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银杉生态环境的调查研究
李瑞高; 黄正福; 石金华;
1.广西植物研究所;2.广西花坪自然保护区
摘要:
本文报道我国特有濒危的珍贵植物——银杉的生态环境及其特性,调查结果表明,银杉在广西花坪林区分布于海拔1020—1460米,坡度30度以上的山脊及山脊的南坡或西坡,生长在以广东五针松为主的针、阔叶混交林或阔叶林中,土层浅薄,呈酸性反应的山地黄壤或黄棕壤的岩隙间。银杉具有喜光、耐寒、抗风、耐瘠薄等生态特性。 银杉幼龄生长缓慢,天然更新能力弱,残存个体少,自然分布范围越来越小,有被阔叶树种更替的趋势。调查研究其生态环境性,为保护种源和引种栽培提供科学依据。
关键词:  酸性反应  花坪  阔叶树种  生态环境  天然更新能力  五针松  阔叶混交林  引种栽培  生态特性  自然分布区  
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