Physio-Ecological Characteristics of Young Eucalyptus under Different Soil Water Condition

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Physio-Ecological Characteristics of Young Eucalyptus under Different Soil Water Condition

更新时间：2024-11-07

- Physio-Ecological Characteristics of Young Eucalyptus under Different Soil Water Condition
- Vol. 17, Issue 5, Pages: 126-128(2003)
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  CLC： S71
- Published：2003
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Physio-Ecological Characteristics of Young Eucalyptus under Different Soil Water Condition[J]. 2003, 17(5): 126-128.
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Physio-Ecological Characteristics of Young Eucalyptus under Different Soil Water Condition[J]. 2003, 17(5): 126-128. DOI：

摘要

通过盆栽试验

对不同土壤水分条件幼龄桉树生理生态特点进行了分析.结果表明

不同土壤水分条件下桉树的枝叶生长有明显差异

水分不足将导致桉树分枝少

叶片少

叶面积减少

下部叶子叶尖枯死;不同土壤水分条件对桉树生理也有明显影响

水分不足将导致叶片气体交换阻力增大

蒸腾量和蒸腾时间减少

光合速率降低.总的影响是生长量水分利用效率显著降低.依据试验结果

如在干旱季节采取适当的保水措施或灌溉措施

使土壤田间持水量提高到40%～50%

桉树的生长量可大大增加.

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Physio-Ecological Characteristics of Young Eucalyptus under Different Soil Water Condition

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