A study on tea plant transpiration and its influencing factors in slop lands of red soil regions
红壤坡地茶园蒸腾速率及其环境影响因子的研究

The transpiration rate of tea plant was studied in slop lands of red soil regions. The results indicate that the daily variation of tea plant transpiration rate shows an obvious trend with a high value in midday and low values in the early morning and evening, however, there are some differences in the diurnal variation curves of tea plant transpiration rate in different days; the net radiation and air temperature are the two main factors affecting the transpiration rate of tea plant; there is a close correlation between the transpiration rate and stomatal conductance, and with the stomatal conductance increasing, the transpiration rate also increases. Finally, the transpiration driving factors, the probability of preventing transpiration, the stomatal action's regulation, and the water use efficiency of tea plant are discussed.