摘要
【目的】辣椒的移栽期与采摘期是辣椒生长发育至关重要的环节,为了探究贵州辣椒适宜移栽期与采摘期的分布规律。【方法】利用1980—2020年贵州省84个国家常规地面观测站的逐日平均气温等资料,基于5 d滑动平均法、相关分析法、回归拟合法,分析了贵州省1980—2020年辣椒适宜移栽期和采摘期的时空分布特征。【结果】(1)贵州省辣椒适宜移栽期地区差异较大,变化范围为2月27日—5月7日,空间分布存在明显的区域差异,呈自西北向东南逐渐递减的趋势,其主要原因是海拔高度差异较大。近40 a移栽期随时间变化,所选的8个站点中,罗甸、榕江、威宁、毕节通过了0.05显著性水平检验。(2)贵州省辣椒采摘期地区差异较大,变化范围为7月30日—10月19日,空间分布存在明显的区域差异,呈自西北向南逐渐递增的趋势,其主要原因是海拔高度差异较大。近40 a采摘期随时间变化,所选8个站点里,只有威宁、毕节2个站点通过了0.05的显著性水平检验。【结论】由于贵州海拔高度的不同,辣椒适宜移栽期与采摘期呈现不同规律,1980—2020年辣椒移栽期主要集中在3月末—4月中旬,采摘期主要集中在9月初—10月初。
The transplanting period and picking period of pepper are crucial links for the growth of pepper.In order to investigate the distribution law of the appropriate transplanting period and picking period for pepper,this paper uses the daily average temperature data from 84 national conventional ground observation stations in Guizhou Province during 1980-2020 and the five-day sliding average method,correlation analysis method and regression fitting method and analyzes the spatio-temporal distribution characteristics of suitable transplanting period and picking period for pepper in Guizhou Province from 1980 to 2020.The results are as follows:(1)The suitable transplanting period of pepper in Guizhou Province varies greatly from February 27 to May 7,and the spatial distribution shows obvious regional differences,gradually decreasing from northwest to southeast,which is mainly caused by the large difference in altitude.In the past 40 years,the transplanting period changed with time.Among the eight sites selected,four have passed the significance test at the level of 0.05,namely,Luodian,Rongjiang,Weining and Bijie stations.(2)The picking period of pepper in Guizhou Province also has great regional differences,varying from July 30-October 19.Its spatial distribution is distinct regionally as well,gradually increasing from northwest to south due to the great difference in altitude.During the past 40 years,the picking period changed with time,too.Among the eight selected sites,only 2 sites(Weining and Bijie stations)have passed the significance test at the level of 0.05.Due to the different altitude of Guizhou province,the suitable transplanting period and picking period of pepper show different rules.From 1980 to 2020,the transplanting period of pepper is mainly concentrated in late March to mid-April,and the picking period is mainly concentrated in early September to early October.
作者
张晏宁
张欣旭
袁淑杰
巩远发
田琪琪
ZHANG Yanning;ZHANG Xinxu;YUAN Shujie;GONG Yuanfa;TIAN Qiqi(School of Atmospheric Sciences,Chengdu University of Information Technology,Chengdu 610225,China)
出处
《山地气象学报》
2024年第3期91-95,共5页
Journal of Mountain Meteorology
关键词
贵州
辣椒
辣椒移栽期
辣椒采摘期
时空分布
Guizhou Province
pepper
transplanting period
picking period
spatial and temporal distribution
