中国农业科学院农业信息研究所 中国农学会
Agricultural Information Institute of CAAS China Association of Agricultural Science Societies
En
Ch
中国农业科学院农业信息研究所 中国农学会 主办

AI检索

订阅

返回顶部
当前位置: 首页 > 文章 > 相对冷暖背景下两次干旱事件的比较——以陕西为例 干旱地区农业研究 2012,30 (1) 238-245
Position: Home > Articles > Comparison of two drought events on relatively warm and cold climate background——A case study in Shaanxi Province Agricultural Research in the Arid Areas 2012,30 (1) 238-245

相对冷暖背景下两次干旱事件的比较——以陕西为例

作  者：
李星敏;杨文峰;李红梅;袁媛;乔丽
单  位：
陕西省气象科学研究所;陕西省气象局;陕西省气象台;陕西省农业遥感信息中心
关键词：
干旱事件;冷期;暖期
摘  要：
利用陕西省气象观测站气温和降水资料、干旱灾害记述资料,根据年旱涝等级、降水距平百分率以及CI干旱指数的分布与变化,分析比较了冷期1965—1966年干旱和暖期1994—1995年干旱的范围、程度以及干旱过程演变的异同。结果表明,冷暖背景下均会出现连续的干旱,当暖期与降水减少相遇时,出现的干旱更为严重;处于干旱半干旱区的陕北,干旱过程往往持续时间较长,处于半湿润区和湿润区的关中、陕南,干旱时段内往往会出现多个干旱过程。陕北1994—1995年的干旱天数少于1965—1966年,而关中、陕南1994—1995年的干旱天数多于1965—1966年,同一干旱事件在各地会呈现出不同的特点。
译  名：
Comparison of two drought events on relatively warm and cold climate background——A case study in Shaanxi Province
作  者：
LI Xing-min1,YANG Wen-feng2,LI Hong-mei3,YUAN Yuan4,QIAO Li2(1.Shaanxi Institute of Meteorological Sciences,Xi'an,Shaanxi 710014,China;2.Shaanxi Meteorological Service,Xi'an,Shaanxi 710014,China;3.Shaanxi Remote Sensing Information Center for Agriculture,Xi'an,Shaanxi 710014,China;4.Shaanxi Meteorological Observatory,Xi'an,Shaanxi 710014,China)
关键词：
drought event;cold period;warm period
摘  要：
On the background of climate change,the meteorological disaster change has got wide attention.Based on temperature and the precipitation data from weather stations in Shaanxi Province,this paper analyses the similarities and differences of two drought events,of which one occurred in 1960s when it was relatively cold climate,and the other occurred in 1990s when it was relatively cold climate,according to the drought waterlogging rank,precipitation anomalous percentage as well as CI drought index.The results show that continuous drought may occur in either cold climate period or warm climate period.When drought occurrs in warm climate period,it will be more serious.The duration of a drought event is often longer in northern Shaanxi which is in semiarid region,while a drought event usually includes several drought processes in the central and southern parts of the province which are in subhumid and humid region.The days of drought occurred in 1994—1995 are less than those in 1965—1966 in northern Shaanxi.But in the central and southern parts of the province,the days of drought occurred in 1994—1995 are more than those in 1965—1966.Drought occurred in ddifferent areas show different characteristics.

相似文章

导出引用
计量
文章访问数: 13
HTML全文浏览量: 0
PDF下载量: 0

所属期刊

推荐期刊

友情链接Friendly link
农业信息研究所Agricultural information institute 农业智能知识服务平台Agricultural intelligent knowledge service platform 农业学术服务平台Agricultural Knowledge Service System 中国知网CNKI 维普网VIP 万方WANFANG DATA
联系我们Contact us

电话Tell：010-82109652-808

邮箱E-mail：agrijournal@caas.cn

服务Service
关于我们About us 意见建议Opinions and suggest
版权说明Copyright
单位：中国农业科学院农业信息研究所 中国农学会 © 2017中国农业科学院农业信息研究所 ICP备案号：京ICP备09089781号-46