Abstract
This study was conducted in Xinkou Experimental Forestry Farm of Fujian Agricultural and Forestry University, Sanming, Fujian Province in January 1999. Taking pure stand of Chinese fir as control, the authors measured and studied the content of organic carbon, content of humic acid (HA), ratio of HA of fulvic acid (FA), and the characteristics of infrared light spectrum and visible light spectrum of soil humus in the mixed forest of Chinese fir and Tsoong’tree. Compared to humus composition in the pure stand of Chinese fir, the content of soil organic C, HA content, and the E4 value of HA for different layers of soil, except for the ratio of HA to FA, showed a significant increase in the mixed forest, while the ratios of E4 to E6 had a little decrease. The infrared light spectrum of humic acid had an absorptive peak at 1650 cm−1. It is concluded that the levels of humification and aromaticity of soil humus are higher in the mixed forest, which is favorable for the improvement of soil structure and nutrient supply, thus improving the soil fertility to a certain degree.
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Angers, D.A. and Mehuys, G.R. 1989. Effects of cropping on carbohydrate content and water stable aggregation of a clay soil [J]. Can. J. Soil Sci.,69: 373–380.
Berg, B., Ekbohm, G., Johansson, M.B.,et al. 1996. Maximum decomposition limits of forest litter types: a synthesis [J]. Can. J. Bot.,74: 659–672.
Chen, Y., Senesi, N. and Schnitzer, M. 1977. Information provided on humic substances by E4/E6 ratio [J]. Soil Sci. Soc. Am. J.,41: 352–358.
Gregorich, E.G., Carter, M.R., Angers, D.A.,et al. 1994. Towards a minimum data set to assess soil organic matter quality in agricultural soils [J]. Can. J. Soil Sci.,74: 367–385.
Kononoba, M.M. 1966. Analytical Methods: Quality and Character [M]. Beijing: Science Publishing House.
Liu Changhuai and Luo Ruying. 1990. Chemical characteristics of humus in forest soils of Nanjing-Zhenjiang Hills [J]. Journal of Nanjing Forestry University,14 (1): 1–6.
Sun Duo. 1996. A biological way to prevent site degradation of Chinese fir plantation-residue management cultivation [D]. Ph. D. Dissertation, Nanjing Forestry University, p42.
Takacs, M. and Alberts, J.J. 1999. Changes in chemical composition, FTIR and fluorescence spectral characteristics of humic acids in peat profiles [J]. Spec. Publ.-R. Soc. Chem.,247: 169–177.
Tisdall, J.M. and Oades, J.M. 1982. Organic matter and water-stable aggregates in soils [J]. J. Soil Sci.,33: 141–163.
Xiong Yi and Li Qingkui. 1990. Soils in China [M]. Beijing: Science Publishing House, p 390–394.
Yang Yusheng, He Zhongming, Yu Xintuo,et al. 1997. The effect on the controlled burning to the soil humus and fertility in different forest stands [J]. Scientia Silvae Sinicae,33 (Supplement 1): 31–38.
Yang Yusheng. 1998. Sustainable Management of Chinese Fir Forest [M]. Beijing: China Forestry Publishing House, p 209–220.
Yang Yusheng, Qiu Rrenhui and Yu Xinhuo. 1999. Study on soil humus and fertility characteristics in 29-year-old plantations of Chinese fir of different rotations [J]. Scientia Silvae Sinicae,35 (3): 116–119.
Yang Yusheng, Yang Lunzheng and Yu Xintuo. 1996. Changes in composition and properties of soil humus following replacement of broad-leaved forest by Chinese Fir plantation [J]. Journal of Fujian College of Forestry,16(2): 101–104.
Yu Tianren. 1987. Chemical Principle of Soil [M]. Beijing: Science Publishing House, p 110–115.
Yu Xintuo. 1996. Silviculture of Chinese fir [M]. Fuzhou: Fujian Science and Technology Publishing House, p 311–313.
Zheng Yushan and Ding Yingxiang. 1998. Effect of mixed forest of Chinese fir and Tsoong’ tree on soil properties [J]. Pedosphere,8(2): 161–168.
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Foundation item: This paper was supported by Natural Science Foundation of Fujian Province (B0110025) and Foundation for University Key Teacher by the Ministry of Education.
Biography: YANG Yu-sheng (1964-). male, professor in Fujian Agricultural and Forestry University, Nanping 353001, P. R. China.
Responsible editor: Zhu Hong
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Yu-sheng, Y., Jian-fen, G., Yan-li, L. et al. Composition and properties of soil humus in a mixed forest ofCunninghamia lanceolata andTsoongiodendron odorum . Journal of Forestry Research 13, 33–36 (2002). https://doi.org/10.1007/BF02857142
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DOI: https://doi.org/10.1007/BF02857142