扬州大学学报（农业与生命科学版）2024，Vol.45Issue(4)：116-123,8.DOI:10.16872/j.cnki.1671-4652.2024.04.015
宁乡烟区界限气温及生育期气温变化特征研究
Study on the variation characteristics of boundary temperature and growth period temperature in Ningxiang tobacco area
摘要
Abstract
Based on the daily meteorological observation data of Ningxiang from 1991 to 2020,the variation character-istics of boundary temperature and growth period temperature in Ningxiang tobacco region were analyzed by trend analysis and Mann-Kendall mutation detection.The results show that:① In recent 30 years,the first day when the temperature was stable through 8 and 13 ℃ is significantly advanced,and the number of days when the daily average temperature is less than 8 and 13 ℃ was significantly reduced;The first day when the maximum temperature exceeded 35 ℃ was signifi-cantly advanced,and the number of days when 35 ℃ appears is increasing.② The average temperature in the root exten-sion stage,the long-term average temperature and the mature stage average temperature all showed an increasing trend,and the linear fitting tendency rates per 10-year reached 1.51,0.57 and 1.18 ℃ respectively.Among them,the average temperature changes in the root extension stage and the mature stage reached a significant level,and mutations occurred after 1999 and 2007 respectively.In general,the rise of temperature in the root extension period and the advance of the first day through 8 and 13 ℃ in Ningxiang tobacco area will be conducive to the early growth and rapid development of flue-cured tobacco,while the rise of temperature in the maturity period and the advance of the first day of 35 ℃ will in-crease the risk of high temperature forced ripening of flue-cured tobacco;According to the above changes,it is necessary to optimize the phenological period of flue-cured tobacco production on the basis of experiments.关键词
烤烟/界限温度/生育期温度/变化特征Key words
flue-cured tobacco/boundary temperature/temperature during growth period/variation characteristics分类
农业科技引用本文复制引用
向世鹏,龙大彬,李强,彭煜,杨佳蒴,周世民,何命军,翟争光,钱秋芳,陈治锋,谢鹏飞..宁乡烟区界限气温及生育期气温变化特征研究[J].扬州大学学报（农业与生命科学版）,2024,45(4):116-123,8.基金项目
中国烟草总公司科技项目(110202101037、110202103011) （110202101037、110202103011）
湖南省烟草公司长沙市公司(20-24A01、21-24A03) （20-24A01、21-24A03）
