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在广泛收集四川大头茶（GordoniaacuminataChang）地理分布资料的基础上，利用目前国际上被认为是较好的几种研究植被-气候相互关系的指标和方法，包括Kira的温暖指数和寒冷指数，徐文铎的湿润指数，Penman的干燥度指标，Thornthwaite的潜在可能蒸散和水分指数，Holdridge生命地带分类系统指标，以及一些单一气候因子指标，综合研究了四川大头茶的地理分布与环境水热状况的关系，讨论了四川大头茶垂直分布的上限、下限以及北界Kira热量指标状况．主分量（PCA）分析表明，气候水热指标对四川大头茶地理分布影响作用的相对次序是热量因子、降水因子、日照时数、相对湿度．利用Holdridge生命地带分类系统指标预测了CO2浓度倍增条件下四川大头茶地理分布区的可能变化．
Based on the extensive collection of the geographical distribution data of Gordonia acuminata Chang, using several indicators and methods that are currently considered as good in the world for studying vegetation-climate correlation, including Kira’s warm index and cold index, Xu’s Wetness index, Penman’s dryness index, Thornthwaite’s potential evapotranspiration and water index, Holdridge life zone classification system index, and some single climatic factor indicators, the relationship between the geographical distribution of Sichuan Dacha and environmental hydrothermal conditions was discussed and discussed The vertical distribution of the upper reaches of Sichuan tea, the lower limit and the northern boundary Kira calorific status. PCA analysis shows that the relative order of influence of climatic hydrothermal index on the geographical distribution of Szechwan tea is thermal factor, precipitation factor, sunshine hours and relative humidity. Using the Holdridge index system for life zone prediction, the possible changes of the geographical distribution area of Sichuan Dacha in doubled CO2 concentration were predicted.