摘要
利用江苏海涂区域22个代表站1971～2006年年平均降水资料和年平均气温资料,用EOF展开分析时空变化的差异;再用方差分析、气候趋势系数和线性回归等方法,得到海涂区域降水和温度空间分布的主要形态和特征。结果表明:整个海涂区域年平均气温周期性明显,36年来气温有明显的上升趋势;整个区域降水呈东南向西北递增的分布,高荷载主要位于连云港到盐城的北部区域;一致增加的分布类型的次数增加对海涂区域年平均气温的升高贡献较大,是气温持续上升的主要原因。此外,海涂区域降水和温度在纬向和经向之间也存在分布差异。
Using 22 tidal marsh area stations＇ data of annual mean precipitation and temperature from 1971 to 2006 in Jiangsu Province,major characters of spatial distribution of precipitation and temperature were studied with EOF analysis,variance analysis,trend coefficient and linear regression technique.Results showed that annual mean temperature was evident with an ascendant trend and marked period in 36 years,while annual mean precipitation was severely uneven with an increasing trend from southeast to northwest and the highest rainfall occured in north area of Lianyungang and Yancheng.The increasing times of patten of unanimous increasing contributed to annual mean temperature increment.Besides,the character of precipitation and temperature showed differences in zonal and meridional directions in tidal marsh area.
出处
《安徽农业科学》
CAS
北大核心
2010年第5期2461-2463,2478,共4页
Journal of Anhui Agricultural Sciences
基金
江苏省科技厅社会发展项目(BS2006556)
关键词
海涂区域
气候
空间分布
时间变化
Tidal marsh area
Climate
Spatial distribution
Time change
