[Photosynthetic mechanism of tea yield and quality affected by different habitats].

To understand photosynthetic mechanism of tea yield and quality, an experiment was conducted with four different typical habitats, including three intercropping patterns (S:Osmanthus-Tea, S:Michelia-Tea, S:Osmanthus-Michelia-Tea) and a control (CK) at Changsha Agricutural Observation Station of Chinese Academy of Sciences. The photosynthetic physiological and ecological characteristics of tea yield and quality were examined. The results showed that the habitats S, S, S reduced the leaf temperature (TL), photosynthesis active radiation flux (PAR), net photosynthetic rate (P), transpiration rate (T), and stomatal conductance (g), as well as the tea polyphenol content.