Soil is a large terrestrial carbon pool so that the evaluation and
prediction of soil respiration is important for understanding and managing
carbon cycling between the pedosphere and the atmosphere. For better
understanding about characteristics and mechanisms of soil respiration, this
study monitored seasonal behaviors of soil gaseous CO2 concentration
profile with relevant soil physical conditions in a meadow field, and
numerically analyzed the monitored data sets to inversely determine time-series
of depth distributions of CO2 production rate in the field by
assuming optimum ranges of depth and moisture condition for aerobic respiration
of soil fauna and flora. The results of the inverse analyses showed that the
depth range of intense CO2 production resided in top soil layers
during summer and moved down into subsoil layers in winter, implying that the depth
range of main CO2 sources can change dynamically with seasons. The
surface CO2 emission rates derived from the inverse analyses fell in
the range typically found in the same kind of land use. The evaluated mean
residence time of gaseous CO2 in the study field was around
half a day. These findings suggested that the modelling assumptions about soil
respiration in this study are effective to probe spatial and temporal behavior of respiratory activity
in a soil layer, and it is still important to integrate facts about in-situ CO2 concentration
profiles with soil physical parameters for quantitatively predicting possible
behaviors of soil respiration in response to hypothetical changes in
atmospheric and soil climates.
References
[1]
Bond-Lamberty, B., & Thomson, A. (2010). Temperature-Associated Increases in the Global Soil Respiration Record. Nature, 464, 579-582. https://doi.org/10.1038/nature08930
[2]
Campbell, G. S., & Norman, J. M. (1998). An Introduction to Environmental Biophysics (2nd ed., p. 279). Springer.
[3]
Currie, J. A. (1960). Gaseous Diffusion in Porous Media Part I—A Non-Steady State Method. British Journal of Applied Physics, 11, 314-317. https://doi.org/10.1088/0508-3443/11/8/302
[4]
Drewitt, G. B., Black, T. A., & Jassal, R. S. (2005). Using Measurements of Soil CO2 Efflux and Concentrations to Infer the Depth Distribution of CO2 Production in a Forest Soil. Canadian Journal of Soil Physics, 85, 213-221. https://doi.org/10.4141/S04-041
[5]
Fierer, N., Chadwick, O. A., & Trumbore, S. E. (2005). Production of CO2 in Soil Profiles of a California Annual Grassland. Ecosystems, 8, 412-429. https://doi.org/10.1007/s10021-003-0151-y
[6]
Guntinas, M. E., Gil-Sotres, F., Leiros, M. C., & Trasar-Cepeda, C. (2013). Sensitivity of Soil Respiration to Moisture and Temperature. Journal of Soil Science and Plant Nutrition, 13, 445-461. https://doi.org/10.4067/S0718-95162013005000035
[7]
Hao, Q., & Jiang, C. (2014). Contribution of Root Respiration to Soil Respiration in a Rape (Brassica campestris L.) Field in Southwest China. Plant, Soil and Environment, 60, 8-14. https://doi.org/10.17221/425/2013-PSE
[8]
Iiyama, I. (2016). Differences between Field-Monitored and Laboratory Measured Soil Moisture Characteristics. Soil Science and Plant Nutrition, 62, 416-422. https://doi.org/10.1080/00380768.2016.1242367
[9]
Iiyama, I., & Hirai, T. (2014). Subsoil Water Available in Suction and Poor in Amount under Continuous Grassland Use. Soil Science and Plant Nutrition, 60, 439-447. https://doi.org/10.1080/00380768.2014.915199
[10]
Iiyama, I., & Iimura, D. (2014). A Simple CO2 Gas Analyzing System for Soil Gas Samples. Journal of Japanese Society of Soil Physics, 128, 33-38. (In Japanese with English Summary)
[11]
Japan Meteorological Agency (2018). Weather Station Data in Moka City in Utsunomiya Local Meteorological Office. http://www.jma.go.jp/jma/en/quickinfo/quickinfo.html
[12]
Jassal, R. S., Black, T. A., Novak, M. D., Gaumont-Guay, D., & Nesic, Z. (2008). Effect of Soil Water Stress on Soil Respiration and Its Temperature Sensitivity in an 18-Year-Old Temperate Douglas-Fir Stand. Global Change Biology, 14, 1305-1318. https://doi.org/10.1111/j.1365-2486.2008.01573.x
[13]
Kanda, T., Takata, Y., Kohyama, K., Ohkura, T., Maejima, Y., Wakabayashi, S., & Obara, H. (2018). New Soil Maps of Japan Based on the Comprehensive Soil Classification System of Japan—First Approximation and Its Application to the World Reference Base for Soil Resources (2006). Japan Agricultural Research Quarterly, 52, 285-292. https://doi.org/10.6090/jarq.52.285
[14]
Kellman, L., Myette, A., & Beltrami, H. (2015). Depth-Dependent Mineral Soil CO2 Production Processes: Sensitivity to Harvesting-Induced Changes in Soil Climate. PLOS ONE, 10, e0134171. https://doi.org/10.1371/journal.pone.0134171
[15]
Lee, D. K., Doolittle, J. J., & Owens, V. N. (2007). Soil Carbon Dioxide Fluxes in Established Switchgrass Land Managed for Biomass Production. Soil Biology and Biochemistry, 39, 178-186. https://doi.org/10.1016/j.soilbio.2006.07.004
[16]
Liu, H.-S., & Li, F.-M. (2005). Photosynthesis, Root Respiration, and Grain Yield of Spring Wheat in Response to Surface Soil Drying. Plant Growth Regulation, 45, 149-154. https://doi.org/10.1007/s10725-004-7864-6
[17]
Liu, X., Wan, S., Su, B., Hui, D., & Luo, Y. (2002). Response of Soil CO2 Efflux to Water Manipulation in a Tallgrass Prairie Ecosystem. Plant and Soil, 240, 213-223. https://doi.org/10.1023/A:1015744126533
[18]
Millington, R. J. (1959). Gas Diffusion in Porous Media. Science, 130, 100-102. https://doi.org/10.1126/science.130.3367.100.b
[19]
Millington, R. J., & Quirk, J. P. (1961). Permeability of Porous Solids. Transactions of the Faraday Society, 57, 1200-1207. https://doi.org/10.1039/tf9615701200
[20]
National Astronomical Observatory of Japan (2020). Rika Nenpyo 2021 (Chronological Scientific Tables 2021) (pp. 532-535). Maruzen Publishing Co. Ltd. (In Japanese)
[21]
Osozawa, S. (1987). Measurement of Soil-Gas Diffusion Coefficient for Soil Diagnosis. Soil Physical Conditions and Plant Growth, 66, 53-60. (In Japanese with English summary)
[22]
Osozawa, S., & Hasegawa, S. (1995). Diel and Seasonal Changes in Carbon Dioxide Concentration and Flux in an Andisol. Soil Science, 160, 117-124. https://doi.org/10.1097/00010694-199516020-00005
[23]
Rao, T. P., & Ito, O. (1998). Differences in Root System Morphology and Root Respiration in Relation to Nitrogen Uptake among Six Crop Species. Japan Agricultural Research Quarterly, 32, 97-103.
[24]
Risk, D., Kellman, L., & Beltrami, H. (2002). Soil CO2 Production and Surface Flux at Four Climate Observatories in Eastern Canada. Global Biogeochemical Cycles, 16, 69-1-69-12. https://doi.org/10.1029/2001GB001831
[25]
Schimel, D. S., House, J. I., Hibbard, K. A., Bousquet, P., Ciais, P., Peyllin, P., Braswell, B. H., Apps, M. J., Baker, D., Bondeau, A., Canadell, J., Churkina, G., Cramer, W., Denning, A. S., Field, C. B., Friedlingstein, P., Goodale, C., Heimann, M., Houghton, R. A., Melillo, J. M., Moore, B., III, Murdlyarso, D., Noble, I., Pacala, S. W., Prentice, I. C., Raupack, M. R., Rayner, P. J., Scholes, R. J., Steffen, W. L., & Wirth, C. (2001). Recent Patterns and Mechanisms of Carbon Exchange by Terrestrial Ecosystems. Nature, 414, 169-172. https://doi.org/10.1038/35102500
[26]
Shimoda, S., Lee, G., Yokoyama, T., Liu, J., Saito, M., & Oikawa, T. (2009). Response of Ecosystem CO2 Exchange to Biomass Productivity in a High Yield Grassland. Environmental and Experimental Botany, 65, 425-431. https://doi.org/10.1016/j.envexpbot.2008.12.007
[27]
Tackett, J. L. (1968). Theory and Application of Gas Chromatography in Soil Aeration Research. Soil Science Society of America Proceedings, 32, 346-350. https://doi.org/10.2136/sssaj1968.03615995003200030025x
[28]
Takata, Y., Nakai, M., & Obara, H. (2009). Digital Soil Map of Japanese Croplands in 1992. Japanese Journal of Soil Science and Plant Nutrition, 80, 502-505. (In Japanese)
[29]
Taylor, S. A. (1949). Oxygen Diffusion in Porous Media as a Measure of Soil Aeration. Soil Science Society of America Proceedings, 14, 55-61. https://doi.org/10.2136/sssaj1950.036159950014000C0013x
[30]
Xu, L., Baldocchi, D. D., & Tang, J. (2004). How Soil Moisture, Rain Pulses, and Growth Alter the Response of Ecosystem Respiration to Temperature. Global Biogeochemical Cycles, 18, Article No. GB4002. https://doi.org/10.1029/2004GB002281
[31]
Zhang, L. H., Chen, Y. N., Zhao, R. F., & Li, W. H. (2010). Significance of Temperature and Soil Water Content on Soil Respiration in Three Desert Ecosystems in Northwest China. Journal of Arid Environments, 74, 1200-1211. https://doi.org/10.1016/j.jaridenv.2010.05.031
[32]
Zhang, Z.-S., Dong, X.-J., Xu, B.-X., Chen, Y.-L., Zhao, Y., Gao, Y.-H., Hu, Y.-G., & Huang, L. (2015). Soil Respiration Sensitivities to Water and Temperature in a Revegetated Desert. Journal of Geophysical Research: Biogeosciences, 120, 773-787. https://doi.org/10.1002/2014JG002805
