Soil organic carbon and total N stocks in paddy soils, Central Plain of Thailand
Main Article Content
Abstract
Soil organic carbon (SOC) and total nitrogen (total N) stocks are the important processes affecting global warming crisis. Such processes also play a key role for improving soil productivity and land use sustainability. This study aimed to investigate SOC and total N stocks in paddy soils, Central Plain of Thailand. Representative paddy soils with different soil development, including 3 soil series from Inceptisols, 3 soil series from Alfisols and 2 soil series from Ultisols were selected for study. Field morphology was studied and soil sample from each genetic horizon was collected to determine SOC and total N in whole soil and each soil particle size fraction. The results showed that each soil order had significantly different SOC and total N stocks in plough layers. Inceptisols contained the highest SOC and total N, followed by Alfisols and Ultisols, respectively. The relative proportions of total organic carbon (OC) and total N in soil particle size fractions of all soil orders were ranked in the order of clay > silt > sand, respectively. Contents of OC and total N in whole soil and soil particle size fractions were negatively correlated with elevation, soil Munsell value and soil Munsell chroma.
Article Details
References
เอิบ เขียวรื่นรมณ์. 2533. ดินของประเทศไทย. ลักษณะ การแจกกระจาย และการใช้. ภาควิชาปฐพีวิทยา คณะเกษตร มหาวิทยาลัยเกษตรศาสตร์, กรุงเทพฯ.
Batjes, N. H. 1996. Total carbon and nitrogen in the soils of the world. Eur. J. Soil Sci. 47: 151-163.
Buol, S. W., R. J. Southard, R. C. Graham, and P. A. McDaniel. 2011. Soil genesis and classification. 6th Edition. Wiley-Blackwell, Chichester.
Christensen, B. T. 1992. Physical fractionation of soil and organic organic matter in primary particle size and density separates. Adv. Soil Sci. 20: 1-90.
Diekow, J., J. Mielniczuk, H. Knicker, C. Bayer, D. P. Dick, and I. Kögel-Knabner. 2005. Carbon and nitrogen stocks in physical fractions of a subtropical Acrisol as influenced by long-term no-till cropping systems and N fertilization. Plant Soil. 268: 319-328.
Doetterl, S., A. A. Berhe, E. Nadeu, Z. Wang, M. Sommer, and P. Fiener. 2016. Erosion, deposition and soil carbon: A review of process-level controls, experimental tools and models to address C cycling in dynamic landscapes. Earth-Sci. Rev. 154: 102-122.
Eswaran, H., E. van den Berg, and P. F. Reich. 1993. Organic carbon in soils of the world. Soil Sci. Soc. Am. J. 57: 193-194
Feller, C., and M. H. Beare. 1997. Physical control of soil organic matter dynamics in the tropics. Geoderma. 79: 69-116.
Gee, G. W., and J. W. Bauder. 1986. Particle-size analysis. P. 383-411. In: A. Klute. Methods of Soil Analysis, Part I. Physical and Mineralogical Methods. Am. Soc. Agron. Inc., Madison, WI. Harrison-Kirk, T., M. H. Beare, E. D. Meenken, and L. M. Condron. 2014. Soil organic matter and texture affect responses to dry/wet cycles: Changes in soil organic matter fractions and relationships with C and N mineralisation. Soil Biol. Biochem. 74: 50-60.
Hassink, J. 1997. The capacity of soils to preserve organic C and N by their association with clay and silt particles. Plant Soil. 191: 77-87.
Karchegani, P. M., S. Ayoubi, M. R. Mosaddeghi, and N. Honarjoo. 2012. Soil organic carbon pools in particle-size fractions as affected by slope gradient and land use change in hilly regions, western Iran. J. Mt. Sci. 9: 87-95.
Konen, M. E., C. L. Burras, and J. A. Sandor. 2003. Organic carbon, texture, and quantitative color measurement relationships for cultivated soils in North Central Iowa. Soil Sci. Soc. Am. J. 67: 1823-1830.
Lorenz, K., and R. Lal. 2005. The depth distribution of soil organic carbon in relation to land use and management and the potential of carbon sequestration in subsoil horizons. Adv. Agron. 88: 35-66.
Moritsuka, N., K. Matsuoka , K. Katsura, S. Sano, and J. Yanai. 2014. Soil color analysis for statistically estimating total carbon, total nitrogen and active iron contents in Japanese agricultural soils. Soil Sci. Plant Nutr. 60: 475-485
National Soil Survey Center. 1996. Soil Survey Laboratory Methods Manual. Soil Survey Investigations Report No. 42, Version 3.0. Natural Conservation Service, USDA.
Nelson, D. W., and L. E. Sommers. 1996. Total carbon, organic carbon, and organic matter. pp. 539-579. In: A. L. Page, R. H. Miller, and D. R. Keeney. Methods of Soil Analysis, Part II: Chemical and Microbiological Methods Properties. Am. Soc. Agron. Inc., Madison, WI.
Rumpel, C., and I. Kögel-Knabner. 2011. Deep soil organic matter-a key but poorly understood component of terrestrial C cycle. Plant Soil. 338: 143-158.
Six, J., K. Paustian, E. T. Elliott, and C. Combrink. 2000. Soil structure and organic matter: I. Distribution of aggregate-size classes and aggregate-associated carbon. Soil Sci. Soc. Am. J. 64: 681-689.
Soil Survey Staff. 2014. Keys to Soil Taxonomy. 12th edition. USDA–Natural Resources Conservation Service. Washington, DC. Sørensen, L. H. 1974. Rate of decomposition of organic matter in soil as influenced by repeated air drying-rewetting and repeated additions of organic material. Soil Biol. Biochem. 6: 287-292.
Veldkamp, E. 1994. Organic carbon turnover in three tropical soils under pasture after deforestation. Soil Sci. Soc. Am. J. 58: 175-180.
Zinn, Y. L., R. Lal, J. M. Bigham, and D. V. Resck. 2007. Edaphic controls on soil organic carbon retention in the Brazilian Cerrado: texture and mineralogy. Soil Sci. Soc. Am. J. 71: 1204-1214.