[1] Zhang, G.L. and Gong, Z.T., Eds. (2012) Soil Survey Laboratory Methods. Science Press, Beijing. (In Chinese)
[2] Soil Survey Staff (2010) Keys to Soil Taxonomy. 11th Edition, USDA, Washington DC.
[3] Cooperative Research Group on Chinese Soil Taxonomy (2001) Chinese Soil Taxonomy. Science Press, Beijing & New York.
[4] Lin, Y.X. and Yu, T.R. (1958) Relationship between Acidity with Exchangeable H+ and Al3+. Acta Pedologica Sinica, 5, 234-246. (in Chinese)
[5] Kong, X. L. and Ji, G.L. (1992) Relationship between Acidity with Exchangeable H+ and Al3+ of Soils in South Chinese. Chinese Journal of Soil Science, 23, 203-204. (In Chinese)
[6] Fan, Q.F., Zhang, Y.L., Chen, Z., et al. (2009) Acidity Characteristics and Acidification Mechanism of Soils in Protected Fields. Acta Pedologica Sinica, 46, 466-471. (In Chinese)
[7] Deng, X.H., Li, Y.H., Zhou, M.L., et al. (2018) Acidity Characteristics and Influencing Factors of Tobacco-Planting Soils in Wuling Mountains—A Case Study in Xiangxi Autonomic Prefectural, Hunan Province. Journal of Soil and Water Conservation, 32, 304-309. (In Chinese)
[8] Wu, Z.D., Jiang, F.Y., You, Z.M., et al. (2016) Acidic Characteristics of Subtropical Tea Garden Soil: A Case Study in Wuyishan City, Fujian Province, Southeast China. China Environmental Science, 36, 181-189. (In Chinese)
[9] Sun, H.D., Liu, B., Wu, B.S., et al. (2016) Characteristics and Causes of Soil Acidification in the Rubber Plantation. Journal of Northwest Forestry University, 31, 49-54. (In Chinese)
[10] Xiong, Y. and Li, Q.K. (1990) Soil of China. 2nd Edition, Science Press, Beijing. (In Chinese)
[11] Huang, C.Y. (2000) Soil Science. China Agriculture Press, Beijing. (In Chinese)
[12] Yu, J.Y. and He, X.X. (2006) Data Statistical Analysis and SPSS Application. Posts & Telecommunications Press, Beijing. (In Chinese)
[13] Krug, E.C. and Frink, C.R. (1983) Acid Rain on Acid Soil—A New Perspective. Science, 221, 520-525.
https://doi.org/10.1126/science.221.4610.520
[14] van Breemen, N., Driscoll, C.T. and Mulder, J. (1984) Acidic Deposition and Internal Proton Sources in Acidification of Soils and Waters. Nature, 307, 599-604.
[15] Ulrich, B. and Sumner, M. E. (1991) Soil Acidity. Springer-Verlag, Berlin.
https://doi.org/10.1007/978-3-642-74442-6
[16] Xu, R.K., Coventry, D.R., Farhoodi, A., et al. (2002) Soil Acidification as Influenced by Crop Rotations, Stubble Management, and Application of Nitrogenous Fertiliser, Tarlee, South Australia. Australian Journal of Soil Research, 40, 483-496.
https://doi.org/10.1071/SR00104
[17] Schroder, J.L., Zhang, H.L., Girma, K., et al. (2011) Soil Acidification from Long-Term Use of Nitrogen Fertilizers on Winter Wheat. Soil Science Society of America Journal, 75, 957-964.
https://doi.org/10.2136/sssaj2010.0187
[18] Guo, J.H., Liu, X.J., Zhang, Y., et al. (2010) Significant Acidification in Major Chinese Croplands. Science, 327, 1008-1010.
https://doi.org/10.1126/science.1182570
[19] Xu, R.K. (2015) Research Progresses in Soil Acidification and Its Control. Soils, 47, 238-244. (In Chinese)
[20] Reuss, J.O. and Johnson, D.W. (1986) Acid Deposition and the Acidification of Soils and Waters. Springer-Verlag, Berlin.
https://doi.org/10.1007/978-1-4419-8536-1
[21] Huang, P.M. (1997) Mechanism of Soil Acidification. In: Dahama, A.K., Ed., Agro’s Ann. Rev. of Crop Ecology, Agro Botanica, Bikaner, 79-100.
[22] Yu, T.R. (1997) Chemistry of Variable Charge Soils. Oxford University Press, New York.