【摘要】 分析研究了沙棘光合速率和林内气象因子的时间变化规律,以及光合速率与气象因子之间的关系。结果表明,无论在迅速生长期和果实成熟期,沙棘光合速率具有双峰型日变化,迅速生长期的光合速率强于果实成熟期;气象条件影响光合速率,尤其是高温、干燥是限制光合作用的主要气象因子。更多还原

【Abstract】 Temporal variation patterns and relationships between photosynthesis rate of Hippophae rhamnoides,and meteorological factors were studied.The results showed that the photosynthesis rates of H.rhamnoides both in rapid growing and fruit ripening stages were in bimodal pattern,and higher in rapid growing stage;photosynthesis rates were influenced by meteorological factors,high temperature and dryness were two limiting factors for photosynthesis.更多还原