Biodiv Sci ›› 2022, Vol. 30 ›› Issue (11): 22025. DOI: 10.17520/biods.2022025
• Original Papers:Plant Diversity • Previous Articles Next Articles
Moxu Wu1,2, Mingtai An1,2,*(), Li Tian1,2, Feng Liu1,2
Received:
2022-01-13
Accepted:
2022-06-23
Online:
2022-11-20
Published:
2022-09-29
Contact:
Mingtai An
Moxu Wu, Mingtai An, Li Tian, Feng Liu. Effects of environmental factors on quantitative characteristics of woody plant sexual system in Maolan karst forest[J]. Biodiv Sci, 2022, 30(11): 22025.
Fig. 3 Variation in plant individual number (a), species proportion of sexual systems (b), diversity of species (c) and sexual systems (d) in vertical plots in Maolan karst forest
Fig. 4 Variation in plant individual number (a), species proportion of sexual systems (b), diversity of species (c) and sexual systems (d) in horizontal plots in Maolan karst forest
Fig. 5 Violin plots of individual number and proportion of sexual systems in vertical and horizontal plots in Maolan karst forest. ns represents no significant difference between the vertical sample plots and the horizontal sample plots; * represents 0.05 level of significance difference.
Fig. 6 Redundancy analysis of quantitative characteristics between sexual systems and environmental factors. The dotted line in the graph represents the environmental factor, and the solid line represents the quantitative characteristics of the different systems. E: Elevation; SP: Slope position; SA: Slope aspect; SOC: Soil organic carbon; TN: Total nitrogen; TP: Total phosphorus; HN: Number of individual with hermaphroditism; HP: Proportion of hermaphroditism species; HR: Relative abundance of hermaphroditism; MN: Number of individual with monoecy; MP: Proportion of monoecy species; MR: Relative abundance of monoecy; DN: Number of individual with dioecy; DP: Proportion of dioecy species; DR: Relative abundance of dioecy.
环境因子 Environmental factors | 重要性 排序 Importance order | 解释量 Explained variance (%) | F | P | |
---|---|---|---|---|---|
海拔 Elevation | 1 | 29.9 | 12.8 | 0.002** | |
坡位 Slope position | 2 | 9.1 | 4.3 | 0.036* | |
土壤有机碳 Soil organic carbon | 3 | 2.0 | 0.9 | 0.348 | |
全磷 Total phosphorus | 4 | 1.9 | 0.9 | 0.382 | |
坡向 Slope aspect | 5 | 1.2 | 0.6 | 0.574 | |
全氮 Total nitrogen | 6 | 0.9 | 0.4 | 0.62 |
Table 1 Results of importance order and significance test level of environmental factors to sexual systems
环境因子 Environmental factors | 重要性 排序 Importance order | 解释量 Explained variance (%) | F | P | |
---|---|---|---|---|---|
海拔 Elevation | 1 | 29.9 | 12.8 | 0.002** | |
坡位 Slope position | 2 | 9.1 | 4.3 | 0.036* | |
土壤有机碳 Soil organic carbon | 3 | 2.0 | 0.9 | 0.348 | |
全磷 Total phosphorus | 4 | 1.9 | 0.9 | 0.382 | |
坡向 Slope aspect | 5 | 1.2 | 0.6 | 0.574 | |
全氮 Total nitrogen | 6 | 0.9 | 0.4 | 0.62 |
有机碳 Organic carbon | 全氮 Total nitrogen | 全磷 Total phosphorus | |
---|---|---|---|
海拔 Elevation | 0.210 | 0.049 | ?0.213 |
坡位 Slope position | 0.315 | 0.173 | ?0.115 |
坡向 Slope aspect | 0.165 | 0.140 | 0.046 |
Table 2 Correlation coefficients between soil factors and topography factors
有机碳 Organic carbon | 全氮 Total nitrogen | 全磷 Total phosphorus | |
---|---|---|---|
海拔 Elevation | 0.210 | 0.049 | ?0.213 |
坡位 Slope position | 0.315 | 0.173 | ?0.115 |
坡向 Slope aspect | 0.165 | 0.140 | 0.046 |
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