The results show that not only the porosity does greatly affect the windbreak, but also the tree distance does.The distance is not beyond 1.3 to avoid air leak.
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释义
结果表明:不仅林冠疏透度对防护林带的遮蔽防风有明显影响,而且树木间的株距对林带整体的遮蔽效果也有比较显著的影响,为避免穿流风对遮蔽效应的影响,林带宽距比不宜超过1.;3;
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