沙漠与绿洲气象2024，Vol.18Issue(3)：165-173,9.DOI:10.12057/j.issn.1002-0799.2024.03.022
1961-2020年新疆棉花苗期低温冷害时空变化特征研究
Spatiotemporal Variation Characteristics of Low Temperature Chilling Injury during Cotton Seedling Stage in Xinjiang from 1961 to 2020
摘要
Abstract
This study was based on daily ground meteorological observation data,historical disaster situation data,and crop production data from 101 meteorological stations in Xinjiang cotton planting areas from 1961 to 2020.The indicators of low temperature and cold damage during cotton seedling stage in Xinjiang region were screened and validated.Linear trend analysis,spatial interpolation analysis,and M-K trend analysis were used to analyze the trends at a chronological scale.The spatiotemporal distribution and variation characteristics of the frequency and intensity of low temperature chilling injury during cotton seedling stage in Xinjiang were analyzed on an interannual and phenological scale system.The main research results were as follows:the chilling injury during cotton seedling stage in Xinjiang was mainly mild,followed by moderate,and the frequency of chilling injury at each level showed a spatial distribution pattern of high in the north and low in the south.The frequency and frequency of cold damage in northern and southern Xinjiang showed a gradually decreasing trend with the passage of phenology.The frequency of cold damage in northern and southern Xinjiang was higher in April 6th and April 4th,respectively.In the past 60 years,the occurrence days,intensity,and station frequency of low temperature cold damage in cotton seedlings in Xinjiang had shown a decreasing trend.In the 1980s,cold damage was the most severe,and compared to the frequercy over the period from 1961 to 1990,the station frequency of cold damage in the period from 1991 to 2020 had decreased.关键词
棉花/低温冷害/时空特征/新疆Key words
cotton/low temperature chilling injury/spatiotemporal characteristics/Xinjiang分类
农业科技引用本文复制引用
赵金媛,胡琦,周建朔,姜婧妍,张丽娜,王雪姣,张山清,王森,潘学标..1961-2020年新疆棉花苗期低温冷害时空变化特征研究[J].沙漠与绿洲气象,2024,18(3):165-173,9.基金项目
新疆维吾尔自治区重点研发计划(2022B02001-1) （2022B02001-1）
新疆维吾尔自治区自然科学基金(2022D01B06) （2022D01B06）
