长白山区典型植被类型物种多样性空间分布的尺度效应

生态学杂志

长白山区典型植被类型物种多样性空间分布的尺度效应

曹琳琳^1,2,3,苏宝玲¹,周旺明^2,3,于大炮^2,3,吴健^2,3,毕建华^1,2,3,黄利亚⁴,代力民^2,3*

(¹沈阳大学，生命科学与工程学院，沈阳 110044； ^2中国科学院森林生态与管理重点实验室，沈阳 110161； ^3中国科学院沈阳应用生态研究所，沈阳 110016； ⁴长白山科学研究院，吉林二道白河 133613）

出版日期:2017-11-10 发布日期:2017-11-10

Scale-dependent spatial variation of species diversity in typical vegetation types in Changbai Mountain, China.

CAO Lin-lin^1,2,3, SU Bao-ling¹, ZHOU Wang-ming^2,3, YU Da-pao^2,3, WU Jian^2,3, BI Jian-hua^1,2,3, HUANG Li-ya⁴, DAI Li-min^2,3*#br#

(¹College of Life Science and Bioengineering, Shenyang University, Shenyang 110044, China; ^2Key Laboratory of Forest Ecology and Management, Chinese Academy of Sciences, Shenyang 110161, China; ³Institute of Applied Ecology, Chinese Academy of Sciences, Shenyang 110016, China; ^4Changbai Mountain Academy of Sciences, Erdaobaihe 133613, Jilin, China).

Online:2017-11-10 Published:2017-11-10

摘要/Abstract

摘要： 物种多样性指数的空间分布格局及其尺度效应对揭示生物多样性形成与维持机制具有重要意义。以长白山原始阔叶红松林（broad-leaved Korean pine forest, BKPF）、采伐后天然恢复的次生白桦林（birch forest, BF）以及人工补植的次生落叶松林（larch forest, LF）为研究对象，利用方差和变异系数探讨长白山区典型植被物种多度和丰富度的空间尺度效应。结果表明：1）BKPF和LF物种多度的方差随着尺度增加呈线性增加，变异系数呈线性下降。丰富度的方差随尺度的增加表现出单峰特征，且在20 m×20 m尺度上达到最大值，说明物种多度和丰富度存在空间变异，并且多度具有尺度推演规律，而丰富度没有；2）BF物种多度的方差和变异系数与BKPF具有相同的变化趋势，而物种丰富度的方差随着尺度增加而增加，未出现单峰现象，这是由于BF主要树种聚集程度显著增加；3）3个林型物种多度与丰富度在小尺度上具有显著相关性，随着尺度增加不再显著。本研究揭示了长白山区典型植被类型物种多样性随尺度变化的特征及其原因，为阔叶红松林植被恢复和管理提供数据支撑。

关键词: 地理分布, 豆梨, 最大熵模型, 气候变化

Abstract: Spatial distribution pattern and scale-dependent spatial variation of species diversity index are of great importance to reveal formation and maintenance mechanism of species diversity. We selected the broadleaved Korean pine forest (BKPF), natural secondary birch forest (BF) and artificial larch forest (LF) after logging in Changbai Mountain as the research objects and used variance and coefficient of variation to explore the scale-dependent spatial variation of species abundance and richness in Changbai Mountain. The results showed that: (1) the variance of species abundance increased linearly with spatial scale, while the coefficient of variance decreased with spatial scale in BKPF and LF. The variance of species richness showed a unimodal variation, reaching the maximum at the 20 m×20 m scale in BKPF and LF. It is indicated that large-scale species abundance can be estimated from smaller scales, whereas richness cannot be estimated. (2) The variance and coefficient of variance of species abundance in BF were consistent with those in BKPF, while the variation of species richness increased as the scale increased and never showed a unimodal variation. It was due to the significant increase in the aggregation degree of major tree species in BF. (3) The species abundance and richness had significant correlation each other on the small scale for all the three plots, but the correlation was no longer significant as the scale increased. Our results revealed the scale-dependent spatial variation and its reasons of species diversity of typical vegetation types in Changbai Mountain, providing data support for restoration and management of the broad-leaved Korean pine forest.

Key words: climate change, geographic distribution, Pyrus calleryana, MaxEnt

曹琳琳1,2,3,苏宝玲1,周旺明2,3,于大炮2,3,吴健2,3,毕建华1,2,3,黄利亚4,代力民2,3*. 长白山区典型植被类型物种多样性空间分布的尺度效应[J]. 生态学杂志.

CAO Lin-lin1,2,3, SU Bao-ling1, ZHOU Wang-ming2,3, YU Da-pao2,3, WU Jian2,3, BI Jian-hua1,2,3, HUANG Li-ya4, DAI Li-min2,3*. Scale-dependent spatial variation of species diversity in typical vegetation types in Changbai Mountain, China.[J]. cje.

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