全球变化因子数量对菌根植物性状的影响

doi:10.17521/cjpe.2025.0226

植物生态学报 ›› 2026, Vol. 50 ›› Issue (4): 907-916.DOI: 10.17521/cjpe.2025.0226 cstr: 32100.14.cjpe.2025.0226

全球变化因子数量对菌根植物性状的影响

段建林¹, 孟晟¹, 陈仁利², 熊林峰¹, 卢春洋¹, 席念勋³^,^*()()

¹ 海南大学热带农林学院, 海口 570228
² 中国林业科学研究院热带林业研究所, 广州 510520,
³ 海南大学生态学院, 国家生态质量综合监测站海南热带雨林站(森林), 海口 570228

收稿日期:2025-06-16 接受日期:2026-01-08 出版日期:2026-04-20 发布日期:2026-06-29
通讯作者: ^*席念勋(nianxunxi@hainanu.edu.cn)
基金资助:
海南省自然科学基金(425MS035)

Impact of multiple global change factors on traits of mycorrhizal plants

DUAN Jian-Lin¹, MENG Sheng¹, CHEN Ren-Li², XIONG Lin-Feng¹, LU Chun-Yang¹, XI Nian-Xun³^,^*()()

¹ School of Tropical Agriculture and Forestry, Hainan University, Haikou 570228, China
² Research Institute of Tropical Forestry, Chinese Academy of Forestry, Guangzhou 510520, China
³ National Ecological Quality Comprehensive Monitoring Station: Hainan Tropical Rainforest Station (Forest), School of Ecology, Hainan University, Haikou 570228, China

Received:2025-06-16 Accepted:2026-01-08 Online:2026-04-20 Published:2026-06-29
Contact: ^*XI Nian-Xun(nianxunxi@hainanu.edu.cn)
Supported by:
Hainan Provincial Natural Science Foundation of China(425MS035)

摘要/Abstract

摘要： 随着人类活动的不断增加, 影响全球生态系统的环境因子的强度逐渐增强, 且多个因子常常在同一生态系统中同时出现, 共同影响植物的表现。然而, 随着全球变化因子数量的增加, 对菌根植物关键功能性状的变化趋势仍知之甚少。为探讨多种全球变化因子共同作用对外生菌根和丛枝菌根植物功能性状的影响, 该研究采用盆栽控制实验的方法, 选择海南尖峰岭当地常见的6种菌根植物幼苗为对象, 探究不同数量的全球变化因子对两种类型菌根植物功能性状的影响。实验设定了对照处理(0个因子)和8个因子的4个组合处理: 1个因子、2个因子、4个因子和8个因子组合的不同处理。经过一年处理后, 测量植物的光合速率、叶片和根系的性状指标, 以评估全球变化因子数目对植物功能性状的影响。结果显示, 随着全球变化因子数量的增加, 植物光合、地上和地下性状表现出线性、非线性变化或没有显著变化。两类菌根植物的比叶面积、叶片氮含量及叶片磷含量对全球变化因子数量的响应模式显著不同。但进一步分析表明, 性状响应的差异主要源于物种差异, 而非菌根类型不同。植物功能性状与全球变化因子数目的关系中, 线性关系可能反映了多因子作用的加性效应, 而非线性关系则可能由因子间的非加性相互作用(协同或拮抗)所引起。这些结果揭示了全球变化因子对植物功能性状的复杂影响, 以及不同物种对这些环境压力的独特响应, 为理解植物在全球变化背景下的性状响应规律提供了实验依据, 同时也为应对全球变化的加剧提供了有益的研究思路。

关键词: 全球变化因子, 植物功能性状, 外生菌根植物, 丛枝菌根植物, 海南

Abstract:

Aims As human activities continue to intensify, the strength of environmental factors affecting global ecosystems has gradually increased, and multiple factors often change simultaneously within a single ecosystem, collectively influencing plant performance. However, with the increasing number of global change factors, the trend of changes in key functional traits of mycorrhizal plants remains poorly understood. This study aimed to investigate the combined effects of multiple global change factors on the functional traits of ectomycorrhizal and arbuscular mycorrhizal plants.

Methods This study employed a pot-controlled experimental approach, using seedlings of six locally common mycorrhizal plant species as subjects to investigate the effects of varying numbers of global change factors on the functional traits of two types of mycorrhizal plants. The experiment included a control treatment (0 factor) and four treatments consisting of combinations of 1, 2, 4, and 8 factors. After one year of treatment, measurements were taken of plant photosynthetic rate, as well as leaf and root trait indicators, to evaluate the impact of the number of global change factors on plant functional traits.

Important findings The results showed that, with increasing numbers of global change factors, photosynthetic, aboveground, and belowground functional traits exhibit linear or nonlinear changes depending on mycorrhizal types and plant species. The linear relationship between plant functional traits and the number of global change factors may reflect additive effects of multi-factor interactions, while nonlinear relationships likely result from non-additive interactions (synergistic or antagonistic effects) among the factors. These findings highlight the complex influence of global change factors on plant functional traits, as well as the unique responses of different species to environmental pressures. The results provide valuable experimental insights into the response patterns of plant traits under increasing numbers of global change factors, offering a basis for understanding and mitigating the impacts of intensified global change.

Key words: global change factor, plant functional trait, ecto-mycorrhizal plant, arbuscular mycorrhizal plant, Hainan

段建林, 孟晟, 陈仁利, 熊林峰, 卢春洋, 席念勋. 全球变化因子数量对菌根植物性状的影响. 植物生态学报, 2026, 50(4): 907-916. DOI: 10.17521/cjpe.2025.0226

DUAN Jian-Lin, MENG Sheng, CHEN Ren-Li, XIONG Lin-Feng, LU Chun-Yang, XI Nian-Xun. Impact of multiple global change factors on traits of mycorrhizal plants. Chinese Journal of Plant Ecology, 2026, 50(4): 907-916. DOI: 10.17521/cjpe.2025.0226

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链接本文: https://www.plant-ecology.com/CN/10.17521/cjpe.2025.0226

https://www.plant-ecology.com/CN/Y2026/V50/I4/907

图/表 4

表1 全球变化因子与物种对植物功能性状影响的混合效应模型结果

Table 1 Results of mixed effects models for effects of global change factor (GCF) number and species identity on plant functional traits

植物性状 Plant trait		因子数目 GCF number	物种 Species	因子数目×物种 GCF number × species
	df	4	5	20
净光合速率 Net photosynthetic rate	F	1.451	26.999	2.230
净光合速率 Net photosynthetic rate	p	0.219	<0.001	0.003
蒸腾速率 Transpiration rate	F	2.563	28.548	2.196
蒸腾速率 Transpiration rate	p	0.300	<0.001	0.004
气孔导度 Stomatal conductance	F	2.022	37.362	2.051
气孔导度 Stomatal conductance	p	0.357	<0.001	0.007
叶干物质含量 Leaf dry matter content	F	0.424	48.665	1.007
叶干物质含量 Leaf dry matter content	p	0.788	<0.001	0.452
比叶面积 Specific leaf area	F	0.592	55.726	2.075
比叶面积 Specific leaf area	p	0.672	<0.001	0.004
比根长 Specific root length	F	0.245	70.909	1.854
比根长 Specific root length	p	0.909	<0.001	0.014
细根直径 Fine root diameter	F	0.299	142.703	0.849
细根直径 Fine root diameter	p	0.879	<0.001	0.653
根组织密度 Root tissue density	F	0.241	17.394	1.862
根组织密度 Root tissue density	p	0.912	<0.001	0.014
叶片氮含量 Leaf nitrogen content	F	1.719	75.591	2.113
叶片氮含量 Leaf nitrogen content	p	0.358	<0.001	0.004
叶片磷含量 Leaf phosphorus content	F	6.345	31.508	7.609
叶片磷含量 Leaf phosphorus content	p	0.002	<0.001	<0.001

图1 海南6种丛枝菌根(AM)和外生菌根(ECM)植物光合性状与全球变化因子数目的关系(平均值±标准差)。图中实线表示关系显著(p < 0.05)。

Fig. 1 Relationships between photosynthetic traits and the number of global change factors of six arbuscular mycorrhizal (AM) and ectomycorrhizal (ECM) plant species in Hainan (mean ± SD). Solid lines indicate significant regressions (p < 0.05). A, E, and gsw indicate net photosynthetic rate, transpiration rate, and stomatal conductance, respectively.

图2 海南6种丛枝菌根(AM)和外生菌根(ECM)植物地上性状与全球变化因子数目的关系(平均值±标准差)。图中实线表示关系显著(p < 0.05)。

Fig. 2 Relationships between aboveground traits and the number of global change factors of six arbuscular mycorrhizal (AM) and ectomycorrhizal (ECM) plant species in Hainan (mean ± SD). Solid lines indicate significant regressions (p < 0.05).

图3 海南6种丛枝菌根(AM)和外生菌根(ECM)植物地下性状与全球变化因子数目的关系(平均值±标准差)。图中实线表示关系显著(p < 0.05)。

Fig. 3 Relationships between belowground traits and the number of global change factors of six arbuscular mycorrhizal (AM) and ectomycorrhizal (ECM) plant species in Hainan (mean ± SD). Solid lines indicate significant regressions (p < 0.05).

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全球变化因子数量对菌根植物性状的影响

Impact of multiple global change factors on traits of mycorrhizal plants

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