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首页> 外文期刊>林业研究（英文版） >Responses of the seedlings of five dominant tree species in Changbai Mountain to soil water stress
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Responses of the seedlings of five dominant tree species in Changbai Mountain to soil water stress

机译：长白山5种优势树种幼苗对土壤水分胁迫的响应。

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摘要

Soil water stress was studied on the potted seedlings of five dominant tree species (Pinus koraienes Sieb.et Zucc., Fraxinus mandshurica Rupr., Juglans mandshurica Maxim, Tilia amurensis Rupr. and Quercus mongolica Fisch.ex Turcz) from the broadleaved/Korean pine forest in Changbai Mountain. Leaf growth, water transpiration and photosynthesis were compared for each species under three soil moisture conditions: 85%-100% (high water, CK), 65%-85% (Medium water, MW) and 45%-65% (low water, LW) of 37.4% water-holding capacity in field. The results showed that the characteristic of typical drought-resistance of the leaves is significantly developed. The net photosynthetic rate and water use efficiency of Fraxinus mandshurica were higher in MW than those in CK. But for the other four species, the net photosynthetic rate and water use efficiency in CK were lower than those in MW and LW. The transpiration rate responding to soil moistures varied from species to species.
机译：研究了来自阔叶/朝鲜松的5种优势树种（红松，水曲柳，胡桃Ju，紫T和蒙古栎Fisch.ex Turcz）的盆栽幼苗的土壤水分胁迫。长白山的森林。在三种土壤水分条件下比较了每个物种的叶片生长，水分蒸腾和光合作用：85％-100％（高水分，CK），65％-85％（中等水，MW）和45％-65％（低水分） ，LW）在田间持水能力为37.4％。结果表明，典型的叶片抗旱性显着提高。水曲柳的净光合速率和水分利用效率均高于对照。但是对于其他四个物种，CK的净光合速率和水分利用效率均低于MW和LW。响应土壤水分的蒸腾速率因物种而异。

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