Labile forms of carbon and soil aggregatesšová E., Barančíková G., Gömöryová E., Makovníková J., Skalský R., Halas J., Koco Š., Tarasovičová Z., Takáč J., Špaňo M.: (2016): Labile forms of carbon and soil aggregates. Soil & Water Res., 11: 259-266.
download PDF
Soil organic matter (SOM) plays an important role in the soil aggregation and vice versa, its incorporation into the soil aggregates is one of the mechanisms of soil organic carbon stabilization. In this study the influence of labile carbon fractions on the fractions of dry-sieved (DSA) and wet-sieved (WSA) macro-aggregates and the relationship between the content of total organic carbon (TOC) and its labile fractions in the soil and in the fractions of macro-aggregates were determined. The experiment included six soil types (Eutric Fluvisol, Mollic Fluvisol, Haplic Chernozem, Haplic Luvisol, Eutric Cambisol, Rendzic Leptosol) in four ecosystems (forest, meadow, urban, and agro-ecosystem). In the case of DSA, the contents of labile fractions of carbon, in particular cold water extractable organic carbon (CWEOC) and hot water extractable organic carbon (HWEOC), had a higher impact on the proportions of larger fractions of macro-aggregates (3–7 mm), while in the case of WSA, the impact of labile fractions of carbon, mainly labile carbon (CL) oxidizable with KMnO4, was higher on the proportions of smaller fractions of aggregates (0.25–1 mm). The WSA size fraction of 0.5–1 mm seems an important indicator of changes in the ecosystems and its amounts were in a negative correlation with CL (r = –0.317; P < 0.05) and HWEOC (r = –0.356; P < 0.05). In the WSA and DSA size fractions 0.5–1 mm, the highest variability in the contents of TOC and CL was recorded in the forest ecosystem > meadow ecosystem > urban ecosystem > agro-ecosystem. The higher were the inputs of organic substances into the soil, the greater was the variability in their incorporation into the soil aggregates. The influence of the content of TOC and its labile forms on their contents in the DSA and WSA was different, and the contents of TOC and CL in the aggregates were more significantly affected by the CL content than by water soluble carbon. In the case of WSA fractions, their carbon content was more affected in the 1–2 mm than in 0.5–1 mm fraction.
Angers D. A., Giroux M. (1996): Recently Deposited Organic Matter in Soil Water-Stable Aggregates. Soil Science Society of America Journal, 60, 1547-
Barreto Renata C., Madari Beata E., Maddock John E.L., Machado Pedro L.O.A., Torres Eleno, Franchini Julio, Costa Adriana R. (2009): The impact of soil management on aggregation, carbon stabilization and carbon loss as CO2 in the surface layer of a Rhodic Ferralsol in Southern Brazil. Agriculture, Ecosystems & Environment, 132, 243-251
Bartlová Jaroslava, Badalíková B., Pospíšilová L., Pokorný E., Šarapatka B. (): Water stability of soil aggregates in different systems of tillage. Soil and Water Research, 10, 147-154
Biely A., Bezák V., Elečko M., Gross P., Kaličiak M., Koneč-ný V., Lexa J., Mello J., Nemčok J., Polák M.,Potfaj M., Rakús M., Vass D., Vozár J., Vozárová A. (2002): Initial landscape structure IV./1. Geological structure 1 : 500 000. In: Atlas of landscape of SR. Bratislava, Ministry of Environment. (in Slovak)
Bu Xiaoli, Ding Jiumin, Wang Limin, Yu Xingna, Huang Wei, Ruan Honghua (2011): Biodegradation and chemical characteristics of hot-water extractable organic matter from soils under four different vegetation types in the Wuyi Mountains, southeastern China. European Journal of Soil Biology, 47, 102-107
Conteh A., Blair G.T., Lefroy R.D.B., Whitbread A.M. (1999): Labile organic carbon determined by permanganate oxidation and its relationships to other measurements of soil organic carbon. Humic Substances Environmental Journal, 1: 3–15.
Denef K., Six J., Merckx R., Paustian K. (2002): Short-term effects of biological and physical forces on aggregate formation in soils with different clay mineralogy. Plant and Soil, 246: 185–200.
Emadi Mostafa, Baghernejad Majid, Memarian Hamid Reza (2009): Effect of land-use change on soil fertility characteristics within water-stable aggregates of two cultivated soils in northern Iran. Land Use Policy, 26, 452-457
Fernández-Romero M.L., Clark J.M., Collins C.D., Parras-Alcántara L., Lozano-García B. (2016): Evaluation of optical techniques for characterising soil organic matter quality in agricultural soils. Soil and Tillage Research, 155, 450-460
Ghani A, Dexter M, Perrott K.W (2003): Hot-water extractable carbon in soils: a sensitive measurement for determining impacts of fertilisation, grazing and cultivation. Soil Biology and Biochemistry, 35, 1231-1243
Korec P., Lauko V., Tolmáči L., Zubrický G., Mičietová E. (1997): Region and Districts of Slovakia. A New Administrative Structure. Bratislava, Q111. (in Slovak)
Loginov W., Wisniewski W., Gonet S.S., Ciescinska B. (1987): Fractionation of organic carbon based on susceptibility to oxidation. Polish Journal of Soil Science, 20: 47–52.
Martins Márcio R., Angers Denis A., Corá José E. (2013): Non-labile plant C contributes to long-lasting macroaggregation of an Oxisol. Soil Biology and Biochemistry, 58, 153-158
Orlov D.S., Grišina L.A. (1981): Chemical Analysis of Humus. Moskva, IMU: 272. (in Russian)
Ranjard Lionel, Richaume Agnès (2001): Quantitative and qualitative microscale distribution of bacteria in soil. Research in Microbiology, 152, 707-716
Sarkar D., Haldar A. (2005): Physical and Chemical Methods in Soil Analysis. Delhi, New Age International (P) Ltd.
Setia Raj, Rengasamy Pichu, Marschner Petra (2013): Effect of exchangeable cation concentration on sorption and desorption of dissolved organic carbon in saline soils. Science of The Total Environment, 465, 226-232
Silveira M.L., Comerford N.B., Reddy K.R., Cooper W.T., El-Rifai H. (2008): Characterization of soil organic carbon pools by acid hydrolysis. Geoderma, 144, 405-414
Six J, Elliott E.T, Paustian K (2000): Soil macroaggregate turnover and microaggregate formation: a mechanism for C sequestration under no-tillage agriculture. Soil Biology and Biochemistry, 32, 2099-2103
Six J., Conant R.T., Paul E.A., Panstian K. (2002): Stabilization mechanisms of soil organic matter: implications for C-saturation of soils. Plant and Soil, 241: 151–176.
Six J, Bossuyt H, Degryze S, Denef K (2004): A history of research on the link between (micro)aggregates, soil biota, and soil organic matter dynamics. Soil and Tillage Research, 79, 7-31
Sohi Saran P., Mahieu Nathalie, Arah Jonathan R. M., Powlson David S., Madari Beáta, Gaunt John L. (2001): A Procedure for Isolating Soil Organic Matter Fractions Suitable for Modeling. Soil Science Society of America Journal, 65, 1121-
Soil Survey Staff (2014): Kellogg Soil Survey Laboratory Methods Manual. Soil Survey Investigations. Lincoln, Natural Resources Conservation Service.
TISDALL J. M., OADES J. M. (1982): Organic matter and water-stable aggregates in soils. Journal of Soil Science, 33, 141-163
van Reeuwijk L.P. (2002): Procedures for Soil Analysis. Wageningen, International Soil Reference and Information Centre.
Verchot Louis V., Dutaur Laure, Shepherd Keith D., Albrecht Alain (2011): Organic matter stabilization in soil aggregates: Understanding the biogeochemical mechanisms that determine the fate of carbon inputs in soils. Geoderma, 161, 182-193
Wang Hao, Guan Dongsheng, Zhang Renduo, Chen Yujuan, Hu Yanting, Xiao Ling (2014): Soil aggregates and organic carbon affected by the land use change from rice paddy to vegetable field. Ecological Engineering, 70, 206-211
Wang Jun-guang, Yang Wei, Yu Bing, Li Zhao-xia, Cai Chong-fa, Ma Ren-ming (2016): Estimating the influence of related soil properties on macro- and micro-aggregate stability in ultisols of south-central China. CATENA, 137, 545-553
Whalen Joann K., Chang Chi (2002): Macroaggregate Characteristics in Cultivated Soils after 25 Annual Manure Applications. Soil Science Society of America Journal, 66, 1637-
WRB (2006): World reference base for soil resources 2006. World Soil Resources Reports No. 103. Rome, FAO.
XUE Sha, LI Peng, LIU Guo-bin, LI Zhan-bin, ZHANG Chao (2013): Changes in Soil Hot-Water Extractable C, N and P Fractions During Vegetative Restoration in Zhifanggou Watershed on the Loess Plateau. Journal of Integrative Agriculture, 12, 2250-2259
Yang Xueyun, Ren Weidong, Sun Benhua, Zhang Shulan (2012): Effects of contrasting soil management regimes on total and labile soil organic carbon fractions in a loess soil in China. Geoderma, 177-178, 49-56
Zsolnay Ádám (2003): Dissolved organic matter: artefacts, definitions, and functions. Geoderma, 113, 187-209
download PDF

© 2018 Czech Academy of Agricultural Sciences