Abstract
Macropores resulting from soil pedogenesis, biological activity, and agricultural practices play important roles in soil water, chemical and gas transport; however, seldom studies focus on the effect of soil macropores on CO2 behavior. In this study, a 150-day soil column incubation experiment was conducted to investigate the CO2 behavior in a homogeneous soil column and a soil column with an artificial macropore, which have the same total porosity. The results showed that the cumulative CO2 fluxes observed in the soil with a macropore (57.2 g m−2) were higher than those in the homogeneous soil (52.7 g m−2). The soil cumulative CO2 fluxes measured using column incubation can fit the kinetic model, and a higher carbon mineralization rate in the soil with the macropore was found. The results of the incubation experiment also suggest that macropore increased the gas diffusivities, and thus decreased the CO2 concentrations in the soil profile. This study proposed a simulation experiment and quantified the effect of macropore on soil CO2 behavior, which could help to understand the mechanism of CO2 emission from soil with macropores especially caused by agricultural practices.
References
Badawi N, Johnsen AR, Brandt KK, Sørensen J, Aamand J (2013) Hydraulically active biopores stimulate pesticide mineralization in agricultural subsoil. Soil Biol Biochem 57:533–541
Bottinelli N, Zhou H, Boivin P, Zhang ZB, Jouquet P, Hartmann C, Peng X (2016) Macropores generated during shrinkage in two paddy soils using X-ray micro-computed tomography. Geoderma 265:78–86
Deepagoda TKKC, Moldrup P, Schjonning P, de Jonge LW, Kawamoto K, Komatus T (2011) Density-corrected models for gas diffusivity and air permeability in unsaturated soil. Vadose Zone J 10:226–238
Deurer M, Grinev D, Young I, Clothier BE, Muller K (2009) The impact of soil carbon management on soil macropore structure: a comparison of two apple orchard systems in New Zealand. Eur J Soil Sci 60:945–955
Gomez E, Garland JL (2012) Effects of tillage and fertilization on physiological profiles of soil microbial communities. Appl Soil Ecol 61:327–332
Hamamoto S, Moldrup P, Kawamoto K, de Jonge LW, Schjonning P, Komatsu T (2011) Two-region extended Archie’s law model for soil air permeability and gas diffusivity. Soil Sci Soc Am J 75:795–806
IPCC (2014) Summary for policy makers. In: Edenhofer O, Pichs-Madruga R, Sokona Y, Farahani E, Kadner S, Seyboth K, Adler A, Baum I, Brunner S, Eickemeier P, Kriemann B, Savolainen J, Schlomer S, von Stechow C, Zwickel T, Minx JC (eds) Climate change 2014: synthesis report. The fifth assessment report of the intergovernmental panel on climate change. Cambridge University Press, Cambridge, pp 2–8
Josa R, Gorchs G, Ginovart M, Sole-Benet A (2013) Influence of tillage on soil macropore size, shape of top layer and crop development in a sub-humid environment. Biologia 68:1099–1103
Katuwal S, Norgaard T, Moldrup P, Lamande M, Wildenschild D, de Jonge LW (2015) Linking air and water transport in intact soils to macropore characteristics inferred from X-ray computed tomography. Geoderma 237–238:9–20
Kuncoro PH, Koga K, Satta N, Muto Y (2014) A study on the effect of compaction on transport properties of soil gas and water. II: soil pore structure indices. Soil Tillage Res 143:180–187
Lal R (2010) Managing soils and ecosystems for mitigating anthropogenic carbon emissions and advancing global food security. Bioscience 60:708–721
Larsbo M, Koestel J, Jarvis N (2014) Relations between macropore network characteristics and the degree of preferential solute transport. Hydrol Earth Syst Sci 18:5255–5269
Li ZT, Liu DM, Cai YD, Shi YL (2016) Investigation of methane diffusion in low-rank coals by a multiparous diffusion model. J Nat Gas Sci Eng 33:97–107
Luo LF, Lin H, Schmidt J (2010) Quantitative relationships between soil macropore characteristics and preferential flow and transport. Soil Sci Soc Am J 74:1929–1937
Masis-Melendez F, de Jonge LW, Deepagoda TKKC, Tuller M, Moldrup P (2015) Effects of soil bulk density on gas transport parameters and pore-network properties across a sandy field site. Vadose Zone J 14:1–12
Moitinho MR, Padovan MP, Panosso AR, Teixeira DD, Ferraudo AS, La Scala N (2015) On the spatial and temporal dependence of CO2 emission on soil properties in sugarcane (Saccharum spp.) production. Soil Tillage Res 148:127–132
Mordhorst A, Peth S, Horn R (2014) Influence of mechanical loading on static and dynamic CO2 efflux on differently textured and managed Luvisols. Geoderma 219:1–13
Nicoloso RS, Rice CW, Amado TJC (2016) Kinetic to saturation model for simulation of soil organic carbon increase to steady state. Soil Sci Soc Am J 80:147–156
Saviozzi A, Vanni G, Cardelli R (2014) Carbon mineralization kinetics in soils under urban environment. Appl Soil Ecol 73:64–69
Silva SR, da Silva IR, de Barros NF, Mendonca ED (2011) Effect of compaction on microbial activity and carbon and nitrogen transformations in two oxisols with different mineralogy. Rev Bras De Cienc Do Solo 35:1141–1149
Stanford G, Smith SJ (1972) Nitrogen mineralization potentials of soils. Soil Sci Soc Am Proc 36:465–472
Stolpovsky K, Gharasoo M, Thullner M (2012) The impact of pore-size heterogeneities on the spatiotemporal variation of microbial metabolic activity in porous media. Soil Sci 177:98–110
Yazdanpanah N (2016) CO2 emission and structural characteristics of two calcareous soils amended with municipal solid waste and plant residue. Solid Earth Discuss 7:3151–3177
Acknowledgements
This research was supported by the 100 Talents Program of the Chinese Academy of Sciences and by Institute for Sustainable Agro-ecosystem Services (ISAS), The University of Tokyo, for soil sampling.
Author information
Authors and Affiliations
Corresponding author
Rights and permissions
About this article
Cite this article
Guo, L., Nishimura, T., Imoto, H. et al. Macropores regulate CO2 behavior in an andisol soil. Paddy Water Environ 16, 391–396 (2018). https://doi.org/10.1007/s10333-018-0632-4
Received:
Revised:
Accepted:
Published:
Issue Date:
DOI: https://doi.org/10.1007/s10333-018-0632-4