章古台沙地主要造林树种蒸腾强度

Transpiration strength of afforestationtree species on Zhanggutai sandy land

为探讨荒漠化地区不同立地条件下树木适应干旱的能力,研究了章古台沙地主要固沙造林树种的蒸腾强度在不同时期的变化。通过对章古台沙地樟子松、小叶杨的蒸腾强度的研究,发现树种蒸腾强度的大小与树种的抗旱性密切相关。树木蒸腾强度和生理指标的测定结果表明,樟子松的蒸腾强度在不同时期均低于小叶杨。樟子松更适宜在章古台地区栽植。

An experiment was conducted to study the different trees variation of transpiration strength in different times of several main sand-fixing in Zhanggutai sandy land in order to explore the adaptabilities of tree species under different site conditions. Research transpiration strength of Pinus sylvestris var. mongolica, Populus simonii in Zhanggutai sandy land, found the size of the transpiration strength of trees closely related to drought resistance. Determination result of tree species transpiration strength and physiological indexes shows that the transpiration strength of Pinus sylvestris var. mongolica is almost lower than Populus simonii during different periods. Compared Pinus sylvestris var. mongolica to the other species, pinus sylvestris var. mongolic is a more appropriate plant in Zhanggutai sandy land.