南阳市丹桂开花与气温的关系研究  

Study on the Relationship Between Flowering of Orange Osmanthus and Temperature in Nanyang City

作　　者：王宇翔 李树岩[2,3] 易伟霞 Wang Yuxiang;Li Shuyan;Yi Weixia(Nanyang Meteorological Office,Nanyang 473000,China;Henan Key Laboratory of Agrometeorological Support and Applied Technique,CMA,Zhengzhou 450003,China;Henan Institute of Meteorological Sciences,Zhengzhou 450003,China)

机构地区：[1]南阳市气象局,河南南阳473000 [2]中国气象局·河南省农业气象保障与应用技术重点开放实验室,郑州450003 [3]河南省气象科学研究所,郑州450003

出　　处：《气象与环境科学》2023年第3期65-71,共7页Meteorological and Environmental Sciences

基　　金：中国气象局·河南省农业气象保障与应用技术重点开放实验室应用技术研究基金项目(KM202354)。

摘　　要：桂花开花日期预测是合理安排采花生产、桂花节会的重要依据。根据2016-2021年南阳市丹桂开花日期观测资料和逐日气温数据,采用对比分析和相关分析的方法,对丹桂开花与气温的关系进行了研究。结果表明:丹桂开花前的相对低温以日最高气温的表达形式最佳。相对低温的阈值为日最高气温为23.0℃,丹桂开花前的相对低温条件为日最高气温低于23.0℃1天以上。丹桂开花一次性开完的相对低温过程条件是日最高气温低于23.0℃的负有效积温超过6.5℃·d。若日最高气温低于23.0℃的负有效积温少于3.2℃·d时,则丹桂开花不能一次性开完。The prediction of Orange Osmanthus flowering data is an important basis for reasonably arranging flower collection and production as well as Osmanthus Fragrans Festival.According to the data of the observed Orange Osmanthus flowering data and daily temperature in Nanyang City from 2016 to 2021,this paper studies the relationship between flowering of Orange Osmanthus and air temperature using the methods of comparative analysis and correlation analysis.The results show that daily maximum temperature is the best indicator to express the relative low-temperature before flowering.The threshold of relative low-temperature is that the daily maximum temperature is 23.0℃,that is,the relative low-temperature condition before the flowering of Orange Osmanthus is the daily maximum temperature less than 23.0℃.The relative low-temperature process condition for the complete flowering of Orange Osmanthus is that the negative effective accumulated temperature of the daily maximum temperature less than 23.0℃ exceeds 6.5℃·d.If the negative effective accumulated temperature of daily maximum temperature less than 23.0℃ is lower than 3.2℃·d,the flowering of Orange Osmanthus cannot bloom all at one time.

关 键 词：丹桂 开花日期 日最高气温 相对低温过程 开花多批 负有效积温 

分 类 号：S685.13[农业科学—观赏园艺] S160.5[农业科学—园艺学]