保靖不同海拔黄金春茶品质形成主要气象及生化因子研究  

Study on main meteorological and biochemical factors of quality formation of gold spring tea at different altitudes in Baojing

作　　者：肖健 刘慧 郑福维 刘松 卿湘涛 XIAO Jian;LIU Hui;ZHENG Fu-wei;LIU Song;QING Xiang-tao(Hengyang Meteorological Bureau,Hengyang 421000,Hunan,China;Hunan Provincial Key Laboratory of Meteorological Disaster Prevention and Mitigation,Changsha 410118,China;Xiangxi Meteorological Bureau,Jishou 416000,Hunan,China)

机构地区：[1]衡阳市气象局,湖南衡阳421000 [2]气象防灾减灾湖南省重点实验室,长沙410118 [3]湘西州气象局,湖南吉首416000

出　　处：《湖北农业科学》2021年第1期72-76,共5页Hubei Agricultural Sciences

基　　金：2015年保靖县政府保靖黄金茶气候品质认证项目(BJhjcqxrz2015-21211);国家科技支撑计划项目(2015BAC03B05)。

摘　　要：利用2016—2018年保靖县黄金村不同海拔高度气象站资料,对保靖县不同海拔高度黄金茶生育期气象条件及影响春茶品质形成的主要生化因子特征进行了研究。结果表明,茶园山谷地带随海拔高度递增,温度递减0.3℃/100 m,年降水量递增106.2 mm/100 m,年日照时数递增47 h/100 m;≥5℃有效积温对春茶开采有明显的指示意义;位于海拔360 m的保靖黄金茶主要生化因子含量最优,且优于其他知名茶叶;茶多酚含量与海拔高度、≥5℃有效积温和年日照时数呈正相关,相关系数均为0.98;酚氨比与上半年总降水量呈正相关(相关系数为0.94);咖啡因含量与海拔、年日照时数和≥5℃有效积温呈高度负相关(相关系数分别为-0.96、-0.96、-0.95)。Using the meteorological data of Baojing Golden village’s different altitude meteorological stations from 2016 to 2018,the meteorological conditions and tea quality characteristics of Baojing gold tea growth stages were studied.The results showed that,with increasing altitude,the temperature decreased by 0.3℃/100 m,the annual precipitation increased by 106.2 mm/100 m,and the annual sunshine hours were 47 hours/100 m in tea garden valley area.The effective accumulated temperature greater than or equal to 5℃played the role in indication for spring tea harvest time.Baojing gold tea located at an altitude of 360 m had the best quality and was superior to other well-known teas.The tea polyphenols was positively correlated with altitude,the effective accumulated temperature greater than or equal to 5℃and the sunshine hours(their correlation coefficients are all 0.98).The ratio of phenol to ammonia was positively correlated with the total precipitation in the first half of the year(the correlation coefficient is 0.94).Caffeine was negatively correlated with altitude,the effective accumulated temperature greater than or equal to 5℃and the sunshine hours(their correlation coefficients are-0.96,-0.96,-0.95,respectively).

关 键 词：保靖黄金茶 海拔 气象因子 茶叶品质 

分 类 号：S571.1[农业科学—茶叶生产加工]