Effects of Understory Vegetation Heterogeneity on Soil Organic Carbon Components in Cunninghamia lanceolata Plantation
Abstract
:1. Introduction
2. Materials and Methods
2.1. Study Site
2.2. Plot Establishment
2.3. Soil Sample Collection and Measurement
2.4. Statistical Analyses
3. Results
3.1. Mass Fraction Characteristics of Soil TOC
3.2. Mass Fraction Characteristics of Soil Organic Carbon Components
3.3. The Percentage of Soil Organic Carbon Composition to TOC
3.4. Correlation Analysis of Soil Organic Carbon Components with Physicochemical Factors
4. Discussion
4.1. Characteristics of Changes in Soil TOC in Different Understory Vegetation
4.2. Characteristics of Changes in Soil Organic Carbon Components in Different Understory Vegetation
4.3. Relationship between Soil Organic Carbon Components and Soil Physicochemical Factors
5. Conclusions
Author Contributions
Funding
Data Availability Statement
Acknowledgments
Conflicts of Interest
References
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Undergrowth Vegetation | Indocalamus tessellatus | Diplazium donianum | Oreocnide frutescens |
---|---|---|---|
Height (cm) | 44.2 ± 1.4 | 108.3 ± 13.0 | 130.8 ± 4.6 |
Ground diameter (cm) | 0.53 ± 0.1 | 5.80 ± 1.1 | 1.7 ± 0.68 |
Slope aspect | Southwest | Southwest | Southwest |
Slope position | Downslope | Mid-slope | Upslope |
Temperature (°C) | 18.96 | 19.05 | 18.91 |
Altitude (masl) | 110 ± 3 | 125 ± 3 | 130 ± 3 |
Abundance (%) | 90.3 ± 0.7 | 83.1 ± 2.5 | 79.0 ± 5.7 |
Associated understory vegetation | Phoebe bournei (Hemsl.) Yang, Lophatherum gracile Brongn., Diplazium donianum. | Callicarpa kochiana Makino, Phoebe bournei, Indocalamus tessellatus, Oreocnide frutescens, Dicranopteris linearis (Burm.) Underw. | Phoebe bournei, Indocalamus tessellatus, Diplazium donianum, Embelia rudis Hand.-Mazz., Callicarpa kochiana, Dicranopteris linearis, Melastoma dodecandrum Lour. |
Index | Soil Layers (cm) | Indocalamus tessellatus | Diplazium donianum | Oreocnide frutescens |
---|---|---|---|---|
PROC/TOC | 0–10 | 81.46 ± 7.79 Aa | 74.39 ± 14.69 Aa | 74.89 ± 12.29 Aa |
10–20 | 64.548 ± 9.56 Aa | 72.07 ± 9.02 Aa | 74.13 ± 7.25 Aa | |
20–40 | 83.53 ± 8.48 Aa | 70.35 ± 11.95 Aa | 68.65 ± 19.40 Aa | |
40–60 | 86.04 ± 15.02 Aa | 72.72 ± 10.62 Aa | 76.42 ± 25.85 Aa | |
PROOC/TOC | 0–10 | 21.66 ± 1.03 Ba | 35.46 ± 4.13 Aa | 27.35 ± 5.46 Ba |
10–20 | 31.96 ± 2.53 Aa | 27.35 ± 4.72 ABab | 21.76 ± 4.72 Ba | |
20–40 | 20.27 ± 2.20 Aa | 17.19 ± 6.74 Ab | 22.84 ± 5.77 Aa | |
40–60 | 13.58 ± 4.85 Aa | 23.47 ± 11.38 Aa | 14.50 ± 2.17 Ab | |
PMBC/TOC | 0–10 | 2.59 ± 0.35 Aa | 1.54 ± 0.20 Ba | 1.84 ± 0.71 ABa |
10–20 | 2.02 ± 0.84 Aa | 1.54 ± 0.56 Aa | 2.08 ± 1.48 Aa | |
20–40 | 2.35 ± 0.29 Aa | 1.31 ± 0.48 Ba | 1.82 ± 0.50 ABa | |
40–60 | 1.90 ± 0.90 Aa | 1.75 ± 0.98 Aa | 0.69 ± 0.46 Aa | |
PDOC/TOC | 0–10 | 1.17 ± 0.03 Ab | 1.29 ± 0.34 Ab | 1.08 ± 0.21 Ab |
10–20 | 1.74 ± 0.43 Aa | 2.08 ± 0.35 Aa | 2.00 ± 0.20 Aa | |
20–40 | 2.63 ± 0.81 Aa | 2.19 ± 0.42 Aa | 2.50 ± 0.93 Aa | |
40–60 | 3.21 ± 2.27 Aa | 2.23 ± 0.46 Aa | 2.13 ± 0.79 Aa |
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Song, R.; Han, X.; Yang, Q.; Zheng, Z.; Xi, D. Effects of Understory Vegetation Heterogeneity on Soil Organic Carbon Components in Cunninghamia lanceolata Plantation. Land 2022, 11, 2300. https://doi.org/10.3390/land11122300
Song R, Han X, Yang Q, Zheng Z, Xi D. Effects of Understory Vegetation Heterogeneity on Soil Organic Carbon Components in Cunninghamia lanceolata Plantation. Land. 2022; 11(12):2300. https://doi.org/10.3390/land11122300
Chicago/Turabian StyleSong, Ruipeng, Xiaomeng Han, Qifan Yang, Zhiheng Zheng, and Dan Xi. 2022. "Effects of Understory Vegetation Heterogeneity on Soil Organic Carbon Components in Cunninghamia lanceolata Plantation" Land 11, no. 12: 2300. https://doi.org/10.3390/land11122300
APA StyleSong, R., Han, X., Yang, Q., Zheng, Z., & Xi, D. (2022). Effects of Understory Vegetation Heterogeneity on Soil Organic Carbon Components in Cunninghamia lanceolata Plantation. Land, 11(12), 2300. https://doi.org/10.3390/land11122300