摘要
根据大量的实测数据 ,利用模糊分级统计法和新提出的等密图统计法 ,经分析得到两点认识 :( 1)自然灾害多数出现在节气日附近 ;( 2 )自然灾害多数出现在节气之间的黄金分割日附近。
According to a lot of measured data and by the statistical method of fuzzy grade and the statistical method of isodensity graph put forward presently, two conclusions are reached as follows: (1)natural calamities often occur nearby solar terms; (2)natural calamities often occur nearby golden section day between solar terms.
出处
《地理学与国土研究》
CSSCI
CSCD
2000年第4期59-62,共4页
Geography and Territorial Research
关键词
自然灾害
模糊频数
频发期
节气
黄金分割日
natural calamities
fuzzy frequency
frequently occurring date
solar terms
golden section day
