Moisture effect on soil humus characteristics in a laboratory incubation experiment C., Gao S., Zhang J., Zhao L., Wang L. (2016): Moisture effect on soil humus characteristics in a laboratory incubation experiment. Soil & Water Res., 11: 37-43.
download PDF
A 180-day laboratory incubation experiment (30°C) was conducted to investigate the quantitative and qualitative characteristics of humic fractions in a Mollisol at different moisture conditions. The soil moisture contents were 30, 60, and 250% field water-holding capacity (WHC), which represented the low, middle, and high moisture levels, respectively. The results showed that the carbon contents of the total soil and corresponding humic fractions generally decreased with increasing soil moisture. A significant difference was observed between the 250% WHC and the two other moisture levels. By contrast, the carbon content of the water soluble fraction significantly increased with increasing soil moisture levels. The solid-state 13C nuclear magnetic resonance (NMR) spectra showed that the alkyl C/O-alkyl C, aliphatic C/aromatic C, and hydrophobic C/hydrophilic C ratios were in the order of 250% WHC > 30% WHC ≈ 60% WHC, 30% WHC ≈ 60% WHC > 250% WHC and 250% WHC > 60% WHC ≈ 30% WHC for humic acid, and 250% WHC > 30% WHC ≈ 60% WHC, 60% WHC ≈ 250 % WHC > 30% WHC and 30% WHC ≈ 250% WHC > 60% WHC for humin, respectively. These results indicated that a high moisture level was unfavourable for the carbon accumulation of the total soil and humic fractions, whereas it was favourable for the accumulation of water soluble carbon. Although soil moisture levels had a distinct effect on the chemical composition of humic acid and humin, the decomposition degree of the two humic substances components, as indicated by the alkyl C/O-alkyl C ratio, were both higher at a high moisture level than at a low moisture level. Therefore, the lower soil organic carbon content at a high moisture level than at a low moisture level can be ascribed to the higher water soluble carbon content and larger decomposition degree of humic acid and humin in the former. Our results are important for understanding the behaviour and mechanisms of humic substances at specific soil moisture conditions.
Brockett Beth F.T., Prescott Cindy E., Grayston Sue J. (2012): Soil moisture is the major factor influencing microbial community structure and enzyme activities across seven biogeoclimatic zones in western Canada. Soil Biology and Biochemistry, 44, 9-20
Chavez-Vergara Bruno, Merino Agustín, Vázquez-Marrufo Gerardo, García-Oliva Felipe (2014): Organic matter dynamics and microbial activity during decomposition of forest floor under two native neotropical oak species in a temperate deciduous forest in Mexico. Geoderma, 235-236, 133-145
Chen Diyun, Xing Baoshan, Xie Wenbiao (2007): Sorption of phenanthrene, naphthalene and o-xylene by soil organic matter fractions. Geoderma, 139, 329-335
CHEN Lin, ZHANG Jia-Bao, ZHAO Bing-Zi, XIN Xiu-Li, ZHOU Gui-Xiang, TAN Jin-Fang, ZHAO Jin-Hua (2014): Carbon Mineralization and Microbial Attributes in Straw-Amended Soils as Affected by Moisture Levels. Pedosphere, 24, 167-177
Dai X.Y., Ping C.L., Candler R., Haumaier L., Zech W. (2001): Characterization of Soil Organic Matter Fractions of Tundra Soils in Arctic Alaska by Carbon-13 Nuclear Magnetic Resonance Spectroscopy. Soil Science Society of America Journal, 65, 87-
Fernandes Andreia Neves, Giovanela Marcelo, Esteves Valdemar Inocêncio, Sierra Maria Marta de Souza (2010): Elemental and spectral properties of peat and soil samples and their respective humic substances. Journal of Molecular Structure, 971, 33-38
Glaser Bruno, Amelung Wulf (2003): Pyrogenic carbon in native grassland soils along a climosequence in North America. Global Biogeochemical Cycles, 17, n/a-n/a
Guo Jianfen, Yang Yusheng, Chen Guangshui, Xie Jinsheng, Yang Zhijie (2014): Carbon mineralization of Chinese fir (Cunninghamia lanceolata) soils under different temperature and humidity conditions. Acta Ecologica Sinica, 34, 66-71
HAO Rui-jun, LI Zhong-pei, CHE Yu-ping (2011): Differences in Organic C Mineralization Between Aerobic and Submerged Conditions in Paddy Soils of Southern Jiangsu Province, China. Agricultural Sciences in China, 10, 1410-1418
Hossain M. B., Puteh A. B. (2013): Emission of Carbon Dioxide Influenced by Different Water Levels from Soil Incubated Organic Residues. The Scientific World Journal, 2013, 1-8
Ikeya Kosuke, Yamamoto Shuichi, Watanabe Akira (2004): Semiquantitative GC/MS analysis of thermochemolysis products of soil humic acids with various degrees of humification. Organic Geochemistry, 35, 583-594
Iqbal Javed, Hu Ronggui, Lin Shan, Ahamadou Bocar, Feng Minglei (2009): Carbon dioxide emissions from Ultisol under different land uses in mid–subtropical China. Geoderma, 152, 63-73
Li C., Wang S., Ji F., Zhang J., Wang L. (2015): Thermodynamics of Cu2+ adsorption on soil humin. International Journal of Environmental Research, 9: 43–52.
Liu X., Zhang X., Wang Y., Sui Y., Zhang S., Herbert S.J., Ding G. (2010): Soil degradation: a problem threatening the sustainable development of agriculture in Northeast China. Plant, Soil and Environment, 56: 87–97.
Liu Xiaobing, Lee Burras Charles, Kravchenko Yuri S., Duran Artigas, Huffman Ted, Morras Hector, Studdert Guillermo, Zhang Xingyi, Cruse Richard M., Yuan Xiaohui (2012): Overview of Mollisols in the world: Distribution, land use and management. Canadian Journal of Soil Science, 92, 383-402
Lofferdo E., Senesi N. (2006): The role of humic substances in the fate of anthropogenic organic pollutants in soil with emphasisi on endocring disruptor compounds. In: Twardowska I., Allen H.E., Häggblom M.M., Stefaniak S. (eds): Soil and Water Pollution Monitoring, Protection and Remediation. Dordrecht, Springer.
Lu Y., Xu H. (2014): Main affecting factors of soil carbon mineralization in lake wetland. Polish Journal of Environmental Studies, 23: 1255–1262.
Luo Lei, Zhang Shuzhen, Ma Yibing (2008): Evaluation of impacts of soil fractions on phenanthrene sorption. Chemosphere, 72, 891-896
Nierop Klaas G.J, Buurman Peter, de Leeuw Jan W (1999): Effect of vegetation on chemical composition of H horizons in incipient podzols as characterized by NMR and pyrolysis-GC/MS. Geoderma, 90, 111-129
Panettieri M., Knicker H., Murillo J.M., Madejón E., Hatcher P.G. (2014): Soil organic matter degradation in an agricultural chronosequence under different tillage regimes evaluated by organic matter pools, enzymatic activities and CPMAS ¹³C NMR. Soil Biology and Biochemistry, 78, 170-181
Paul E.A. (2014): Soil Microbiology, Ecology and Biochemistry. 4th Ed. Burlington, Academic Press.
Simpson André J., McNally David J., Simpson Myrna J. (2011): NMR spectroscopy in environmental research: From molecular interactions to global processes. Progress in Nuclear Magnetic Resonance Spectroscopy, 58, 97-175
Smith V.R. (2005): Moisture, carbon and inorganic nutrient controls of soil respiration at a sub-Antarctic island. Soil Biology and Biochemistry, 37, 81-91
Song Guixue, Hayes Michael H. B., Novotny Etelvino H., Simpson Andre J. (2011): Isolation and fractionation of soil humin using alkaline urea and dimethylsulphoxide plus sulphuric acid. Naturwissenschaften, 98, 7-13
Spaccini R (2002): Increased soil organic carbon sequestration through hydrophobic protection by humic substances. Soil Biology and Biochemistry, 34, 1839-1851
Straathof Angela L., Chincarini Riccardo, Comans Rob N.J., Hoffland Ellis (2014): Dynamics of soil dissolved organic carbon pools reveal both hydrophobic and hydrophilic compounds sustain microbial respiration. Soil Biology and Biochemistry, 79, 109-116
Stres Blaž, Danevčič TjaÅ¡a, Pal Levin, Fuka Mirna Mrkonjić, Resman Lara, Leskovec Simona, Hacin Janez, Stopar David, Mahne Ivan, Mandic-Mulec Ines (2008): Influence of temperature and soil water content on bacterial, archaeal and denitrifying microbial communities in drained fen grassland soil microcosms. FEMS Microbiology Ecology, 66, 110-122
Tardy Y., Schaul R., DuplaY J. (1997): Thermodynamic stability fields of humus, microflora and plants. Comptes Rendus de l’Académie des Sciences-Series IIA-Earth and Planetary Science, 324: 969–976.
Zech Wolfgang, Senesi Nicola, Guggenberger Georg, Kaiser Klaus, Lehmann Johannes, Miano Teodoro M., Miltner Anja, Schroth Götz (1997): Factors controlling humification and mineralization of soil organic matter in the tropics. Geoderma, 79, 117-161
Zhang J. J., Dou S., Song X. Y. (2009): Effect of long-term combined nitrogen and phosphorus fertilizer application on 13 C CPMAS NMR spectra of humin in a Typic Hapludoll of northeast China. European Journal of Soil Science, 60, 966-973
Zhang J., Wang L., Li C. (2010): Humus characteristics after maize residues degradation in soil amended with different copper concentrations. Plant, Soil and Environment, 56: 120–124.
Zhang Jinjing, Hu Feng, Li Huixin, Gao Qiang, Song Xiangyun, Ke Xiaokang, Wang Lichun (2011): Effects of earthworm activity on humus composition and humic acid characteristics of soil in a maize residue amended rice–wheat rotation agroecosystem. Applied Soil Ecology, 51, 1-8
Zhang Jinjing, Wang Shuai, Wang Qinghe, Wang Nan, Li Cuilan, Wang Lichun (2013): First determination of Cu adsorption on soil humin. Environmental Chemistry Letters, 11, 41-46
download PDF

© 2022 Czech Academy of Agricultural Sciences | Prohlášení o přístupnosti