CAJ | 학술논문

探讨了西藏色季拉山典型植物光合特性,采用LI-6400光合仪对色季拉山15种典型植物进行了光合响应曲线测定,以阐明西藏高原植物光能利用特性在群落维持中的作用. 通过光合-光响应曲线拟合得到了最大净光合速率(Pmax)、光饱和点(LSP)、光补偿点(LCP)和羧化效率(AQY)4个参数,采用欧氏距离法进行了聚类分析,结果表明:15种优势植物可划分为3个类群,即强光型、中光型和弱光型.
탐토료서장색계랍산전형식물광합특성,채용LI-6400광합의대색계랍산15충전형식물진행료광합향응곡선측정,이천명서장고원식물광능이용특성재군락유지중적작용. 통과광합-광향응곡선의합득도료최대정광합속솔(Pmax)、광포화점(LSP)、광보상점(LCP)화최화효솔(AQY)4개삼수,채용구씨거리법진행료취류분석,결과표명:15충우세식물가화분위3개류군,즉강광형、중광형화약광형.
To explore photosynthetic characteristics of typical plants in Sejila Mountain ,the article adopts LI-6400 to identify 15 kinds of typical plants'photosynthetic response curves , which also clarifies the role of Tibetan plateau plants'light utilization characteristics in the maintenance of the co mmunity .Through the curve -fitting of photosyn-thesis-light response,the article gets the maximum net photosynthetic rate (Pmax),light saturation point (LSP), light compensation point (LCP) and carboxylation efficiency (AQY).By using Euclidean distance clustering analy-sis,the results show that the 15 kinds of do minant plants can be divided into three types ,namely strong-light type , moderate-light type and weak-light type.