ASSESSEMENT OF THE BASELINE DISTRIBUTION OF ORGANIC CARBON IN SOILS OF ESAN SOUTH EAST LOCAL GOVERNMENT AREA OF EDO STATE, SOUTHERN NIGERIA
DOI:
https://doi.org/10.5281/zenodo.19383245Keywords:
Forms, spatial distribution, labile organic carbon fraction, recalcitrant organic carbon fractionAbstract
The knowledge of spatial distribution of soil organic carbon is an important requirement for understanding the role of soils in the global carbon system. In this study, soil samples were obtained from the land of different uses in Esan South East Local Government Area, Edo State, South-South Nigeria, in order to determine the forms and spatial distribution of organic carbon content of the soils. The soils were collected from 0 – 15cm (topsoil) and 15 – 30cm (subsoil) depths. The soil samples were physically fractionated into labile organic carbon fraction and recalcitrant organic carbon fraction following standard methods. Selected physiochemical properties of the soils were also determined and the results obtained were subjected to statistical analyses. The result showed that the labile organic carbon fraction accounted for 15 percent of the total organic carbons while the recalcitrant organic carbon fraction accounted for 85 percent indicating that the recalcitrant organic carbon fraction is of a greater proportion than the labile organic carbon fraction. These fractions were found to be decreasing also with the depth. The soil organic carbon is also low. The study also shows that the different land uses contributed to the relatively low levels labile organic carbon in the soil hence appropriate crop and soil management practices are required in maintaining or improving the organic carbon status of the soil.
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References
Akinyede F.919860: Potassium dynamics in selected soils in Nigeria. A PhD thesis submitted to the department Agronomy, University of Ibadan. p230.
Bouyoucos, G.S. (1962): Hydrometer method improved form a king particle size analysis of soils. Agron.J., 54, 464–465.
Breulmann, M. (2011): Functional soil organic matter pools and soil organic carbon stocks in grass lands-An ecosystem perspective [Dissertation]: Helmholtz Centre for Environmental Research UFZ.
Camberdella, C.A; Elliott E.T.(1992): Particulate soil organic-matter changes across grassland cultivation sequence. Soil Sci. Soc Am J. 56(3):777–783.
FAO and ITPS. (2015). Status of the World’s Soil Resources, Rome: s.n.
IPCC.2014: Climate Change (2014): Synthesis, Report Contribution of Working Groups I, II and III to the Fifth Assessment Report of the Intergovernmental Panel on Climate Change. Geneva: IPCC.
Lal, R; Lorenz, K; Hüttl, R; Schneider, B. U; von Braun, J.(Eds.) (2013): Ecosystem Services & Carbon Sequestration in the Biosphere. Springer, Dordrecht, The Netherlands, pp 464.
Lehmann, J; Kleber, M. (2015).The contentious nature of soil organic matter. Nature, 528(7580): 60-68.
Nanthi, B. Ravi, N. and Russ T. (2000): Surface charge and solute interaction in soils. Advances in Agronomy p105.
Nelson, D.W. and Simmer, L.E. (1982): Total carbon, organic carbon and organic matter. In method of soil analysis. Part 2. Page, A.L; Mille, R.H. and Kecney D.R (Ed), American society of Agronomy Madison WI. PP 539-579.
Olens S.R and Somners R.E. (1996): Phosphorus page A.L, R.H, and Keeney, (eds) methods of analysis Part xz, American Society of Agronomy, Madison W.L pp403- 430.
O’Rourke, S. M; Angers, D. A; Holden, N. M; Mcbratney, A. B. (2015): Soil organic carbon across scales. Global Change Biology, 21: 3561–3574.
Raji B.A; Esu, I.E. and Chide, V.O. (1999): Pedological studies/characterization of Sokoto sand Dune soils. North. West Nigeria Journal of Arid Agriculture, p47-59.
Thomas, G.W. (1982): Exchangeable cations. In Methods of Soil Analysis, part 2, Page AL, Miller RH and Keeney DR ed. Am. Soc. Agronomy, 2e edition, 9 (2),159–165.
Thomas, G.W. (1996): Soil acidity, In; Methods of soil analysis, part, 3. Chemical methods, L.D. Sparks, (Ed). Soil science society of America book seriesp;159-165.
Scharlemann, J. P; Tanner, E. V; Hiederer, R; Valerie, K. (2014): Global Soil Carbon: understanding and managing the largest terrestrial carbon pool. Carbon Management, 5(1): 81-91.
Stevenson, F.J. (1982): “Humus Chemistry.” John Wiley & Sons, New York.
Tan, K.H. (2003): Chemical composition of Humic Matter. In Humic matter in soil and environment principles and controversies. Tan, K.H. Ed. Marcel Dekker. New York:12-186.
Wahua T.A.T (1999): Applied statistics for scientific studies. Afrika-Link Books Aba, Nigeria.
Walkley A; Black I.A.(1934): An examination of the Degtjareff method for determining soil organic matter, and a proposed modification of the chromic acid titration method. Soil Sci. 37(1):29–38.
Wilding L.P; Bouma J. and Boss D.W. (1994): Impact of spatial variability on interpretative modeling. In: Quantitative modeling of soil forming processes. Bryant, R.B. and Amold, R.W. SSSA Special publication, No. 39: 61.
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