Morphological Traits and Biomass Allocation of Leymus secalinus along Habitat Gradient in a Floodplain Wetland of the Heihe River, China
Abstract
:1. Introduction
2. Materials and Methods
2.1. Study Sites
2.2. Experimental Method and Design
2.2.1. Measurement of the Leaf and Stem Traits of L. secalinus
2.2.2. Measurement of the Root Morphological Traits and Organ Biomass of L. secalinus
2.2.3. Measurement of Soil Properties (Moisture Content, Soil Bulk Density, Soil Salinity, and pH)
2.3. Statistical Analysis
3. Results
3.1. Soil Properties of Each Habitat
3.2. Plant Community Traits in Each Habitat
3.3. Population Traits of L. secalinus
3.4. Analysis of the Biomass Ratio of L. secalinus Roots, Stems and Leaves
3.5. Functional Traits of L. secalinus in Each Habitat
3.6. Effects of Environmental Factors on L. secalinus Functional Traits
3.7. Correlations between the Root, Stem and Leaf Morphological Characteristics and Biomass Allocation of L. secalinus
4. Discussion
5. Conclusions
Supplementary Materials
Author Contributions
Funding
Data Availability Statement
Acknowledgments
Conflicts of Interest
Abbreviations
References
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Plot | I | II | III |
---|---|---|---|
Main species | Phragmites australis, Leymus secalinus, Achnatherum splendens, Myricaria bracteata | Leymus secalinus, Achnatherum splendens, Sophora alopecuroides | Leymus secalinus, Achnatherum splendens |
Average height (cm) | 73.4 ± 3.7 a | 37.5 ± 0.9 c | 43.4 ± 2.2 b |
Coverage (%) | 81 ± 4 a | 56 ± 3 b | 39 ± 2 c |
Density (plants/m2) | 61 ± 3 a | 34 ± 2 b | 29 ± 1 c |
Plot | I | II | III |
---|---|---|---|
Leaf area (cm2) | 0.97 ± 0.09 b | 1.17 ± 0.03 a | 1.22 ± 0.06 a |
Leaf thickness (mm) | 0.48 ± 0.01 a | 0.39 ± 0.01 b | 0.37 ± 0.01 b |
Specific leaf area (cm2/g) | 0.99 ± 0.10 a | 0.86 ± 0.03 b | 0.85 ± 0.04 b |
Stem length (cm) | 31.26 ± 2.09 a | 23.38± 0.65 b | 10.18 ± 0.42 b |
Stem diameter (mm) | 1.88 ± 0.10 b | 2.20 ± 0.14 a | 1.82 ± 0.07 b |
Rhizome diameter (mm) | 0.54 ± 0.03 c | 0.72 ± 0.02 b | 0.96 ± 0.03 a |
Rhizome length (cm) | 503.20 ± 7.74 b | 519.40 ± 7.85 a | 272.45 ± 5.57 c |
root surface area (cm2) | 80.75 ± 2.82 b | 117.70 ± 2.83 a | 84.22 ± 2.06 b |
Specific root length (cm/g) | 340.77 ± 24.67 a | 275.47 ± 11.62 b | 256.37± 8.16 b |
Stem biomass (g) | 0.39 ± 0.02 b | 0.27 ± 0.01 b | 0.20 ± 0.01 c |
Leaf biomass (g) | 1.01 ± 0.02 b | 1.41 ± 0.04 a | 1.50 ± 0.09 a |
Rhizome biomass (g) | 1.68 ± 0.09 b | 1.97 ± 0.06 a | 1.08± 0.02 c |
Root–shoot ratio | 1.75 ± 0.09 a | 1.07 ± 0.05 b | 0.55 ± 0.02 c |
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Wen, J.; Li, Q.; Zhao, C.; Kang, M. Morphological Traits and Biomass Allocation of Leymus secalinus along Habitat Gradient in a Floodplain Wetland of the Heihe River, China. Agronomy 2024, 14, 1899. https://doi.org/10.3390/agronomy14091899
Wen J, Li Q, Zhao C, Kang M. Morphological Traits and Biomass Allocation of Leymus secalinus along Habitat Gradient in a Floodplain Wetland of the Heihe River, China. Agronomy. 2024; 14(9):1899. https://doi.org/10.3390/agronomy14091899
Chicago/Turabian StyleWen, Jun, Qun Li, Chengzhang Zhao, and Manping Kang. 2024. "Morphological Traits and Biomass Allocation of Leymus secalinus along Habitat Gradient in a Floodplain Wetland of the Heihe River, China" Agronomy 14, no. 9: 1899. https://doi.org/10.3390/agronomy14091899