Effects of Lower Temperature in Spring on Tea Yield in Xuancheng Area

• 作者: Wang Dalin Wang Jun
• 来源期刊: 气象与环境研究：英文版
• 学科: 农学
• 关键词: 茶叶产量 宣城地区 低温度 单位面积产量 日平均气温 日照时数 气象产量 降水量
• 年，卷（期）: 2014,（2）
• 页码范围: 48-49
• 页数: 2页
• 分类号: S571.1

摘要

Data of daily mean temperature,precipitation,sunshine hours and tea yield in Xuancheng area from 1979 to 2008 were used to analyze the relationship between lower temperature in spring and tea yield. The results showed during 1979- 2008,the per unit area yield of tea in Xuancheng area fluctuated greatly in various years. The relative meteorological yield of tea changed greatly during 1979- 2008,and the decrease in tea yield occurred frequently over the past 30 years. Over the past 30 years,the probability of lower temperature in spring was 56. 7%,and the probability of serious and extremely serious lower temperature in spring was 43. 4%. In each off year with decrease in tea yield,medium or above lower temperature in spring occurred,showing that the impact of lower temperature in spring on tea yield was very obvious.