Abstract: Some microclimatic factors are measured for Slash pine pure forest and mixed forest with Acacia auriculacfomis in Leizhou Peninsula of Guangdong province. The light intensity on forest floor and at 1.5m height in mixed forest is respectively 77% and 62% lower and varies milder than that in pure forest, presenting better ecological effects. The growth rate and biomass of mixed forest are 1.45 and 5.34 times respectively larger than those in pure forest. Environmental differences are considered as the cause for the better growth of Slash pine in mixed forest.

Key words: Trametes gallica, laccase, biorefractory compound, degradation