An Interseasonal Comparison of Soil Respiration in Xeric and Mesic Pine Forest Ecosystems in Central Siberia
Abstract
:1. Introduction
2. Materials and Methods
2.1. Study Area
2.2. Field Measurements
2.3. Data Analysis
3. Results
3.1. Meteorological Characteristics
- HTC > 1.0—“Wet seasons”: 2015, 2017, 2020–2022;
- HTC < 1.0—“Dry seasons”: 2012, 2013, 2016.
3.2. Soil CO2 Emission Dynamics in Lichen Pine Forest
3.3. Soil CO2 Emission Dynamics in Feather Moss Pine Forest
3.4. Soil Microclimate Factors and Emission Rates
3.5. Inter-Seasonal Soil Emissions
4. Discussion
4.1. Seasonal Soil CO2 Emission Dynamics of the Xeric and Mesic Sites: Dry and Wet Seasons
4.2. Microclimatic Factors Impact on Soil CO2 Emissions
4.3. Cumulative CO2 Emissions during Dry and Wet Seasons
5. Conclusions
Author Contributions
Funding
Institutional Review Board Statement
Informed Consent Statement
Data Availability Statement
Acknowledgments
Conflicts of Interest
References
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Characteristic | LPF | FMPF |
---|---|---|
Elevation, m a.s.l. | 116 | 117 |
Forest composition | 10P * | 10P * |
Tree species | Pinus sylvestris L. | Pinus sylvestris L. |
Stand density, trees per ha | 1301 | 1146 |
Forest age, years | 73 | 119 |
Ground cover | Cladonia stellaris (Opiz) Pouzar et Vezda, Cl. arbuscula (Wallr) Flot | Pleurozium schreberi (Brid.) Mitt, Dicranum polysetum Michx., Hylocomium splendens (Hedw.) Schimp. |
Soil carbon pool, g per m2 (top 50 cm) | 1960 | 1930 |
Carbon pool in ground cover, g per m2 ** | 445–470 | 240–300 |
Mean soil temperature, °C | 13.9 ± 0.9 | 11.6 ± 1.2 |
Mean soil water content, m3 m−3 | 0.23 ± 0.01 | 0.29 ± 0.01 |
Factor | LPF | FMPF |
---|---|---|
Soil temperature: | ||
Dry seasons | R2adj. = 0.027 | R2adj. = 0.31 |
Wet seasons | R2adj. = 0.41 | R2adj. = 0.14 |
Soil moisture: | ||
Dry seasons | R2adj. = 0.18 | R2adj. = −0.0075 |
Wet seasons | R2adj. = −0.019 | R2adj. = −0.0066 |
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Anastasia, M.; Vaganov, E.; Panov, A.; Polosukhina, D.; Prokushkin, A. An Interseasonal Comparison of Soil Respiration in Xeric and Mesic Pine Forest Ecosystems in Central Siberia. Atmosphere 2024, 15, 988. https://doi.org/10.3390/atmos15080988
Anastasia M, Vaganov E, Panov A, Polosukhina D, Prokushkin A. An Interseasonal Comparison of Soil Respiration in Xeric and Mesic Pine Forest Ecosystems in Central Siberia. Atmosphere. 2024; 15(8):988. https://doi.org/10.3390/atmos15080988
Chicago/Turabian StyleAnastasia, Makhnykina, Eugene Vaganov, Alexey Panov, Daria Polosukhina, and Anatoly Prokushkin. 2024. "An Interseasonal Comparison of Soil Respiration in Xeric and Mesic Pine Forest Ecosystems in Central Siberia" Atmosphere 15, no. 8: 988. https://doi.org/10.3390/atmos15080988