4Kuwatsuka S, Tsutsuki K, Kumada K. Chemical studies on soil humic acids. I. Elemental composition of humic acids. Soil Sci Plant Nutr, 1978, 24:337-347.
5Chen Y, Senesi N, Schnitzer M. Information provided on humic substances by E4/E6 ratios. Soil Sci Soc Am J,1977,41 : 352-358.
6Hartford R A, Frandsen W H. Surface flaming may not portend extensive soil heating. Int J Wildland Fire, 1991, 2:139-144.
7Gillon D, Gomendy V, Houssard C, et al. Combustion and nutrient losses during laboratory burns. Int J Wildland Fire, 1995, 5 : 1-12.
8Campbell G S, Jungbauer J D Jr, Bidlake W R, et al. Predicting the effect of temperature on soil thermal conductivity. Soil Sci, 1994, 158:307-313.
9Certini G. Effect of fire on properties of forest soils: A review. Oecologia, 2005, 143 : 1-10.
10Raison R J, Woods P V, Jakobsen B F, et al. Soil temperatures during a following lowqntensity prescribed burning in an Eucalyptus pauciflora forest. Aust J Soil Res, 1986, 24:33-47.
