摘要
以2a生白榆、榆叶梅、山桃为试验材料,取南疆焉耆垦区耕作层下土壤作为试验土源,采用盆栽方法,设置4个灌水次数处理,观察和分析不同灌水次数处理对三种园林植物的生长影响。结果表明:3种植物在各处理下生物量均比对照组有所增加,在T3处理下各树种的生物量达到最大值,分别为白榆915.25g,山桃513.18g,榆叶梅为435.68g;在各处理条件下,根冠比变化为山桃CK>T1>T2>T3,榆叶梅随着灌水次数增加而下降,白榆变化不显著;3种园林植物的抗旱能力白榆>榆叶梅>山桃。
With two years＂ Ulmus pumial , Amygdalus triloba , Prunus davidiana as experimental material and soil under cultivation layer in the south of Xinjiang province from Yanqi reclamation area as the test soil source, potted plants with four irrigation treatments were applied. Effects of irrigation frequency on growth of three species of garden plants were observed. The results showed that. the three plants in each treatment biomass were increased, the biomass of different tree species reached the maximum value at treatment T3, respectively, Ulmus pumila 915. 25 g, Prunus davidiana 513.18 g, Amygdalus triloba 435.68 g. In all treatment conditions, root-shoot ratio for Prunus davidiana was. CK〉T1〉T2〉T3; whereas Amygdalus triloba root-shoot ratio decreased with the increase of irrigation times; Ulmus pumial root-shoot ratio did not change significantly. The drought resistance of 3 garden plants was like. Ulmus pumial 〉Amygdalus triloba〉Prunus davidiana.
出处
《陕西林业科技》
2015年第2期13-16,共4页
Shaanxi Forest Science and Technology
关键词
园林植物
灌水次数
生物量
Landscape plants
irrigation frequency
biomass
