日照市春秋播期间降水概率和春秋播进度分布特征  

Distribution Characteristics of Precipitation Probability and Spring and Autumn Sowing Schedule during Spring and Autumn Sowing in Rizhao City

作　　者：李斌 宋佰春 成兆金 LI Bin;SONG Baichun;CHENG Zhaojin(Rizhao Meteorological Bureau,Rizhao Shandong 276826,China)

机构地区：[1]日照市气象局,山东日照276826

出　　处：《农业工程》2023年第12期60-65,共6页AGRICULTURAL ENGINEERING

基　　金：日照市气象局科学技术研究项目(2022 rzqxm05)。

摘　　要：根据1951—2020年近70年山东省日照市3个气象观测站的逐日降水观测资料,以及2011—2018年日照市农业农村局春秋播进度资料,采用趋势分析、概率统计等方法,得出该地区4—5月春播期间、10—11月秋播期间降水概率分布特征和春秋播进度分布特征,建立气候变化背景下日照市的春秋播期间精细化的最佳播期。结果表明,日照市春播适宜时期,东港区在4月20日、5月11日,莒县在4月30日、5月11日,五莲县在4月20日、5月29日,较为合适;秋播适宜时期,东港区在10月9—10、13和20—21日,莒县在10月11和13日,五莲县在10月3、5和9—10日较为合适,春秋播进度与期间日降水量相关性较大。精细化播种时期的确定,对当地春秋播期间农业生产起到积极的指导作用。Based on daily precipitation observation data of three meteorological observation stations in Rizhao City,Shandong Province from 1951 to 2020 and spring and autumn sowing progress data of Rizhao Agriculture and Rural Affairs Bureau from 2011 to 2018,trend analysis,probability statistics and other methods were adopted.Distribution characteristics of precipitation probability during spring sowing from April to May,autumn sowing from October to November and distribution characteristics of spring and autumn sowing schedule in this region were obtained,and the refined best sowing time during spring and autumn sowing in Rizhao City,Shandong Province was established under background of climate change.Results showed that suitable dates for spring sowing in Rizhao City were April 20 and May 11 in Donggang District,April 30 and May 11 in Juxian County,and April 20 and May 29 in Wulian County.The suitable period for autumn sowing was October 9-10,13,20-21 in Donggang District,October 11,1-3 in Juxian County,and Octo-ber 3,5,9-10 in Wulian County.Sowing progress in spring and autumn was significantly correlated with daily precipitation during the period.Determination of fine sowing time plays a positive role in guiding agricultural production during local spring and autumn sowing.

关 键 词：降水量 概率分布 播种进度 播种时期 日照市 

分 类 号：S16[农业科学—农业气象学]