干旱区生态环境知识资源中心(Arid): 黄淮海流域近50年气候分区时空演变特征

Arid

	黄淮海流域近50年气候分区时空演变特征
其他题名	Spatial-temporal evolution characteristics of climate division in Huang-Huai-Hai River Basin for recent 50 years
	董国强 1; 杨志勇 2; 袁喆 2
来源期刊	水利水电技术
ISSN	1000-0860
出版年	2014
卷号	45 期号:8 页码:5-10
中文摘要	根据黄淮海流域及其周边地区204个气象站点1961 ~2010年(50年)的逐日气象资料,计算了干燥度中的潜在蒸散项,并在此基础上使用克里格(Kriging)插值法生成黄淮海流域干燥度和气候分区,分析近50年黄淮海地区基于干燥度的气候分区的时空演变特征。研究结果显示:(1)自1961 年以来,黄淮海流域干燥度呈缓慢波动增大趋势,但增幅较小,其多年平均值为2.46,年干燥度在1998年前后有显著突变;(2)利用干燥度指数将黄淮海流域划分为湿润、半湿润、半干旱和干旱4个干湿气候区,近50年来半干旱区与其他干湿气候类型区之间的干湿度差异有逐渐加大的趋势;(3) 从空间尺度上看,全流域干燥度总的特点是北大南小,呈现由北向南逐渐递减趋势。
英文摘要	Based on the daily climatic data from 204 meteorological stations within the Huang-Huai-Hai River Basin and its surrounding areas from 1961 to 2010, the potential evapotranspiration in the aridity index is calculated, and then on the basis of this, the aridity index and the climate division of the basin are created with the Kriging interpolation method,meanwhile the spatial-temporal evolution characteristics of the aridity index based climate division of the region for the recent 50 years are analyzed as well. The study result shows that (1) since 1961, the aridity index in the Huang-Huai-Hai River Basin shows an increasing trend with a slow fluctuation,but the increasing amplitude is less, while the average aridity index is 2. 46 with a significant mutation around 1998; (2)based on the aridity index, the Huang-Huai-Hai River Basin is divided into four climatic zones, i. e. humid,sub-humid, arid and semi-arid, while a gradually increasing trend of the arid-humid difference is there between the semi-arid zones and the other arid-humid zones for the recent 50 years ; (3) in view of the spatial scale, the general characteristics of the aridity index of the whole basin is large in north and less in south with a gradually decreasing trend from north to south.
中文关键词	黄淮海流域 ; 干燥度指数 ; 时空演变 ; 气候分区
英文关键词	Huang-Huai-Hai River Basin aridity index spatial-temporal evolution climate division
语种	中文
国家	中国
收录类别	CSCD
WOS类目	AGRICULTURE MULTIDISCIPLINARY ; METEOROLOGY ATMOSPHERIC SCIENCES
WOS研究方向	Agriculture ; Meteorology & Atmospheric Sciences
CSCD记录号	CSCD:5214184
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/231706
作者单位	1.东华大学环境科学与工程学院, 流域水循环模拟与调控国家重点实验室, 上海 201620, 中国; 2.中国水利水电科学研究院, 流域水循环模拟与调控国家重点实验室, 北京 100038, 中国
推荐引用方式 GB/T 7714	董国强,杨志勇,袁喆. 黄淮海流域近50年气候分区时空演变特征[J],2014,45(8):5-10.
APA	董国强,杨志勇,&袁喆.(2014).黄淮海流域近50年气候分区时空演变特征.水利水电技术,45(8),5-10.
MLA	董国强,et al."黄淮海流域近50年气候分区时空演变特征".水利水电技术 45.8(2014):5-10.