毕伯钧,于系民. 1985. 辽东山区雨日分布特征及其对玉米产量的影响[J]. 气象学报, 43(2):180-187, doi:10.11676/qxxb1985.023
辽东山区雨日分布特征及其对玉米产量的影响
SOME CHARACTERISTICS OF WET DAYS DISTRIBUTIONS AND THEIR EFFECTS ON THE YIELD OF MAIZE IN THE MOUNTAINOUS REGION OF EAST LIAONING PROVINCE
投稿时间:1983-05-13  修订日期:1984-01-24
DOI:10.11676/qxxb1985.023
中文关键词:  
英文关键词:
基金项目:
作者单位
毕伯钧 辽宁省本溪气象台
 
于系民 辽宁省气象科学研究所 
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中文摘要:
      本文利用辽东山区宽甸、桓仁、新宾和清原四个站1956—1975年雨日资料和玉米产量资料,研究了该地区雨日分布特征及其对玉米产量的影响。根据雨日统计结果,提出配合山区雨日数学模型方法,得出ax/c1,ax2/c2,…axi/ci,axn/cn形式的数学模型。依据作物生育期(5—9月)雨日持续期配合玉米产量资料,采用Friedman非参数检验方法,揭示出5天以上雨日序列数对玉米产量有显著影响。
英文摘要:
      In this paper, some characteristics of the wet days distributions and their effects on the yield of maize during 1956-1975 were investigated, for counties Huanren, Xinbin, Qingyuan and Kuandian. A statistical model which fits sequences of wet days in this region was developed and the relation between the wet-day sequences in the growth period (May-Sep.) and the yield was analysed and the effects of sequences with length equal to or greater than 5 days on yields were found significant using Friedman test.
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