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 AS  Vol.12 No.11 , November 2021
Quantitative Estimation of the Changes in Soil CEC after the Removal of Organic Matter and Iron Oxides
Abstract: The removal of organic matter and iron oxides could increase and decrease soil CEC in tropical and subtropical regions, but the quantitative information is insufficient so far about the change of soil CEC, the influence factors and their contribution. In this study, the subhorizon soils of 24 soil series in the tropical and subtropical China were used, pH, particle size composition, organic matter, iron oxides of these samples were measured, and also CECs were measured and compared for the original soils and after the removal of organic matter and iron oxides. The results showed that, compared with CEC of the original soil, the eliminating organic matter increased soil CEC significantly by 2.28% - 56.50% with a mean of 24.02%, but the further obliterating iron oxides decreased soil CEC significantly by 0.75% - 20.30% with a mean of 7.73%. CEC after the removal of organic matter and iron oxides had positive correlation with iron oxides (p < 0.01) and negative correlation with sand content (p < 0.01 and p < 0.05). CEC after organic matter eliminated was mainly decided by iron oxides (51.68%), followed by silt content (22.19%); while CEC after iron oxides obliterated was mainly determined by iron oxides (50.55%). The increase of CEC after organic matter eliminated was co-affected by the contents of clays, slits, iron oxides and pH (22.00% - 27.34%), while the decrease of CEC after iron oxides obliterated further was dominated by the content of organic matter (66.92%). More other soil parameters should be considered for higher predicting accuracy in the regression model of soil CEC after the removal of organic matter and iron oxides, and the recommended optimal models obtained in this study were as follows: for soil CEC after organic matter eliminated, CEC = 1.665 &#8722; 0.546pH &#8722; 0.024OM + 0.053FexOy &#8722; 0.001Silt + 0.007Clay + 0.972CECoriginal (R2 was 0.923, RSME was 1.55 cmol(+)&#8729;kg&#8722;1, p < 0.01), while for soil CEC after iron oxides further obliterated, CEC = 1.665 &#8722; 0.546pH &#8722; 0.024OM + 0.053FexOy &#8722; 0.001Silt + 0.007Clay + 0.972CECoriginal (R2 was 0.923, RMSE was 1.55 cmol(+)&#8729;kg&#8722;1, p < 0.01). Further research is needed in the future as for exploring internal functional mechanism in view of soil electrochemistry and mineralogy.
Cite this paper: Kong, X. , Li, D. , Song, X. and Zhang, G. (2021) Quantitative Estimation of the Changes in Soil CEC after the Removal of Organic Matter and Iron Oxides. Agricultural Sciences, 12, 1244-1254. doi: 10.4236/as.2021.1211079.
References

[1]   Mattson, S. (1931) The Laws of Soil Colloidal Behavior: VI. Amphoteric Behavior. Soil Science, 32,343-366.
https://doi.org/10.1097/00010694-193111000-00002

[2]   Yu, T.R. (1981) Variable Charge Soil. Chinese Journal of Soil Science, No. 5, 40-45.

[3]   Chassé, A.W. and Ohno, T. (2016) Higher Molecular Mass Organic Matter Molecules Compete with Orthophosphate for Adsorption to Iron (Oxy)hydroxide. Environmental Science & Technology, 50, 7641-7649.
https://doi.org/10.1021/acs.est.6b01582

[4]   Saidy, A.R., Smernik, R.J., Baldock, J. A., et al. (2013) The Sorption of Organic Carbon onto Differing Clay Minerals in the Presence and Absence of Hydrous Iron Oxide. Geoderma, 209, 15-21.
https://doi.org/10.1016/j.geoderma.2013.05.026

[5]   Oren, A. and Chefetz, B. (2012) Sorptive and Desorptive Fractionation of Dissolved Organic Matter by Mineral Soil Matrices. Journal of Environmental Quality, 41, 526-533.
https://doi.org/10.2134/jeq2011.0362

[6]   Mayes, M.A., Heal, K.R., Brandt, C.C., et al. (2012) Relation between Soil Order and Sorption of Dissolved Organic Carbon in Temperate Subsoils. Soil Science Society of America Journal, 76, 1027-1037.
https://doi.org/10.2136/sssaj2011.0340

[7]   Huang, C.Y. (2000) Pedology. China Agriculture Press, Beijing.

[8]   Zhang, Z.Y. (2016) Composition and Evaluation Characteristics of Clay Minerals in Several Horizontal Zonality Soil Particles. Huazhong Agricultural University, Wuhan.

[9]   Wang, T.W. and Chen, J.Y. (2020) Soil Series of China (Jiangxi Volume). Science Press, Beijing.

[10]   Huang, B. and Lu, S.G. (2020) Soil Series of China (Yunnan Volume). Science Press, Beijing.

[11]   Yuan, D.G. (2020) Soil Series of China (Sichuan Volume). Science Press, Beijing.

[12]   Zhang, M.K. and Ma, W.C. (2017) Soil Series of China (Fujian Volume). Science Press, Beijing.

[13]   Lu, Y. (2017) Soil Series of China (Guangdong Volume). Science Press, Beijing.

[14]   Ma, W.C. and Zhang, M.K. (2017) Soil Series of China (Zhejiang Volume). Science Press, Beijing.

[15]   Qi, Z.P., Wang, D.F. and Wei, Z.Y. (2018) Soil Series of China (Hainan Volume). Science Press, Beijing.

[16]   Zhang, G.L. and Gong, Z.T. (2012) Soil Survey Laboratory Methods. Science Press, Beijing.

[17]   Bao, S.D. (2000) Analysis for Soil and Agro-Chemistry. 3rd Edition, China Agriculture Press, Beijing.

[18]   Krogh, L.H., Breuning, M. and Greve, H.M. (2000) Cation-Exchange Capacity Pedotransfer Functions for Danish Soils. Acta Agriculturae Scandinavica Section B—Soil and Plant Science, 50, 1-12.
https://doi.org/10.1080/090647100750014358

[19]   Meghdadi, A. and Javar, N. (2018) Evaluation of Nitrate Sources and the Percent Contribution of Bacterial Denitrification in Hyporheic Zone Using Isotope Fractionation Technique and Multi-Linear Regression Analysis. Journal of Environmental Management, 222, 54-65.
https://doi.org/10.1016/j.jenvman.2018.05.022

[20]   Zhang, G., Liu, X., Lu, S., et al. (2020) Occurrence of Typical Antibiotics in Nansi Lake’s Inflowing Rivers and Antibiotic Source Contribution to Nansi Lake Based on Principal Component Analysis-Multiple Linear Regression Model. Chemosphere 242, Article ID: 125269.
https://doi.org/10.1016/j.chemosphere.2019.125269

[21]   Xiong, Y. and Li, Q.K. (1990) Soils of China. 2nd Edition, Science Press, Beijing.

[22]   Liao, K., Xu, S. and Zhu, Q. (2015) Development of Ensemble Pedotransfer Functions for Cation Exchange Capacity of Soils of Qingdao in China. Soil Use and Management, 31, 483-490.
https://doi.org/10.1111/sum.12207

[23]   Seybold, C.A., Grossman, R.B. and Reinsch, T.G. (2005) Predicting Cation Exchange Capacity for Soil Survey Using Linear Models. Soil Science Society of America Journal, 69, 856-863.
https://doi.org/10.2136/sssaj2004.0026

[24]   Oorts, K., Vanlauwe, B. and Merckx, R. (2003) Cation Exchange Capacities of Soil Organic Matter Fractions in a Ferric Lixisol with Different Organic Matter Inputs. Agriculture, Ecosystems & Environment, 100, 161-171.
https://doi.org/10.1016/S0167-8809(03)00190-7

[25]   Meyer, W.L., Marsh, M. and Arp, P.A. (1994) Cation Exchange Capacities of Upland Soils in Eastern Canada. Canadian Journal of Soil Science, 74, 393-408.
https://doi.org/10.4141/cjss94-053

[26]   Zhao, J.H., Xu, B.Y., Zhao, J.J., et al. (2019) Distribution Characteristics of Soil Cation Exchange Capacity in Haxi Forest of Qilian Mountains, Gansu Province. Forest Science and Technology, No. 6, 41-43.

[27]   Shekofteh, H., Ramazani, F. and Shirani, H. (2017) Optimal Feature Selection for Predicting Soil CEC: Comparing the Hybrid of Ant Colony Organization Algorithm and Adaptive Network-Based Fuzzy System with Multiple Linear Regression. Geoderma, 298, 27-34.
https://doi.org/10.1016/j.geoderma.2017.03.010

[28]   Zhang, Q., Fang, H.L., Huang, Y.Z., et al. (2005) Application of Soil CEC to Evaluation of Soil Quality in Shanghai. Soils, 37, 679-682.

[29]   Li, Y., Hao, Z.K., Shi, Q., et al. (2020) Distribution Characteristics of Soil pH, Cation Exchange Capacity and Organic Matter in the Area of Western Heilongjiang Province. Protection Forest Science and Technology, No. 4, 20-22.

[30]   Khodaverdiloo, H., Momtaz, H. and Liao, K.H. (2018) Performance of Soil Cation Exchange Capacity Pedotransfer Function as Affected by the Inputs and Database Size. Clean-Soil Air Water, 46, Article ID: 1700670.
https://doi.org/10.1002/clen.201700670

[31]   Seyedmohammadi, J. and Matinfar, H.R. (2018) Statistical and Geostatistical Techniques for Geospatial Modeling of Soil Cation Exchange Capacity. Communications in Soil Science and Plant Analysis, 49, 2301-2314.
https://doi.org/10.1080/00103624.2018.1499765

[32]   Manrique, L.A., Jones, C.A. and Dyke, P.T. (1991) Predicting Cation-Exchange Capacity from Soil Physical and Chemical Properties. Soil Science Society of America Journal, 55, 787-794.
https://doi.org/10.2136/sssaj1991.03615995005500030026x

[33]   Obalum, S.E., Watanabe, Y., Igwe, C.A., et al. (2013) Improving on the Prediction of Cation Exchange Capacity for Highly Weathered and Structurally Contrasting Tropical Soils from Their Fine-Earth Fractions. Communications in Soil Science and Plant Analysis, 44, 1831-1848.
https://doi.org/10.1080/00103624.2013.790401

[34]   Rahal, N.S. and Alhumairi, B.A.J. (2019) Modelling of Soil Cation Exchange Capacity for Some Soils of East Gharaf Lands from Mid-Mesopotamian Plain (Wasit Province/Iraq). International Journal of Environmental Science and Technology, 16, 3183-3192.
https://doi.org/10.1007/s13762-018-1913-6

[35]   Khaledian, Y., Brevik, E.C., Pereira, P., et al. (2017). Modeling Soil Cation Exchange Capacity in Multiple Countries. CATENA, 158, 194-200.
https://doi.org/10.1016/j.catena.2017.07.002

[36]   Hu, G.C. and Zhang, M.K. (2002) Mineralogical Evidence for Strong Cementation of Soil Particles by Iron Oxides. Chinese Journal of Soil Science, 33, 25-27.

[37]   Martín-García, J.M., Sánchez-Marañón, M., Calero, J., et al. (2016) Iron Oxides and Rare Earth Elements in the Clay Fractions of a Soil Chronosequence in Southern Spain. European Journal of Soil Science, 67, 749-762.
https://doi.org/10.1111/ejss.12377

[38]   Silva, L.S., Júnior, J.M., Barrón, V., et al. (2020). Spatial Variability of Iron Oxides in Soils from Brazilian Sandstone and Basalt. CATENA, 185, Article ID: 104258.
https://doi.org/10.1016/j.catena.2019.104258

[39]   Soares, M.R. and Alleoni, L.R.F. (2008) Contribution of Soil Organic Carbon to the Ion Exchange Capacity of Tropical Soils. Journal of Sustainable Agriculture, 32, 439-462.
https://doi.org/10.1080/10440040802257348

[40]   Zhang, M.K. and Zhu, Z.X. (1993) Effect of Slits on Cation Exchange Capacity of Soils. Soils and Fertilizers, 4, 41-43.

 
 
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