近海迎风面毛竹林竹材物理力学性质的研究

竹子是集经济、生态和社会效益于一体的优良林种,有着繁殖容易、成林快、一次造林科学经营可持续利用等优点,是区域社会经济发展和生态环境保护的重要资源,其中,毛竹(Phyllostachys edulis(Carr.)H.de Lehaie)为我国所特有的最重要的经济竹种,具有分布广、面积大、利用领域广、效益好等特点。全国现有毛竹林面积720万hm2,其中,毛竹

Study on the Physical and Mechanical Properties of Phyllostachys edulis Timber at Coastal Windward Side

To clarify the effect of coastal environment on quality of Phyllostachys edulis timber, comparison and analysis on physical and mechanical properties of bamboo timber from coastal windward side stand and inland stand was carried out. The results showed that the basic density, air-dry density, oven-dry density, compressive strength parallel to grain, bending strength, elastic modulus in bending of bamboo timber increased with bamboo age increasing on the whole. Effect of coastal windward environments on basic density, air-dry density, oven-dry density, compressive strength parallel to grain, bending strength and elastic modulus in bending of bamboo timber was not obvious, that on timber shrinkage was significant and bending strength of young bamboo (1 a and 3 a) increased remarkably. All results indicated that coastal windward environments was in favor of enhancement in mechanical properties and resistance to wind stress of Ph. edulis forest, and Ph. edulis can be used to construct eco-economic protective forests system at coastal region.