈负相关;而择伐经营次生林中,所有尺度上的树种对多呈无相关性。在择伐经营次生林中,更新层中有57%的紫椴幼苗与其他乔木幼苗的树种对在大尺度上(31～45 m)呈负相关,在自然恢复次生林中该比例大于60%。在择伐经营次生林中,色木槭幼苗与其他乔木幼苗的树种对在更多尺度上(6～45 m)主要呈负相关,自然恢复次生林中的色木槭幼苗与其他乔木幼苗的树种对多在小尺度上(0～5 m)呈正相关,在大尺度上(31～45 m)无相关性。择伐加快了紫椴次生林未来的演替速度,一定程度上使得乔木树种幼苗在更大距离尺度上呈现出随机分布状态,并促使林分中乔木树种幼苗的种间关系更加协调,调整了紫椴种群幼苗种间的空间竞争关系。2个林分均处在演替进程中,在今后的林分管理中,应适当采取人工经营措施以促进林分更新及群落的恢复。

关键词: 紫椴次生林, 乔木幼苗, 空间格局, 空间关联

Abstract: The distribution pattern and interspecific associations of arbor seedlings were examined in two Tilia amurensis forest stands in Zhangguangcailing, with one without man-made interference (natural recovery secondary forest) and the other one being 20-year-old after selective cutting (selective cutting secondary forest). The results showed that the importance value of the seedlings of the soft broad-leaved (heliophile) and tolerant tree species was 7.9 and 64.5 in natural recovery secondary forest, and was 3.9 and 68.9 in selective cutting secondary forest, respectively. The spatial distribution pattern of arbor seedlings in natural recovery and selective cutting secondary forests showed clustered distribution at the scale of 0-18 m and 0-15 m, respectively. Most of tree species pairs were negatively correlated at large scale (14-45 m) in the natural recovery secondary forest, whereas tree species pairs at all the scales were mostly uncorrelated in the selective cutting secon-dary forest. Most of the tree pairs of T. amurensis seedlings (57%) with other tree species showed negatively correlation at large scale (31-45 m). In the natural recovery secondary forest, the proportion of negatively correlated tree pairs was higher than 60%. In selective cutting secondary forest, Acer mono seedlings were negatively correlated with other tree species at more scales (6-45 m). In the natural recovery secondary forest, the pairs of A. mono and other arbor seedlings were positively correlated at small scale (0-5 m), but not at large scale (31-45 m). Therefore, selective cutting accelerated the succession of the secondary forest of T. amurensis, which induced random distribution of the arbor seedlings at the large scale (31-45 m), promoted a more coordinated inter-specific relationship, and adjusted the spatial competition between T. amurensis seedlings. Both stands were under succession, and thus suitable artificial management should be carried out to promote tree regeneration and community restoration.

Key words: Tilia amurensis secondary forest, tree seedling, spatial pattern, spatial association

刘月, 张德鹏, 及利, 许丽颖, 董灵波, 杨立学. 择伐对紫椴次生林乔木幼苗分布格局及种间关联性的影响[J]. 应用生态学报, 2020, 31(10): 3296-3304.

LIU Yue, ZHANG De-peng, JI Li, XU Li-ying, DONG Ling-bo, YANG Li-xue. Effects of selective cutting on the distribution pattern and inter-specific association of arbor seedlings in Tilia amurensis secondary forest[J]. Chinese Journal of Applied Ecology, 2020, 31(10): 3296-3304.

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择伐对紫椴次生林乔木幼苗分布格局及种间关联性的影响

Effects of selective cutting on the distribution pattern and inter-specific association of arbor seedlings in Tilia amurensis secondary forest

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