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钟灵毓秀zlyx

新虫 (初入文坛)

[求助] crown openness

林冠开放度是什么意思呢?
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钟灵毓秀zlyx

新虫 (初入文坛)

谢谢哦,已经查到了,是林学上的一个词,crown  openness represents te total amount of empty space within the projection of a crown, and can be equated to a crown-level average transmittance. 植株在垂直光照下,光斑在整个树冠阴影中所占的比例。
4楼2013-05-15 20:47:55
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犇�?

铁杆木虫 (职业作家)

院士

【答案】应助回帖

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感谢参与,应助指数 +1
zhtear99: 金币+2, 感谢热心应助~~~ 2013-05-11 16:14:49
林冠线  打破建筑群体的单调和呆板感。注重选用不同树形的植物如塔形、柱形、球形、垂枝形等... 构成变化强烈的林冠线;不同高度的植物,构成变化适中的林冠线;利用地形高差变化,布置不同的植物,获得……
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2楼2013-05-10 20:30:48
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犇�?

铁杆木虫 (职业作家)

院士

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3楼2013-05-10 20:31:38
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