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在浙江省毛竹主产区,采集不同母岩类型(花岗岩、砂页岩、凝灰岩)和不同竹龄(1、3年生)的毛竹竹叶样品,研究了不同母岩和竹龄对毛竹叶片中硅与植硅体碳含量的影响,以及竹叶样品中硅和植硅体含量之间的相关关系.结果表明:母岩、竹龄对毛竹竹叶中硅和植硅体含量均有显著影响,不同母岩土壤毛竹竹叶中硅含量表现为花岗岩(33.19 g·kg~(-1))>砂页岩(32.64 g·kg~(-1))>凝灰岩(24.51 g·kg~(-1)),植硅体含量表现为花岗岩(105.81 g·kg~(-1))>砂页岩(93.50 g·kg~(-1))>凝灰岩(59.40 g·kg~(-1));3年生毛竹竹叶中硅与植硅体含量均显著高于1年生.母岩与竹龄对竹叶植硅体碳含量均无显著影响,而对竹叶干物质植硅体碳含量存在显著影响.3种母岩发育土壤上毛竹叶中硅与植硅体含量间呈显著正相关;但1年生竹叶中两者之间无显著相关性.要准确估算全国不同地域、不同土壤类型毛竹竹叶的植硅体含量时,需要考虑母岩、植物株龄的影响.
In the main area of Moso bamboo production in Zhejiang province, samples of bamboo leaves with different parent rock types (granite, sand shale and tuff) and bamboo ages (1 and 3 years old) were collected to study the effects of different parent rocks and bamboo ages Silicon and phytolith carbon content and the correlation between silicon and phytolith content in bamboo leaves.The results show that the parent rock and bamboo age have significant effects on the contents of silicon and phytolith in bamboo leaves , And the contents of silicon in the bamboo leaves of different parent rocky soils were as follows: granite (33.19 g · kg -1)> sand shale (32.64 g · kg -1)> tuff (24.51 g · kg -1) 1)), and the content of phytoliths is characterized by granite (105.81 g · kg -1)> sand shale (93.50 g · kg -1)> tuff (59.40 g · kg -1) ; The contents of silicon and phytoliths in the three-year-old Phyllostachys pubescens leaves were significantly higher than those in the one-year roots.The parent rock and bamboo age had no significant effect on the phytolith carbon content of the bamboo leaves, Significantly affected the contents of silicon and phytolith in Phyllostachys pubescens Phyllostachys pubescens Phyllostachys pubescens Phyllostachys pubescens Phyllostachys pubescens Phyllostachys pubescens Phyllostachys pubescens Phyllostachys pubescens Phyllostachys pubescens Phyllostachys heterocycla cv. Bamboo leaves of the plant When the silicon content, you need to consider the impact of parent rock, plant age.