8个乡土树种抗逆性对比研究

Conparison of Resistance of 8 Kinds of Local Tree Species

在半干旱地区内蒙古中部3个不同造林立地类型对当地的8个乡土树种进行亚区造林对比试验,调查了被试树种在自然状态条件下的生长特征,应用PV技术测定了其水分生理指标,测定了抗寒及抗春季干旱风的等级,运用综合指标(成活、保存率、抗旱水分生理、耐寒性等)分析各树种的抗逆性和对不同立地条件的适应能力。结果表明:柄扁桃、桃叶卫矛、荆条和山杏(对照)抗逆性强,毛樱桃、山桃抗逆性较强,酸枣(山西种源)、欧李(山西栽培种)为中等,臭椿较差。

At 3 kinds of sites in middle of Inner Mongolia, subregion forestation contrast tests on 8 kinds ot local tree species was done. Growth characteristics of trial trees under natural condition were investigated. Their moisture physiological indexes were determined by use of PV technology. Cold-resistant grade and arid-wind-resistant grade in spring were determined. Resistance of tree species and adapta bility to different site type have been analyzed with comprehensive indexes （survival rate, preservation rate, drought- resistant moisture physiological, cold- resistance, etc. ）. The results showed： Prunus pedunculata Maxim., Euonymus hamiltonianus Wall., Hibiscus syriacus Linn., and Prunus ansu Komar. 〉Prunus tomentosa Thunb. , Prunus davidiana Franch. 〉Ziziphus jujuba Mill. vat. spinosa Hu. （from Shanxi）, Prunus humilis Bge. （planted in Shanxi） 〉Ailanthus altissima Swingle.