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自然条件下水分状况对箭杆杨叶中输导组织及叶肉组织有一定的影响。水分状况好的叶中导管管腔直径大于水分状况差的，而管壁厚度却相反，水分状况差的导管管壁厚度大于水分状况好的。此点与试验条件下所得的结果略有差异，原因在于，试验条件下所用的材料为植物的幼茎或同化枝，而此项工作所用的材料为叶，在对干旱环境及水分状况变化的适应上，叶比茎或同化枝更为敏感。叶肉中栅栏组织在水分状况较差时发育程度比水分状况好时高。无论是导管管腔直径、管壁厚度还是栅栏组织，在５、７、９三个月内皆呈逐渐发达状态，显示了叶内组织的发育与成熟的过程。
Under natural conditions, the water status had some influence on the transplanted tissues and mesophyll tissues of arrowhead poplar leaves. The lumen diameter of the lumen in the good watery condition is larger than that in the watery condition, but the thickness of the lumen of the lumen is opposite, and the lumen thickness of the lumen in the lukewarm water condition is larger than that in the watery condition. This point is slightly different from the results obtained under test conditions because the material used under the test conditions is the young stem or assimilating branch of the plant, and the material used for this work is the leaf. Under the conditions of changes in the arid environment and water Adaptation, leaf more than the stem or assimilation branch is more sensitive. Palisade mesocarp organization in the poor water conditions when the degree of development is better than when the water is high. Both the lumen diameter of the catheter, the thickness of the wall and the palisade tissue showed gradual development within 5, 7, and 9 months, indicating the process of development and maturation of the leaf tissue.