References
- Andreetta, A., Macci, C., Giansoldati, V., Masciandaro, G., Carnicelli, S. 2013. Microbial activity and organic matter composition in Mediterranean humus forms. - Geoderma, 209, 198-208.
- Bao, S.D. 2000. Soil Agricultural Chemistry Analysis. Beijing, Chinese Agriculture Press.
- Berg, B., McClaugherty, C. 2008. Plant Litter: Springer Berlin Heidelberg.
- Dang, Y.A., Li, S.Q., Wang, G.D. 2012. Distribution characteristics of humus fraction in soil profi le for the typical regions in the Loess Plateau. - Acta Ecologica Sinica, 32, 1820-1829.
- Descheemaeker, K., Muys, B., Nyssen, J., Sauwens, W., Haile, M., Poesen, J., Raes, D., Deckers, J. 2009. Humus Form Development during Forest Restoration in Exclosures of the Tigray Highlands, Northern Ethiopia. - Restoration Ecology, 17, 280-289.
- Dou, S. 2008. Review of formation and transformation of soil humic substance and its microbiologic mechanism. - Journal of Jilin Agricultural University, 30, 538-547.
- Dou, S., Wang, S. 2011. Review of different microorganisms effect on humus formation. - Journal of Jilin Agricultural University, 33, 119-125.
- Guan, S., Dou, S. 2006. Driving factors of the decomposition and transformation of soil organic matter. - Journal of Anhui Agricultural Sciences, 34, 2203-2206.
- Guan, S.Y. 1989. Soil Enzyme and Research Technology. Beijing: Agriculture Press.
- Hattenschwiler, S., Jorgensen, H.B. 2010. Carbon quality rather than stoichiometry controls litter decomposition in a tropical rain forest. - Journal of Ecology, 98, 754-763.
- He, G.X. 2002. Degeneration of soil fertility in pure Chinese fi r succession. - Journal of Zhejiang Forestry College, 19, 100-103.
- Li, X.L., Zhang, C.E., Cheng J.M. 1992. Effect of different forest types on humus composition and humic acid properties of soil on the Loess Plateau. - Acta Pedologica Sinica, 29, 64-72.
- Liu, Z.W. 2009. Material Accumulation and Cycling in Forest Ecosystem. Beijing, China Forestry Publishing House.
- Liu, Z.W., Duan, E.J., Liu-zhuo M.J., Feng, S.Y. 2009. Soil polarization under pure stands of different tree varieties in semi-arid hilly areas of the loess plateau. - Acta Pedologica Sinica, 46, 1110-1120.
- Ma, Y.F., Luo, H.B., Song, J.M., Mo, J., Yang, C., Li, Z.H., Cai, K., Yin, Q.S. 2013. Relationships between humus chemical composition and soil factors in typical tobacco growing regions in China. - Acta Tabacaria Sinica, 19, 21-25.
- Nanjing Institute of Soil Science, Chinese Academy of Sciences. 1985. Analysis of Soil Microoganism. Beijing, Science Press.
- Podrázský, V.P.F.C., Remeš, J., Hart, V., Moser, W.K. 2009. Production and humus form development in forest stands established on agricultural lands - Kostelec nad Černými lesy region. - Journal of Forest Science, 55(7), 299-305.
- Ponge, J.F. Jabiol, B., Gegout, J.C. 2011. Geology and climate conditions affect more humus forms than forest canopies at large scale in temperate forests. - Geoderma, 162, 187-195.
- Ponge, J.F., Chevalier, R., Loussot, P. 2002. Humus index: An integrated tool for the assessment of forest fl oor and topsoil properties. - Soil Science Society of America Journal, 66, 1996-2001.
- Prescott, C.E. 2010. Litter decomposition what controls it and how can we alter it to sequester more carbon in forest soils? - Biogeochemistry, 101, 133-149.
- Tabatabai, M.A. Garcia-Manzanedo, A.M., Acosta- Martinez, V. 2002. Substrate specifi city of arylamidase in soils. - Soil Biology & Biochemistry, 34, 103-110.
- Trap, J., Bureau, F., Perez, G., Aubert, M. 2013. PLSregressions highlight litter quality as the major predictor of humus form shift along forest maturation. - Soil Biology & Biochemistry, 57, 969-971.
- United States Department of Agriculture. 1999. Soil Taxonomy. [WWW document]. - URL http://www.nrcs.usda.gov/Internet/FSE_X.
- Zhang et al. DOCUMENTS/nrcs142p2_051232.pdf [Accessed 17 August 2014].
- Wardle, D.A. Nilsson, M.C., Zackrisson, O. 2008. Firederived charcoal causes loss of forest humus. - Science, 320, 629.
- Yan, D.R. 1997. Study on humus soil properties and soil enzyme activity of artifi cial forest. - Forestry Science and Technology, 22, 12-14.
- Yang, Y.S., Yang, L.Z., Yu, X.T. 1996. Changes in composition and properties of soil humus following replacement of broad-leaved forest by Chinese fi r plantation. - Journal of Fujian University of Forestry, 16, 97-100.
- Yu, J., Zhu, C.X., Guo, P., Zhao, Y.H. 2011. Effect of bio-active humic substance on the biomass of Glycyrrhiza uralensis, soil humus composition and enzymatic activities. - Acta Agrectir Sinica, 19, 68-74.