Effects of topography on leaf functional traits across plant life forms in Xingdou Mountain, Hubei, China
Jin WANG1, Jiang ZHU,1,*, Xun-Ru AI1, Lan YAO1, Xiao HUANG1, Man-Ling WU1, Qiang ZHU1, Jian- Feng HONG21. School of Forestry and Horticulture, Hubei Minzu University, Enshi, Hubei 445000, China 2. Bureau of Xingdoushan National Nature Reserve, Enshi, Hubei 445000, China
Abstract Aims Exploring the effects of topography on leaf functional traits across plant life forms is helpful to understand species diversity maintenance in forests. The objective of this study is to test how leaf traits among trees, shrubs and woody lianas respond to topographic variability distinctly. Methods Five leaf functional traits (leaf area, leaf thickness, leaf dry mass, leaf dry matter content and specific leaf area) were measured for 224 woody plant species with contrasting life forms (trees, shrubs and woody lianas) across 50 plots of evergreen and deciduous broadleaved mixed forests in Xingdou Mountain, Hubei Province, China. The variation in leaf functional traits of trees, shrubs and woody lianas were analyzed by one-way ANOVA. We tested the significance of the effect of topographic variability on leaf functional traits of woody plants by Partial Mantel test at community level and species level, respectively. Important findings The coefficient of variation of leaf functional traits in different life forms ranged from 23.42% to 110.45%, and there were significant differences in leaf functional traits among different life forms. At the community level, there was a significant positive correlation between altitude and tree leaf dry mass, shrub leaf area and woody liana leaf thickness. Slope only had significant influences on shrub and woody liana leaf area, and slope aspect had significant effects on shrubs leaf thickness. There was a significant positive correlation between leaf dry mass and specific leaf area. At the species level, the effects of slope and slope aspect on plant leaf functional traits were more significant than those of altitude, and the sensitivity in the responses of functional traits to topographic variation was not consistent across different species. After controlling for the effects of spatial structure, the effects of topographic factors on functional traits of plant leaves were reduced. The results showed that the responses of leaf functional traits to topographic variation were different in different life forms, which might be one of the major mechanisms maintaining plant diversity in the evergreen and deciduous broadleaved mixed forests of Xingdou Mountain. Keywords:evergreen and deciduous broadleaved mixed forest;variation of traits;spatial structure;Partial Mantel test
PDF (1391KB)元数据多维度评价相关文章导出EndNote|Ris|Bibtex收藏本文 引用本文 王进, 朱江, 艾训儒, 姚兰, 黄小, 吴漫玲, 朱强, 洪建峰. 湖北星斗山地形变化对不同生活型植物叶功能性状的影响. 植物生态学报, 2019, 43(5): 447-457. DOI: 10.17521/cjpe.2018.0228 WANG Jin, ZHU Jiang, AI Xun-Ru, YAO Lan, HUANG Xiao, WU Man-Ling, ZHU Qiang, HONG Jian- Feng. Effects of topography on leaf functional traits across plant life forms in Xingdou Mountain, Hubei, China. Chinese Journal of Plant Ecology, 2019, 43(5): 447-457. DOI: 10.17521/cjpe.2018.0228
Fig. 1Basic topography status of 50 plots in Xingdou Moutain. The altitude and slope were presented as the actual observation data, and the aspects were sinusoidally transformed.
Fig. 2Species diversity of plants from different life forms in 50 plots of Xingdou Mountain. In the box, “□” is the average, “—” is the median. “○” is the abnormal value.
新窗口打开|下载原图ZIP|生成PPT 图3群落水平3种生活型植物叶功能性状变异。图中百分数据为变异系数(CV); 箱体中“█”为平均值、“—”为中位数; “○”为异常值。**, p < 0.01; *, p < 0.05; ns, p > 0.05。
Fig. 3Variation of leaf functional traits across three life forms of plants at community level. The figures on top of the boxed are the coefficients of variation (CV) of that trait across all plots. In the box, “█” is the average, “—” is the median. “○” is the abnormal value. LA, leaf area; LT, leaf thickness; LDM, leaf dry mass; LDMC, leaf dry matter content; SLA, specific leaf area. **, p < 0.01; *, p < 0.05; ns, p > 0.05.
Fig. 4Variation in leaf functional traits across dominant species (species level). LA, leaf area; LT, leaf thickness; LDM, leaf dry mass; LDMC, leaf dry matter content; SLA, specific leaf area. The figures on top of the boxes are the coefficients of variation of each trait for a species across all sampled plots. In the box, “█” is the average, “—” is the median. “○” is the abnormal value. 1-6 represent species in the abscissa: 1, Carpinus fargesiana; 2, Enkianthus serrulatus; 3, Eurya alata; 4, Stranvaesia davidiana; 5, Dalbergia dyeriana; 6, Actinidia chinensis.
Table 1 表1 表1群落水平上不同生活型植物叶功能性状与地形因子的偏曼特尔检验 Table 1Partial Mantel tests for the relationships between leaf functional traits of different life forms and topographic factors at community level
生活型 Life form
性状 Trait
空间结构 Spatial structure
未控制空间结构影响 Uncontrolled spatial structure effect
控制空间结构影响 Controlling the influence of spatial structure
海拔 Altitude
坡度 Slope
坡向 Slope aspect
海拔 Altitude
坡度 Slope
坡向 Slope aspect
乔木 Tree
LA (cm2)
0.26*
0.27*
0.07
0.15*
0.10
0.00
0.09
LT (mm)
-0.02
-0.02
-0.02
0.00
-0.01
-0.02
0.01
LDM (g)
0.15
0.20*
0.02
0.12
0.15*
-0.02
0.09
LDMC (g·g-1)
0.13*
0.08
-0.00
0.05
-0.09
-0.04
0.02
SLA (cm2·g-1)
0.06
0.07
0.01
0.09
0.04
-0.01
0.08
灌木 Shrub
LA (cm2)
0.18*
0.23**
0.05
0.13*
0.15*
-0.00
0.09
LT (mm)
0.39**
0.36**
0.02
0.19**
0.03
-0.09
0.11*
LDM (g)
0.32**
0.31**
0.19*
0.34**
0.07
0.12
0.29**
LDMC (g·g-1)
0.15
0.11
0.12
0.02
-0.04
0.08
-0.01
SLA (cm2·g-1)
0.30**
0.31**
0.23**
0.19**
0.10
0.16*
0.13*
木质藤本Woody liana
LA (cm2)
-0.02
-0.03
-0.07
0.01
-0.02
-0.07
0.02
LT (mm)
0.23
0.39*
0.21
0.11
0.40**
0.14
0.05
LDM (g)
-0.15
-0.16*
-0.04
-0.05
-0.05
0.01
-0.02
LDMC (g·g-1)
-0.07
-0.08
0.04
-0.09
-0.05
0.06
-0.07
SLA (cm2·g-1)
0.16
0.20
-0.06
0.02
0.12
-0.12*
-0.02
LA, leaf area; LT, leaf thickness; LDM, leaf dry mass; LDMC, leaf dry matter content; SLA, specific leaf area. The Partial Mantel coefficients and their significance were obtained by 999 times of randomization . **, p < 0.01; *, p < 0.05. LA, 叶面积; LT, 叶厚度; LDM, 叶干质量; LDMC, 叶干物质含量; SLA, 比叶面积。根据控制不同因子和叶功能性状之间进行999次置换得出Partial Mantel系数及其显著性。**, p < 0.01; *, p < 0.05。
Table 2 表2 表2物种水平上不同生活型植物叶功能性状与地形因子的偏曼特尔检验 Table 2Partial Mantel tests for the relationships between leaf functional traits of different life forms and topographic factors at species level across
物种 Species
性状 Trait
空间结构 Spatial structure
未控制空间结构影响 Uncontrolled spatial structure effect
控制空间结构影响 Controlling the influence of spatial structure
海拔 Altitude
坡度 Slope
坡向 Slope aspect
海拔 Altitude
坡度 Slope
坡向 Slope aspect
川陕鹅耳枥 Carpinus fargesiana
LA (cm2)
0.27*
0.34*
0.16
0.20
0.24*
0.07
0.12
LT (mm)
0.40**
0.43**
0.09
0.29**
0.15
-0.07
0.20*
LDM (g)
0.37**
0.38**
0.19*
0.16*
0.12
0.06
0.07
LDMC (g·g-1)
0.21*
0.12
-0.05
0.17*
-0.16
-0.14*
0.11
SLA (cm2·g-1)
0.35*
0.38*
0.21*
0.15
0.16
0.09
0.06
齿缘吊钟花 Enkianthus serrulatus
LA (cm2)
0.18*
0.17*
-0.01
-0.03
0.03
-0.02
-0.09
LT (mm)
-0.10
-0.10
0.04
-0.06
-0.03
0.04
-0.03
LDM (g)
0.29*
0.30*
0.03
0.05
0.11
0.02
-0.04
LDMC (g·g-1)
0.17
0.06
0.02
0.04
-0.17*
0.02
-0.01
SLA (cm2·g-1)
0.06
0.08
-0.01
-0.06
0.07
-0.01
-0.08
翅柃 Eurya alata
LA (cm2)
0.38**
0.40**
0.12
0.04
0.17*
0.02
-0.06
LT (mm)
0.02
0.05
-0.02
0.07
0.08
-0.03
0.07
LDM (g)
0.15*
0.18*
0.01
0.07
0.12
-0.03
0.04
LDMC (g·g-1)
0.22**
0.20*
-0.02
0.02
0.01
-0.08
-0.04
SLA (cm2·g-1)
0.11
0.07
0.02
0.20**
-0.07
-0.01
0.18**
红果树 Stranvaesia davidiana
LA (cm2)
0.15
0.24*
0.16*
0.03
0.21*
0.13
-0.02
LT (mm)
-0.03
-0.08
-0.05
0.05
-0.10
-0.04
0.07
LDM (g)
0.30*
0.37*
0.00
0.39**
0.23*
-0.08
0.32**
LDMC (g·g-1)
0.09
0.16
0.03
0.11
0.15
0.01
0.09
SLA (cm2·g-1)
0.29*
0.36*
0.02
0.32**
0.23*
-0.05
0.25**
大金刚藤 Dalbergia dyeriana
LA (cm2)
0.21
0.38**
-0.14
0.62**
0.33*
-0.14*
0.60*
LT (mm)
0.37*
0.07
-0.14
0.05
-0.13
-0.15
-0.12
LDM (g)
-0.05
0.00
-0.08
-0.13
0.03
-0.08
-0.12
LDMC (g·g-1)
0.27
-0.15
-0.05
-0.09
-0.32**
-0.05
-0.23*
SLA (cm2·g-1)
0.01
0.27*
0.01
0.12
0.29*
0.01
0.12
中华猕猴桃 Actinidia chinensis
LA (cm2)
0.43**
0.50**
0.06
-0.01
0.29*
-0.25**
-0.10
LT (mm)
-0.08
-0.08
-0.07
0.01
-0.02
-0.03
0.02
LDM (g)
0.21
0.11
0.07
-0.01
-0.17
-0.06
-0.05
LDMC (g·g-1)
-0.20*
-0.17*
-0.17**
-0.16
0.03
-0.07
-0.13
SLA (cm2·g-1)
0.12
0.28*
-0.12
0.11
0.40**
-0.23**
0.09
LA, leaf area; LT, leaf thickness; LDM, leaf dry mass; LDMC, leaf dry matter content; SLA, specific leaf area. The Partial Mantel coefficients and their significance were obtained by 999 times of randomization. **, p < 0.01; *, p < 0.05. LA, 叶面积; LT, 叶厚度; LDM, 叶干质量; LDMC, 叶干物质含量; SLA, 比叶面积。根据控制不同因子和叶功能性状之间进行999次置换得出Partial Mantel系数及其显著性。**, p < 0.01; *, p < 0.05。
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