Variation in Carbon Content among the Major Tree Species in Hemiboreal Forests in Latvia
Abstract
:1. Introduction
2. Materials and Methods
2.1. Study Area
2.2. Sampling Design and Chemical Analysis
- Stump—monolith (both above- and belowground portions), nondifferentiated parts of some roots;
- Coarse roots—diameter greater than or equal to 2 cm;
- Small roots—diameter less than 2 cm.
2.3. Data Analysis
3. Results
4. Discussion
5. Conclusions
Supplementary Materials
Author Contributions
Funding
Institutional Review Board Statement
Informed Consent Statement
Data Availability Statement
Acknowledgments
Conflicts of Interest
References
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Parameter, Unit | Value | Tree Species | |||
---|---|---|---|---|---|
Norway Spruce | Scots Pine | Birch | European Aspen | ||
Number of sample trees | total number | 81 | 102 | 105 | 84 |
Age 1, years | average | 41 | 54 | 35 | 23 |
range | 9–97 | 6–141 | 8–92 | 5–76 | |
Stem height, m | average ± S.E. | 16.6 ± 1.0 | 17.3 ± 0.9 | 18.1 ± 0.8 | 16.6 ± 0.9 |
range | 2.8–30.8 | 1.9–34.5 | 4.9–32.3 | 3.7–29.9 | |
Diameter at breast height, cm | average ± S.E. | 17.5 ± 1.0 | 19.0 ± 0.9 | 14.7 ± 0.7 | 13.8 ± 0.9 |
range | 2.4–36.3 | 1.5–45.3 | 2.7–37.2 | 2.8–34.1 |
Tree Part | Values | Weighted Mean C Content in Tree, g·kg−1 | |||
---|---|---|---|---|---|
Norway Spruce | Scots Pine | Birch | European Aspen | ||
Aboveground parts | average ± S.E. | 524.4 ± 1.4 a | 530.4 ± 1.3 b | 520.6 ± 1.4 c | 510.2 ± 1.3 d |
median | 524.2 | 531.3 | 520.4 | 509.8 | |
range | 483.9–551.7 | 467.2–562.9 | 487.8–559.7 | 480.9–534.6 | |
Belowground parts | average ± S.E. | 529.9 ± 2.6 a | 531.5 ± 2.4 a | 527.9 ± 1.7 a | 507.4 ± 2.1 b |
median | 529.0 | 529.4 | 528.9 | 508.4 | |
range | 497.2–559.3 | 486.5–567.0 | 502.9–549.6 | 482.1–531.9 | |
Whole | average ± S.E. | 526.5 ± 2.3 a | 533.2 ± 1.6 b | 521.4 ± 1.5 c | 509.0 ± 1.6 d |
median | 526.4 | 535.5 | 521.5 | 507.9 | |
range | 489.8–546.2 | 502.1–554.7 | 501.3–550.5 | 490.0–527.4 |
Values | Weighted Mean C Content for Forest Stands, g·kg−1 | |||
---|---|---|---|---|
Stands Dominated by Norway Spruce | Stands Dominated by Scots Pine | Stands Dominated by Birch | Stands Dominated by European Aspen | |
Average ± S.E. | 525.6 ± 0.1 a | 531.3 ± 0.1 b | 521.4 ± 0.1 c | 512.7 ± 0.1 d |
Median | 526.4 | 532.1 | 521.4 | 512.0 |
Range | 518.7–529.6 | 518.4–533.2 | 513.9–527.9 | 509.0–523.4 |
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Bārdule, A.; Liepiņš, J.; Liepiņš, K.; Stola, J.; Butlers, A.; Lazdiņš, A. Variation in Carbon Content among the Major Tree Species in Hemiboreal Forests in Latvia. Forests 2021, 12, 1292. https://doi.org/10.3390/f12091292
Bārdule A, Liepiņš J, Liepiņš K, Stola J, Butlers A, Lazdiņš A. Variation in Carbon Content among the Major Tree Species in Hemiboreal Forests in Latvia. Forests. 2021; 12(9):1292. https://doi.org/10.3390/f12091292
Chicago/Turabian StyleBārdule, Arta, Jānis Liepiņš, Kaspars Liepiņš, Jeļena Stola, Aldis Butlers, and Andis Lazdiņš. 2021. "Variation in Carbon Content among the Major Tree Species in Hemiboreal Forests in Latvia" Forests 12, no. 9: 1292. https://doi.org/10.3390/f12091292