globalchange  > 气候变化与战略
CSCD记录号: CSCD:5289703
论文题名:
1960-2013年中国东南沿海地区旱涝时空变化特征及其趋势分析
其他题名: Spatial-Temporal Variation and the Tendency of Droughts and Floods on the Southeast Coast of China over 54 Years
作者: 王米雪1; 延军平1; 李双双2
刊名: 资源科学
ISSN: 1007-7588
出版年: 2014
卷: 36, 期:11, 页码:1277-1279
语种: 中文
中文关键词: 旱涝 ; 标准化降水蒸散指数 ; 时空变化 ; 东南沿海
英文关键词: droughts and floods ; SPEI ; spatial-temporal variation ; southeast coast of China
WOS学科分类: MULTIDISCIPLINARY SCIENCES
WOS研究方向: Science & Technology - Other Topics
中文摘要: 采用气候倾向率、标准化降水蒸散指数(SPEI)和Mann-Kendall 趋势分析等气候诊断方法,分析了1960-2013年我国东南沿海地区旱涝灾害的时空变化特征。结果表明:①近54年东南沿海地区气候暖化趋势明显,增温速率从南向北逐渐增加,浙江增温明显高于广东,降水稳定波动,并未表现出明显的线性增长;②近54年东南沿海地区旱涝变化具有明显的阶段性,20世纪60年代以旱灾为主,70年代涝灾频率呈上升趋势,80年代旱涝频次大致相当,90年代旱灾减少,极端涝灾增多,2000-2013年正常年份逐渐减少,旱灾大幅增加;③在空间分布上,东南沿海旱涝频次具有明显的地域分异,旱灾呈现为南少北多的格局,广东西南沿海、福建北部以及浙江南部旱灾频次相对较高;涝灾表现出南重北轻的格局,雷州半岛,福建建瓯、德化、龙岩等地和浙江东部地区更易发生涝灾;④在空间变化趋势上,历史上旱灾频次较低、涝灾频次较高的华南地区趋于干旱,旱灾频次较高、涝灾频次较低的北部地区趋于湿润;不同地区旱涝变化的季节响应存在差异,粤北以春冬旱为主,闽南以春秋旱为主,浙江北部全年均呈现湿润趋势;⑤在区域尺度上,东南沿海地区旱涝灾害与气候暖化并不同步,广东气温增幅相对较小,降水变化平稳,区域旱灾频次明显上升;浙江增温幅度最为明显,但是并未呈现干旱化趋势,相反涝灾呈现增加趋势。
英文摘要: Using the climate tendency rate,Standardized Precipitation Evapotranspiration Index(SPEI)and Mann-Kendall trend test,we investigated spatial-temporal characteristics of droughts and floods from 1960 to 2013 on the southeast coast of China. We found that climate had an obvious warming trend,and the temperature rising rate increased from south to north,which resulted in Zhejiang being significantly warmer than Guangdong. Precipitation fluctuated stablely and did not follow an obvious linear growth trend. Variation in droughts and floods included several stages:droughts occurred mainly from 1960 to 1970;floods had an increasing trend from 1970 to 1980;droughts were roughly equivalent to floods from 1980 to 1990;droughts decreased and severe floods increased from 1990 to 2000;normal years decreased gradually and droughts increased significantly from 2000 to 2013. A real differentiation between droughts and floods was obvious. Droughts happened more frequently on the coastal parts of southwest Guangdong,in northern Fujian and southern Zhejiang. Floods happened more frequently in Leizhou Peninsula, Jianou,Dehua,Longyan and eastern Zhejiang. The northern section of the southeast coast of China,where floods historically occurred frequently,ended to become dry. The southern section followed the reverse pattern. Seasonal droughts and floods were different in different regions. Droughts and floods and climate warming were out of sync from regional scales. Temperature in Zhejiang increased the most,where it did not tend to be drier but wetter. Temperature in Guangdong rose slowly,while precipitation changed steadily,and there were more regional droughts.
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/148903
Appears in Collections:气候变化与战略

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作者单位: 1.陕西师范大学旅游与环境学院, 西安, 陕西 710062, 中国
2.北京师范大学减灾与应急管理研究院, 地表过程与资源生态国家重点实验室, 北京 100875, 中国

Recommended Citation:
王米雪,延军平,李双双. 1960-2013年中国东南沿海地区旱涝时空变化特征及其趋势分析[J]. 资源科学,2014-01-01,36(11):1277-1279
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