【摘要】 本文通过对混农林体系作物光合效率及光能利用效率测定与分析，结果表明：混农林综合体系能够提高作物净同化率、相对生产率和作物生长率，能够提高作物光能利用效率。旱年作物光合效率提高幅度高于丰水年，混农林体系具有增产效益，增产幅度丰水年低于旱年，但丰水年单位产量却高于旱年。作物光合效率与混农林体系结构配置有密切关系。更多还原

【Abstract】 Determination and analysis on photosynthetic efficiency and utilization percent of solar energy of crops in an agroforestry system show that net assimilation rate, relative production rate, growth rate and use percent of solar energy of the crops were increased. The rising scope of the photosynthetic efficiency of the crops in dry years was more than that in wet years. Mereover the crop yield was raised, the rising scope in dry years was more than that in wet years, but the unit yield in wet years was more than that in dry years. The photosynthetic efficiency of the crops was related to the patterns of the agroforestry system.更多还原