CAJ | 학술논문

在自然干旱胁迫条件下，对5年生油松、岷江柏、刺槐、榆树4个树种的生理生化指标分别在旱季和雨季进行测定，分析讨论了干旱胁迫下，各树种生理生化指标的变化规律及其相关关系。根据4个树种在干旱胁迫条件下各指标的表现，利用主成分分析法对4个树种的抗旱性进行综合评价。抗旱性综合评价结果表明：4个树种的抗旱能力以刺槐的抗旱性最强，油松的抗旱性最差。其排名顺序为：榆树〉刺槐〉油松〉岷江柏。
재자연간한협박조건하，대5년생유송、민강백、자괴、유수4개수충적생리생화지표분별재한계화우계진행측정，분석토론료간한협박하，각수충생리생화지표적변화규률급기상관관계。근거4개수충재간한협박조건하각지표적표현，이용주성분분석법대4개수충적항한성진행종합평개。항한성종합평개결과표명：4개수충적항한능력이자괴적항한성최강，유송적항한성최차。기배명순서위：유수〉자괴〉유송〉민강백。
Under natural arid condition, the physiological data of 4 tree species, i.e., Pinus atbualefor- mi, Ulmus pumila, Robinia pseudoacac, and Ulmus pumila, which were all 5-year-old, were determined in dry and raining season, respectively. The variation and relationship of the physiological data under drought stress were discussed to perfect the drought theory of plant. Then the method of principal compo- nent analysis was used to analyze the physiological data in order to evaluate the ability of drought resis- tance of the 4 native tree species. The results showed that the drought resistance levels of the 4 native tree species were as follows: Robinia pseudoacac〉Ulmus pumila〉Ulmus pumila〉Pinus atbualeformi.