内乡县衙丹桂树开花时间与气温的关系浅析  

Analysis of Relationship between Flowering Time and Temperature of Osmanthus Trees In Neixiang County Yamen

作　　者：张丽梅 王宇翔 Zhang Li-mei(Nanyang Meteorological Bureau,Nanyang,Henan 473000)

机构地区：[1]南阳市气象局,河南南阳473000

出　　处：《农业灾害研究》2023年第12期204-206,共3页Journal of Agricultural Catastrophology

摘　　要：内乡县衙有两棵丹桂树,有七百多年的树龄。根据部分年份内乡县衙丹桂树开花记录与内乡县气象站气象数据进行相关分析,研究内乡县衙丹桂树开花与日最高气温的关系。结果显示:(1)内乡县气象站日最高气温≤23.5℃低温过程的开始日期后2~11 d,内乡县衙丹桂树开花,开花时间Y与日最高气温≤23.5℃低温过程的开始日期X为极显著的直线相关关系,回归关系式为Y=10.369+0.9295X。(2)内乡县气象站日最高气温≤23.5℃负有效积温≤48.9℃·d,其后内乡县衙丹桂开花为非最后一批次;日最高气温≤23.5℃负有效积温≥101.1℃·d,其后内乡县衙丹桂开花为最后一批次;内乡县气象站日最高气温≤23.5℃低温过程每年有2~4个,内乡县衙丹桂每年开花2~4批次的记录占比极高,两者相关关系密切。There were two osmanthus trees in the Neixiang County Government,which were over 700 years old.Based on the flowering records of osmanthus trees in some years in Neixiang County and the meteorological data from Neixiang County Meteorological Station,a correlation analysis was conducted to study the relationship between the flowering of osmanthus trees in Neixiang County and the daily maximum temperature.The results showed that:(1)2 to 11 d after the start date of the daily maximum temperature of 23.5℃of the low temperature process,the trees in Neixiang county bloom,the flowering time Y and the beginning date X of the daily maximum temperature of 23.5℃,and the regression relationship was Y=10.369+0.9295X.(2)The daily maximum temperature of Neixiang County weather station was 23.5℃negative effective accumulated temperature 48.9℃·d,then the flowering was not the last batch;the daily maximum temperature was 23.5℃negative effective accumulated temperature 101.1℃·d,then the flowering of Neixiang county was the last batch;the daily maximum temperature was 2~4 per year,and the record of 2~4 batches of flowering is extremely high,and the two were closely related.

关 键 词：内乡县衙 丹桂树 开花 日最高气温 负有效积温 

分 类 号：Q949.776.2[生物学—植物学]