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Effect of Zeolite on the Decomposition Resistance of Organic Matter in Tropical Soils under Global Warming
Authors: Mai Thanh Truc, Masao Yoshida
Abstract:
Global temperature had increased by about 0.5oC over the past century, increasing temperature leads to a loss or a decrease of soil organic matter (SOM). Whereas soil organic matter in many tropical soils is less stable than that of temperate soils, and it will be easily affected by climate change. Therefore, conservation of soil organic matter is urgent issue nowadays. This paper presents the effect of different doses (5%, 15%) of Ca-type zeolite in conjunction with organic manure, applied to soil samples from Philippines, Paraguay and Japan, on the decomposition resistance of soil organic matter under high temperature. Results showed that a remain or slightly increase the C/N ratio of soil. There are an increase in percent of humic acid (PQ) that extracted with Na4P2O7. A decrease of percent of free humus (fH) after incubation was determined. A larger the relative color intensity (RF) value and a lower the color coefficient (6logK) value following increasing zeolite rates leading to a higher degrees of humification. The increase in the aromatic condensation of humic acid (HA) after incubation, as indicates by the decrease of H/C and O/C ratios of HA. This finding indicates that the use of zeolite could be beneficial with respect to SOM conservation under global warming condition.Keywords: Global warming, Humic substances, Soil organicmatter, Zeolite.
Digital Object Identifier (DOI): doi.org/10.5281/zenodo.1076844
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[1] Baranciková, G., N. Senesi and G. Brunetti. "Chemical and spectroscopic characterization of humic acids isolated from different Slovak soil type,." Geoderma, 78: 251-266, 1997.
[2] Colella C.. "Ion exchange equilibria in zeolite minerals," Mineralium Deposita, 31: 554-562, 1996.
[3] Gonzales-Vila, F.J., F. Martin, C. Del Rioj and R. Frund. " Structure characteristics and geochemical significance of humic acids isolated from three Spanish lignite deposit," Science of The Total Environmental, 117-118: 335-343, 1992.
[4] Kumada K.. " Chemistry of Soil organic matter," Elsevier, Amsterdam: 241, 1987.
[5] Kumada, K., O. Sato, Y. Ohsumi and S. Ohta. "Humus composition of mountain soils in central Japan with special reference to the distribution of P type humic acid," Soil Science and Plant Nutrition, 13: 151-158, 1967.
[6] Ming. DW and Boettingger, J.L.. "Zeolites in soil environments. In: D.L.Bish & D.W.Ming (ed.) Natural Zeolites: Occurrence, Properties, Aplications, Reviews in Mineralogy & Geochemistry," Mineralogical Society of America & Geochemical Society, Washington DC, 45: 323- 345, 2001.
[7] Polat, E., M. Karaca, H. Demir and A. Naci-Onus. " Use of natural zeolite (clinoptilolite) in agriculture," Journal of Fruit Ornamental and Plant research, 12: 183-189, 2004.
[8] Richard, T., J. Conant, Megan Steinweg, L. Haddix Michelle, A.Paul Eldor, F.Plante Alain and Six.Johan. " Experimental warming shows that decomposition temperature sensitivity icreases with soil organic matter recalcitrance," Ecology, 89 (9): 2384-2391, 2008.
[9] Ross, S.. " Organic matter in tropical soils: current conditions, concerns and prospects for conservation," Progress in Physical Geography, 17: 265-305, 1993.
[10] Schimel, D.S., B. H. Braswell, E. Holland, R. McKeown, D.S. Ojima, T. H. Painter, W. J. Parton and A. R. Townsend. "Climatic, Edaphic, and Biotic Controls Over Storage and Turnover of Carbon in Soils," Global Biogeochem. Cycles, 8 (3): 279-294, 1994.
[11] Yoshida, M., K. Sakagami, R. Hamada and T. Kurobe. "Studies on the properties of organic matter in buried humic horizon derived from volcanic ash. I. Humus composition of buried humic horizons," Soil Science and Plant Nutrition, 24 (2): 277-287, 1978.