摘要
茶叶品质形成与气象条件密切相关，因此开展茶叶气候品质研究具有重要意义。本文基于浙江省2013年基本气象站和区域自动站的逐日气象资料，结合田间试验获取的茶叶品质数据和茶叶生产实际，提出了影响茶叶品质的3个气象指标。应用加权指数求和法，建立了茶叶气候品质评价模型。结果表明：2013年浙江省茶叶生长季茶叶气候品质表现为单峰型变化，气候品质指数在春季3—4月处于相对平缓高值区，指数2.2～2.8，等级1级；5月起开始逐渐下降，最小值出现在盛夏7月—8月中旬，指数0～0.4，等级4级；8月下旬开始逐渐上升，秋季指数0.8～1.6，等级2～3级；2013年浙江省茶叶气候品质空间分布具有区域性，春茶除少数高山地区外，大部地区指数2.2～3.0，等级1级；夏茶大部分地区指数0～0.8，等级3～4级；秋茶，品质指数0.6～1.8，等级2～3级；无论是时间上，还是空间上，茶叶气候品质等级评价与茶叶生产实际基本一致，表现为春茶1级，茶叶品质最优；秋茶其次，品质较优；夏茶品质最差。研究成果可为优化特色农业生产布局提供科学依据。
Tea quality is closely related to climate. Thus, it is significant to evaluate tea quality according to climate. Based on daily meteorological data observed at basic weather stations and automatic weather stations in Zhejiang Province in 2013, field measurement of tea quality indices and actual tea production, three meteorological indices affecting tea quality were proposed in this paper. And then an evaluation model of tea climate quality was established with the exponential weighted algorithm. The results showed that tea climate quality presented a singlepeak variation trend during growing season in 2013. The index of tea climate quality changed smoothly in spring, from 2.2 to 2.8 （level 1） in March and April and decreased from May. The minimum was found in summer （from July to middle August） with the value from 0 to 0.4 （level 4）. After late August, the index increased gradually. The index in autumn was from 0.8 to 1.6 （levels 2 and 3）. The spatial variation of tea climate quality was significant in 2013. Except for mountain areas, the index of spring tea was from 2.2 to 3.0 （level 1） across the province. The index of summer tea was from 0 to 0.8 （levels 3 and 4）, and that of autumn tea was from 0.6 to 1.8 （levels 2 and 3）. The spatial pattern and temporal change of tea climate quality evaluation results were consistent with that of tea production quality. The quality of spring tea （level 1） was better than autumn tea （levels 2 and 3）, while the summer tea was the worst （level 4）. The research results could provide scientific support for optimization of featured agriculture production.
出处
《生态学杂志》
CAS
CSCD
北大核心
2015年第5期1456-1463,共8页
Chinese Journal of Ecology
基金
公益性行业(气象)科研专项(GYHY201306037)
中国气象局气象关键技术集成与应用项目(CMAGJ2013M20)
中国气象局气候变化专项(CCSF201208)
浙江省气象局重点科技项目(2013ZD05)资助
关键词
品质指标
气象指标
气候品质
评价模型
quality index
meteorological index
climate quality
evaluation model.
