[1]文建川,梁平,廖育玲,等.基于相对湿润度指数的黔东南州干湿状况[J].江苏农业学报,2023,(04):989-995.[doi:doi:10.3969/j.issn.1000-4440.2023.04.008]
　WEN Jian-chuan,LIANG Ping,LIAO Yu -ling,et al.Arid and moist conditions in Qiandongnan Miao and Dong Autonomous Prefecture based on relative moisture index[J].,2023,(04):989-995.[doi:doi:10.3969/j.issn.1000-4440.2023.04.008]
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基于相对湿润度指数的黔东南州干湿状况()
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江苏农业学报[ISSN:1006-6977/CN:61-1281/TN]

卷:
期数:
2023年04期
页码:
989-995
栏目:
耕作栽培·资源环境
出版日期:
2023-08-30

文章信息/Info

Title:
Arid and moist conditions in Qiandongnan Miao and Dong Autonomous Prefecture based on relative moisture index
作者:
文建川1; 梁平2; 廖育玲1; 吴慧1; 李春生3; 宋光勇2
（1.贵州省从江县气象局,贵州从江557400；2.贵州省黔东南州气象局,贵州黔东南556000；3.贵州省黎平县气象局,贵州黎平557300）
Author(s):
WEN Jian-chuan1; LIANG Ping2; LIAO Yu -ling1; WU Hui1; LI Chun-sheng3; SONG Guang-yong2
(1.Meteorological Bureau of Congjiang County, Guizhou Province, Congjiang 557400，China;2.Meteorological Bureau of Qiandongnan Miao and Dong Autonomous Prefecture, Qiandongnan 556000， China;3.Meteorological Bureau of Liping County, Guizhou Province, Liping 557300，China）
关键词:
Penman-Monteith; 湿润度指数; 干湿状况; 时空变化
Keywords:
Penman-Monteith; wetness index; arid and moist condition; temporal and spatial variation
分类号:
S161.3；P467
DOI:
doi:10.3969/j.issn.1000-4440.2023.04.008
文献标志码:
A
摘要:
了解黔东南州干湿变化特征，为应对气候变化风险和当地农业生产安排提供科学依据。基于黔东南州16县（市）1974-2020年逐日气象数据，采用Penman-Monteith公式计算蒸散量，并结合降水量推算出相对湿润度指数(IRM)，分析其不同时间尺度特征并对比其在雨季和非雨季的时空变化差异。结果表明，除个别年份外，黔东南州年平均及各年代降水量均显著大于蒸散量，IRM大于0，气候总体较为湿润。不同月份的IRM差异显著，4-6月IRM较其余月份明显要大，8月、9月及12月的IRM小于0，发生气象干旱的潜势高。IRM存在较大的季节和空间性差异，雨季IRM明显大于非雨季，各县（市）雨季IRM为6.0%～650%，非雨季IRM为-20.4%～251%，州北部和南部季节性干旱显著。
Abstract:
Characteristics of arid and moist changes of Qiandongnan Miao and Dong Autonomous Prefecture was studied to provide a scientific basis for dealing with climate change risks and arranging local agricultural production Penman-Monteith formula was used to calculate evapotranspiration based on daily meteorological data of 16 counties (cities) in Qiandongnan Miao and Dong Autonomous Prefecture from 1974 to 2020, and relative moisture index (IRM) was calculated by combination of Penman-Monteith formula with precipitation, so as to analyze the characteristics of different time scales and to compare the differences of temporal and spatial changes in rainy season and non-rainy season The results showed that, except for a few years, the annual average precipitation and annual precipitation of Qiandongnan Miao and Dong Autonomous Prefecture were significantly higher than evapotranspiration, the IRM was above 0, and the climate was generally humid The IRM of different months showed significant differences, the IRM in April to June was obviously higher than the other months The IRM was below 0 in August, September and December, and the potential of occurring meteorological drought was high The IRM showed great differences between different seasons and different spaces, and the IRM in rainy season was obviously higher than in non-rainy season The IRM of each county (city) in rainy season was 60%-650%, and the IRM in non-rainy season was -204%-251%, seasonal drought in northern and southern prefectures was significant

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备注/Memo

备注/Memo:
收稿日期：2022-08-22 基金项目：贵州省气象局科研业务项目[黔气科登（2022）04-12号] 作者简介：文建川（1994-），女，四川泸县人，硕士，助理工程师，从事农业气象服务研究。（E-mail）1558960137@qq.com
更新日期/Last Update: 2023-09-12