摘要
研究了青海东部干旱半干旱地区常见的１４种早生树种在多项抗旱生理指标上的特征。通过凋萎系数的测定将参试树种的抗旱程度进行了初步划分。深入研究了多项水分生理指标，并据此进行了主成份二维排序，将参试树种按耐旱特征划分为五个不同的抗旱类型，供各种生态类型区选用。又综合多指标对１４个树种的抗旱顺序进行了综合排序。
he paper researches on several indexes of physiological' drought of 14 conventional species in the arid and semi-arid region of east Qinghai. Based on the measurements of wilting coefficient of 14 species, the authors suggest a preliminary ordination of drought resistance of 14 species. The paper deals with multi-index of water physiology and suggest the twi-dimensional arrangement of main ingredients. In accordance with drought resistance, 14 species are divided into 5 kinds to provide the reference for other ecological zones. Based on the comprehensive comparison of multi--index,the paper presents the comprehensive ordination of drought resistance of 14 species.
出处
《干旱区研究》
CSCD
北大核心
1996年第1期59-63,共5页
Arid Zone Research
关键词
旱生树种
锦鸡儿
耐旱性
水分生理
drought species ,caragana,drought resistance,water physiolgy
