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In this paper, in order to eliminate the adverse effects of blue-stain on the wood surface appearance and improve wood mechanical properties, wood compression process and wood thermal treatment process were applied into the physical modification of blue-stain Masson Pine (Pinus massoniana). The test results showed that when the specimens are hot-pressed with the compression rate of 50%, and then were heat-treated at 220°C for 2h, the wood surface color and dimension stability could be improved significantly. Moreover, the surface hardness and the compression strength of the compressed-thermal treated wood could be increased significantly compared to the untreated blue-stain wood. Based on this study, the biological properties of the specimens after compression and thermal treatments will be investigated in the future.

Chinese fir (Cunninghamia lanceolata Hook.) and Mongolian Scots pine (Pinus sylvestris Linn. var. mongolica Litv.) with dimension of 19.019.0450.0 mm were treated with two concentrations of amine copper quat-type D (ACQ-D) solutions (0.5%, 1.0%) respectively and post-treated with three different methods including humidity chamber, drying oven and hot water bath. The effects of these variables on copper leaching from ACQ-D treated wood were investigated according to the leaching test of AWPA E11. The results showed that post-treatment could improve the leaching resistance of ACQ-D treated wood effectively compared to the specimens those were leached immediately after impregnation. After some promising post-treatments, copper leaching from the treated wood was not only associated with the joint effects of retentions, wood species and different locations in the treated wood, but also influenced by the special fixation mechanisms in different post-treatments.