摘要
采用多元回归和方差分析方法，对广东省１９５４～１９９３年１～１２月５０个区域的平均降水序列进行了非线性趋势和周期特征分析，结果表明：广东省各月降水序列的变化趋势除个别月份外总的来说是不明显的．但周期变化特征相对比较明显，夏季月份２、３年的周期特征较为显著；春秋季月份有５年或以上的周期表现；冬季月份的周期性最差．
Nonlinear trend and periodic characteristics of monthly mean precipitation in each region over Guangdong Province from Jan to Dec were studied, by using the methods of multiple variables regression and variance analysis. The results are: The trend in all regions is generally less significant than its period. Specially there are 2 or 3 years period characters in summer months , and 5 or large than 5 years period in spring and autumn months , but in winter months the characters of period are weaker.
出处
《中山大学学报（自然科学版）》
CAS
CSCD
北大核心
1998年第S2期126-129,共4页
Acta Scientiarum Naturalium Universitatis Sunyatseni
关键词
方差分析
趋势
周期
variance analysis, trend, period
