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出 处:《辽宁林业科技》2002年第4期8-10,38,共4页Liaoning Forestry Science and Technology
摘 要:我国的木兰科植物约占世界的 1/ 2 ,主要分布在东南部和西南部。沈阳地区属于温带气候 ,年积温 16 0 0~ 340 0℃ ,引种的难度较大。我们开展木兰科植物的引种栽培工作十余年 ,陆续从各地引种栽培 2个属 ,其中木兰属 14种 ,鹅掌楸属 3种 ,有 7种可在小气候条件下安全越冬 ,其中 6种已开花 ;有 5种表现出很强的适应性 ,虽然年年有冻害 ,但冻害程度逐年减轻。试验证明 ,沈阳不适合育苗发展木兰科植物 (如果育苗可采用异地育苗或保护地育苗 ) ,而较适宜引栽成树 ,这样见效快、成本低。Magnolias in our country make up about 1/2 of the total in the world, and maily distribute in southeastern and southwesten China. Shenyang region is of the temperate zone climate, annual accumulation temperature is 1600~3400 ℃, so introduction is very difficult. The introduction and cultivation work of magnolias has conducted for more than 10 years, and introduced 2 genus around the country one after another, among which were 14 species in Magnolia and 3 species in Liriodendron, and 7 species might survive the winter under the condition of microhabitats, of which 6 species has flowered; 5 species has shown strong suitablity, the degree of frozen injury decreased gradually although it occured every year. The results indicated that: Shenyang was not suitable for seedling cultivation of magnolias (seedling cultivation might conduct in other places or on conservative fields), but was suitable for introduction of adult trees, the effect was fast and cost was low in this way. Much attention should be paid to selection of places where were under wind and with a sunny exposure for planting during introduction and cultivation of trees.
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