CAJ | 학술논문

比较研究了紫茎泽兰及其伴生种在干旱条件下的光合特性,了解紫茎泽兰在干旱条件下的入侵特性,探讨紫茎泽兰具有较强入侵性的原因.结果表明,在干旱胁迫条件下,紫茎泽兰最大光合速率（Pmax）并不高,紫茎泽兰通过关闭气孔,降低蒸腾速率（Tr）,提高水分利用效率（WUE）等方式来适应胁迫环境.紫茎泽兰通过保持较长的生长时期获得生长优势,这可能是其入侵干旱贫瘠环境的策略之一.
비교연구료자경택란급기반생충재간한조건하적광합특성,료해자경택란재간한조건하적입침특성,탐토자경택란구유교강입침성적원인.결과표명,재간한협박조건하,자경택란최대광합속솔（Pmax）병불고,자경택란통과관폐기공,강저증등속솔（Tr）,제고수분이용효솔（WUE）등방식래괄응협박배경.자경택란통과보지교장적생장시기획득생장우세,저가능시기입침간한빈척배경적책략지일.
The photosynthetic characteristics of Eupatorium adenophorum and its six associated species were comparatively studied to explore the invasive characteristics under arid conditions of E.adenophorum.The results showed that maximum photosynthetic rate（Pmax） of E.adenophorum is not high under drought stress conditions;that it shuts up stomata to reduce transpiration,increases water use efficiency,to adapt the coercive environment.E.adenophorum could maintain a longer growth period to obtain growth advantage,which may be one of the strategies it invades the coercive environment.