taxodium distichum
- taxodium distichum的基本解释
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美国水松
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The physical and mechanical properties of Taxodium 'zhongshansha 302' and Taxodium distichum were studied.
对中山杉302和落羽杉两种木材的部分物理力学性质进行了测试比较分析。
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Most of the content of nutritive substance declined with the emergence of callusing and rooting. The conventional rule of C/N value didn't suit for Taxodium distichum.
随着愈伤组织和不定根的出现,多数营养物质含量呈下降趋势,传统的C/N规律对落羽杉扦插并不适合。
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Results show that the basic density, air-dry density, bending strength, modulus of elasticity, and compressive strength parallel to grain of T.'zhongshansha 302' are higher than those of T. distichum, and the oven-dry shrinkage and the air-dry shrinkage in tangential and volume are lower than those of Taxodium distichum, and the differences are all prominent at the 0.05 level.
结果表明:中山杉302木材的基本密度、气干密度、抗弯强度、抗弯弹性模量和顺纹抗压强度的平均值均比落羽杉高,而弦向全干干缩率、体积全干千缩率、弦向气干干缩率、体积气干干缩率均比落羽杉低;其差异都在0.05水平显著。
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Taxodium distichum:落羽杉
落羽杉(taxodium distichum)为杉科落羽松属高大乔木,原产美国东南部,其分布区域较池杉广,在北美洲可分布到北纬40度地带,有一定耐寒力. 树高可达30-50米,我国在20世纪20年代开始引进,现在珠江三角洲流域及长江流域栽培较多,落羽杉为古老的孑遗树种.
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Taxodium distichum:{落羽松}
Taxodium assendens {池杉} | Taxodium distichum {落羽松} | Taxodium mucronatum {墨西哥落羽杉}
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bald cypress; deciduous cypress; Taxodium distichum Rich:落羽松
落葉性闊葉林 deciduous broad-leaved forest | 落羽松 bald cypress; deciduous cypress; Taxodium distichum Rich. | 落羽松 deciduous cypress; Taxodium