20世纪50年代以来陕甘宁地区旱情分析  

Analysis of Drought Disease in Shaanxi-Gansu-Ningxia Region Since 1950s

作　　者：王晓冬[1] 李瑞英[2] 

机构地区：[1]内蒙古科技大学高等职业技术学院,内蒙古包头014010 [2]内蒙古包头市国土资源局,内蒙古包头014010

出　　处：《内蒙古师范大学学报（自然科学汉文版）》2008年第4期554-557,共4页Journal of Inner Mongolia Normal University(Natural Science Edition)

摘　　要：采用陕甘宁地区41个县市1951-2000年的降水及气温资料,分析了20世纪50年代以来陕甘宁地区气温、降水的变化趋势及厄尔尼诺、拉尼娜事件与干旱的关系.结果显示,陕甘宁地区降水与气温存在明显的负相关性,厄尔尼诺和拉尼娜事件与干旱的发生有一定的相关性.The changing tendency of temperature and precipitation is analyzed as well as relationship of El-nino and La-nina and drought since 1950s, the results indicate that there is positive correlate between climatic warm and drought, El-nino and La-nina are closely related with the occurrence or prevalence of drought disease.

关 键 词：干旱 厄尔尼诺 拉尼娜 陕甘宁地区 

分 类 号：P426.216[天文地球—大气科学及气象学]