CCA,ACC和CS对火烧木的防腐效力及其影响因素的研究

本文选用大兴安岭林区的主要树种——落叶松(Larix gmelini (Rupr.)Litvin)、樟子松(Pinus Sylvesstris. Var mongolica Litven)的火烧木为试材,以林区普遍泛滥的松针层孔菌(Phellinus. Pini)、硫磺(火旬)孔菌(Laetiporus. Sulphureu)和壳囊孢(cytospoya.sp)为试验菌种,试验研究了CCA,ACC和CS三种防腐剂的效果及影响因素,并利用ESCA,原子吸收光谱仪探测防腐剂的渗透,利用SEM观察菌丝在试材中的生长状况。结果表明:CCA的效果最好,其次是ACC,再次是CS。在三个菌种中,腐朽力最强的是硫磺(火旬)孔菌,其次是松针层孔菌,再次为壳囊孢。

RESEARCH ON EFFECTS OF PRESER ATION OF FIRE-DAMAGED WOOD TREATED BY CCA, ACC AND CS AND THEIR INFLUENCING FACTORS

Larix gmelini and pinus sylvestris var. mongolica, the main trees in the Great Xingan Mountain were selected as the testing species of wood; phellinus pini., Laetiprus sulphureu and Cytospoya sp. which spread generally in the forest area as testing species of fungi, the effects of CCA, ACC and CS were determined on fire-damaged wood preservation and influence factors involved. By taking advantage of ESCA, Atomic absorption spectrum and SEM, the penetration of preservatives in wood and development of hyphae in wood cell were studied, which shows that the three preservatives make different effects upon wood. CCA is best while ACC is better than CS. Among the three fungi, Laetiporus sulphureu is the strongest in rotting wood and phellinus pini is stro~ger than Cytospoya sp.