大别山五针松(Pinus dabeshanensis cheng et Law)散生于安徽岳西县及湖北英山、罗田县的山地,数量极少,为我国特有的珍贵用材树种。在《中国稀有珍贵与濒临灭绝的植物名录》中,被列为二级保护树种,1981年我省划为重要的省定保护树种。本研究是采集不同立地条件的三株胸径20Cm以上试材,对其构造性质和各项物理力 Pinus dabeshanensis cheng et Law scattered in mountainous areas of Yuexi County, Anhui Province and Yingshan County and Hubei Province of Luotian County, with a very small number, is a precious timber species unique to China. In “China Rare and Endangered Plant Directory”, was classified as two protected species, in 1981 my province was classified as an important provincial protected species. In this study, three specimens with DBH above 20 cm were collected at different site conditions, and their tectonic properties and various physical forces