复合茶园能提高茶叶的产量和质量已是不争的事实．然而复合茶园内的光照强度必须符合茶树生长发育需要，过强或过弱都将影响茶叶的产量和品质．因此，研究复合茶园内的光照强度具有重要的理论与实践意义．而计算茶园内各点的光照强度的关键问题是要解决间作树的消光率，通过间作树冠层消光率的计算就可算出茶园各点的光照强度，以作复合茶园设计和调控之依据. Compound tea plantation can improve the yield and quality of tea is an indisputable fact. However, the intensity of light in the compound tea plantation must meet the needs of tea tree growth and development, too strong or too weak will affect the yield and quality of tea. Therefore, the study of light intensity within the complex tea plantation has important theoretical and practical significance. The key problem of calculating the light intensity of each point in the tea plantation is to solve the extinction rate of the intercropping tree. Calculating the light intensity of each point of the tea plantation through the calculation of the extinction ratio of the canopy can serve as the basis for the design and regulation of the compound tea plantation.