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 GEP  Vol.6 No.11 , November 2018
Role of Biochar Amendment on Soil Carbon Mineralization and Microbial Biomass
Abstract:
To understand the influence of biochar properties (pyrolysis temperature and types) on soil physicochemical properties, we investigated the changes of soil organic carbon mineralization, nutrient contents and microbial biomass after 135 d incubation. Results showed that both corn straw (CB) and rice straw (RB) derived biochars increase the mineralization of organic carbon and nitrogen in the soil, and these biochars pyrolysised at 500?C (CB500, RB500) significantly enhanced the mineralization of soil organic nitrogen. In comparison with control treatment, the application of biochar significantly increased the contents of soil organic carbon, available P and K in soil. Moreover, the activity of soil microbe was enhanced with biochar amendment. Among all treatments, RB500 significantly increased the content of soil microbial biomass carbon (379 ± 9 mg?kg?1) in soil. Our results suggested that the application of biochars to soil improve soil quality, while the biochar type and pyrolysis temperature should be taken into consideration before its application in agro-ecosystem.
Cite this paper: Wang, Y. and Li, M. (2018) Role of Biochar Amendment on Soil Carbon Mineralization and Microbial Biomass. Journal of Geoscience and Environment Protection, 6, 173-180. doi: 10.4236/gep.2018.611013.
References

[1]   Domene, X., Mattana, S., Hanley, K., Enders, A., & Lehmann, J. (2014). Medium-Term Effects of Corn Biochar Addition on Soil Biota Activities and Functions in a Temperate Soil Cropped to Corn. Soil BiolBiochem., 72, 152-162. https://doi.org/10.1016/j.soilbio.2014.01.035

[2]   Farrell, M., Kuhn, T. K., Macdonald, L. M., Maddern, T. M., Murphy, D. V., Hall, P. A., Singh, B. P., Baumann, K., Krull, E. S., & Baldock, J. A. (2013). Microbial Utilisation of Biochar-Derived Carbon. Science of The Total Environment, 465, 288-297. https://doi.org/10.1016/j.scitotenv.2013.03.090

[3]   Gomez, J. D., Denef, K., Stewart, C. E., Zheng, J., & Cotrufo, M. F. (2014). Biochar Addition Rate Influences Soil Microbial Abundance and Activity in Temperate Soils. European Journal of Soil Science, 65, 28-39. https://doi.org/10.1111/ejss.12097

[4]   Jones, D. L., Rousk, J., Edwards-Jones, G., DeLuca, T. H., & Murphy, D. V. (2012). Biochar-Mediated Changes in Soil Quality and Plant Growth in a Three Year Field Trial. Soil Biology and Biochemistry, 45, 113-124. https://doi.org/10.1016/j.soilbio.2011.10.012

[5]   Kolb, S. E., Fermanich, K. J., & Dornbush, M. E. (2009). Effect of Charcoal Quantity on Microbial Biomass and Activity in Temperate Soils. Soil Science Society of America Journal, 73, 1173-1181. https://doi.org/10.2136/sssaj2008.0232

[6]   Kuzyakov, Y., Bogomolova, I., & Glaser, B. (2014). Biochar Stability in Soil: Decomposition during Eight Years and Transformation as Assessed by Compound-Specific 14C Analysis. Soil Biology and Biochemistry, 70, 229-236. https://doi.org/10.1016/j.soilbio.2013.12.021

[7]   Lehmann, J., Gaunt, J., & Rondon, M. (2006). Bio-Char Sequestration in Terrestrial Ecosystems—A Review. Mitigation and Adaptation Strategies for Global Change, 11, 395-419. https://doi.org/10.1007/s11027-005-9006-5

[8]   Ming, L. I., Ming, L. I. U., Li, Z. P., Jiang, C. Y., & Meng, W. U. (2016). Soil N Transformation and Microbial Community Structure as Affected by Adding Biochar to a Paddy Soil of Subtropical China. Journal of Integrative Agriculture, 15, 209-219. https://doi.org/10.1016/S2095-3119(15)61136-4

[9]   Sanchez-Monedero, M. A., Cayuela, M. L., Roig, A., Jindo, K., Mondini, C., & Bolan, N. (2017). Role of Biochar as an Additive in Organic Waste Composting. Bioresource Technology, 247, 1155-1164. https://doi.org/10.1016/j.biortech.2017.09.193

[10]   Singh, N., Abiven, S., Maestrini, B., Bird, J. A., Torn, M. S., Schmidt.M. W.I. (2014). Transformation and Stabilization of Pyrogenic Organic Matter in a Temperate Forest Field Ex-periment. Global Change Biology, 20, 1629-1642. https://doi.org/10.1111/gcb.12459

[11]   Wu, F. P., Jia, Z. K., Wang, S. G., Chang, S. X., & Startsev, A. (2013). Contrasting Effects of Wheat Straw and Its Biochar on Greenhouse Gas Emissions and Enzyme Activities in a Chernozemic Soil. Biology and Fertility of Soils, 49, 555-565. https://doi.org/10.1007/s00374-012-0745-7

[12]   Yuan, J. H., Xu, R. K., Qian, W., & Wang, R. H. (2011). Comparison of the Ameliorating effects on an Acidic Ultisol between Four Crop Straws and Their Biochars. Journal of Soils and Sediments, 11, 741-750. https://doi.org/10.1007/s11368-011-0365-0

[13]   Zeng, X. Y., Ma, Y. T., & Ma, L. R. (2007). Utilization of Straw in Biomass Energy in China. Renewable and Sustainable Energy Reviews, 11, 976-987. https://doi.org/10.1016/j.rser.2005.10.003

 
 
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