Responses of Soil and Microbial C:N:P Stoichiometry to Vegetation Succession in a Karst Region of Southwest China
Abstract
:1. Introduction
2. Materials and Methods
2.1. Study Region
2.2. Soil Sampling
2.3. Chemical Analysis
2.4. Data Analysis
3. Results
3.1. Soil C:N:P Stoichiometry
3.2. Microbial C:N:P Stoichiometry
3.3. Relationships between Soil and Microbial C:N:P Stoichiometry
4. Discussion
4.1. Vegetation Succession Effects on Soil C:N:P Stoichiometry
4.2. Vegetation Succession Effects on Microbial C:N:P Stoichiometry
5. Conclusions
Author Contributions
Funding
Acknowledgments
Conflicts of Interest
References
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Vegetation Type | Canopy Cover (%) | Community Height (m) | Dominant Species | Altitude (m) | Slope (o) |
---|---|---|---|---|---|
Grassland | 74.2 ± 5.5 | 1.6 ± 0.5 | Ischaemum indicum, Imperata cylindrical, Murdannia triquetra | 287–307 | 26.3 ± 5.5 |
Shrubland | 82.5 ± 2.7 | 2.2 ± 0.4 | Vitex negundo, Rhus chinensis | 294–309 | 28.9 ± 6.8 |
Secondary forest | 77.5 ± 4.1 | 6.8 ± 0.7 | Alangium chinense, Itoa orientalis | 292–356 | 30.7 ± 7.2 |
Primary forest | 88.4 ± 3.8 | 8.5 ± 0.5 | Biota orientalis, Sinosideroxylon pedunculatum | 376–578 | 34.5 ± 4.5 |
SOC | TN | TP | SMBC | SMBN | SMBP | Soil C:N | Soil C:P | Soil N:P | SMBC:SMBN | SMBC:SMBP | SMBN:SMBP | |
---|---|---|---|---|---|---|---|---|---|---|---|---|
SOC | 1 | 0.78 ** | 0.36 | 0.36 | 0.68 ** | 0.36 | 0.22 | 0.33 | 0.28 | −0.45 * | −0.33 | 0.06 |
TN | 1 | −0.02 | 0.01 | 0.22 | −0.01 | −0.43 * | 0.55 ** | 0.55 ** | −0.49 * | −0.38 | 0.21 | |
TP | 1 | 0.77 ** | 0.58 ** | 0.46 * | 0.53 ** | −0.57 ** | −0.58 ** | 0.18 | 0.10 | −0.26 | ||
SMBC | 1 | 0.65 ** | 0.33 | 0.56 ** | −0.18 | −0.20 | 0.23 | 0.32 | −0.02 | |||
SMBN | 1 | 0.73 ** | 0.66 ** | 0.01 | −0.03 | −0.36 | −0.16 | 0.07 | ||||
SMBP | 1 | 0.55 ** | −0.15 | −0.19 | −0.28 | −0.39 | −0.42 * | |||||
Soil C:N | 1 | −0.31 | −0.39 | 0.13 | 0.21 | −0.19 | ||||||
Soil C:P | 1 | 0.99 ** | −0.32 | −0.14 | 0.31 | |||||||
Soil N:P | 1 | −0.30 | −0.13 | 0.54 * | ||||||||
SMBC:SMBN | 1 | 0.48 * | −0.30 | |||||||||
SMBC:SMBP | 1 | 0.41 * | ||||||||||
SMBN:SMBP | 1 |
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Song, M.; Peng, W.; Du, H.; Xu, Q. Responses of Soil and Microbial C:N:P Stoichiometry to Vegetation Succession in a Karst Region of Southwest China. Forests 2019, 10, 755. https://doi.org/10.3390/f10090755
Song M, Peng W, Du H, Xu Q. Responses of Soil and Microbial C:N:P Stoichiometry to Vegetation Succession in a Karst Region of Southwest China. Forests. 2019; 10(9):755. https://doi.org/10.3390/f10090755
Chicago/Turabian StyleSong, Min, Wanxia Peng, Hu Du, and Qingguo Xu. 2019. "Responses of Soil and Microbial C:N:P Stoichiometry to Vegetation Succession in a Karst Region of Southwest China" Forests 10, no. 9: 755. https://doi.org/10.3390/f10090755