【摘要】 本文从显微结构,根系分布和水分生理生态特点等方面,综合研究了辽西半干旱地区主要树种的抗旱性。结果表明,侧柏、樟子松、蒙古栎、黄榆、元宝枫的抗旱性强,林分可在干年阳坡稳定生长;花曲柳适作伴生树种;油松、刺槐在造林初期生长良好,但在严重干旱年份未达成材生长便开始衰退,甚至枯干。前者适于阴坡造林,后者适于沟坡、沟底及山下腹坡脚处造林。更多还原

【Abstract】 The drought resistance and characteristic of drought adaptability of t e major tree species was systematically studied according to the microstructure, distribution of root system, characteristics of water physiological ecology etc., in a semi-arid zone in Fuxin of Liaoning Province. The drought resistance of Platycladus orientalis, Quercus mongclica, Ulmus macrocarpa, Acer Truncatum, Pinus sylvestris var. mongolica were powerful, which can grow steadily on sunny and arid slopes. Fraxinus chinensis var. thynchophylla hemsl. is a companion. Pinus tabulaeformis and Robinia pseudo-acacia grow well only in the beginning of afforestation, because of their declining of growth or withering of tops in serious dry years before they grow to full size. The former is suited to be planted on northern slopes, and latter in valleys or at the foot of hills.更多还原