茶叶乌桕混交,能形成比较合理而稳定的群体结构,与纯茶园相比,更能充分利用空间,提高光能利用率。据浙江林学院试验,由于乌桕树冠的作用,混交茶园夏季光照强度比纯茶园降低50％,温度低2℃,空气相对湿度增加5—12％,土壤含水量增加1.37％,耕作层含砂量减少11％;又因混交茶园内枯枝落叶多,土壤肥力增加,可提高乌桕、茶叶的产量 Mixing tea leaves, can form a more reasonable and stable group structure, compared with the pure tea garden, make full use of space, improve the utilization of light energy. According to the experiment of Zhejiang Forestry College, the light intensity of mixed tea garden decreased by 50% compared with that of pure tea garden and the temperature was 2 ℃, the relative humidity of air increased by 5-12%, the soil water content increased by 1.37%, the sand content of tillage layer A decrease of 11%. Due to the large amount of litter in the mixed tea plantation and the increase of soil fertility, the yield of black jackfruit and tea can be increased