论文部分内容阅读
依据深圳市城市绿化管理处对本市道路各绿化观赏树种全面调查的结果,选出12种常用且长势良好的树种作为滞尘能力测定的目标树种,连续40天采用隔天采样的方式测定各树种的滞尘能力,并对其叶表细微结构进行了电镜扫描对比。得出不同树种的滞尘能力差异可达5倍以上,滞尘能力的变化趋势也不同。经电镜观察发现,植物叶表由于纤毛、蜡质、沟状组织及分泌物等结构的有无、分布位置及数量不同,有不同的滞尘方式及滞尘能力。
According to the results of a comprehensive survey of ornamental tree species in the city by the Urban Greening Administration of Shenzhen Municipality, 12 commonly used and well-established tree species were selected as the target species for determination of dust-holding ability. The species of the tree species Of the dust ability, and its leaf surface microstructure scanning electron microscope comparison. It can be concluded that the difference of dust-holding capacity of different tree species can reach more than 5 times, and the change trend of dust-holding ability is also different. Observed by electron microscope, the leaf form of the plant has different ways of dust retention and dust retention because of the structure of the cilia, waxiness, ditch-like tissue and secretions, the distribution location and the number of the leaves.