梭梭光合生理生态过程与干旱环境的相互关系  

Interrelation Between the Process of Photosynthetic Physiological Ecology of Haloxylon ammodendron and Xeric Environment

作　　者：鞠强[1,2] 贡璐[1,2] 杨金龙[1,2] 潘晓玲[1,2] 

机构地区：[1]新疆大学资源与环境科学学院 [2]干旱半干旱可持续发展国际研究中心,乌鲁木齐830046

出　　处：《干旱区资源与环境》2005年第4期201-204,共4页Journal of Arid Land Resources and Environment

基　　金：<国家重点基础研究发展规划>项目"中国西部干旱区生态环境演变与调控研究"(G1999043503)资助。

摘　　要：梭梭(Haloxylonammodendron)是西北干旱地区重要的表征类群。基于测得自然条件下梭梭叶片光合生理生态的相关指标,进行分析,结果表明:梭梭对干旱环境具有良好的适应能力,其净光合速率、蒸腾速率的日变化曲线呈双峰型,具光合午睡、蒸腾午休现象。这种适应可能是通过气孔的部分关闭来实现的。Haloxylon ammodendronisan important plantin northwest arid lands. Interrelationbetween the processof photosynthetic physiological ecology of Haloxylon ammodendronand xeric environmentwere studied in Xinjiang Fukang. The following results were obtained: Haloxylon ammodendronhad the abilityof adaptability to xeric environment, The diurnal course of photosynthetic rate and transpirationrate generally showed the pattern of double peak and had photosynthetic depression, which was possibly due to the closureof stoma.These provided scientific basic for drought resistant afforestation of Haloxylon ammodendron.

关 键 词：干旱环境 生理生态过程 梭梭 相互关系 西北干旱地区 光合生理生态 净光合速率 日变化曲线 自然条件 适应能力 蒸腾速率 双峰型 类群 午休 

分 类 号：S126[农业科学—农业基础科学] Q959.837[生物学—动物学]