【摘要】 茶稻间作系统叶面积指数高于单作茶园，且上、下２ 层空间分布合理，水稻生长前期形成上部茶冠和下部水稻的生态边界层，生长后期则形成上部水稻和下部茶冠的生态边界层，有利于系统对光、热、水、气资源的充分利用．比之于单作茶园，茶稻间作系统内盛夏期相对光强减弱３５７ ％ ，午后温度降低０９ ～１９ ℃，相对湿度增加７ ％ ，为茶树生长提供了较适宜的生态环境条件，新梢生长速率有所提高．茶稻间作系统中的水稻比水田水稻水分利用率高，边际效应显著，有效穗数增加，结实率提高更多还原

【Abstract】 The study on the tea rice intercropping system in west Auhui mountainous region showed that the leaf area index of this system was higher than that of the single tea garden, and the spatial distribution of its upper and lower layers was more rational. At the early growing stage of rice, the ecological boundary layer was upper tea and lower rice; while at the later stage,it was upper rice and lower tea, which was beneficial to the system to fully use light, heat, water and gas resources. Compared with single tea garden, in the intercropping system in midsummer, the relative light intensity reduced by 35.7%, the temperature after the noon decreased by 0.9～1.9℃, and the relative humidity increased by 7%. All of these provided with a suitable eco environmental condition for the growth of tea trees, and increased the growing speed rate of their new shoots. The water utilization efficiency of rice in the intercropping system was higher than that in paddy field, and the edge effect was significant. The number of effective ears per unit area and the percentage of filled spikelets were increased.更多还原