干旱区生态环境知识资源中心(Arid): 近50年岷江上游潜在蒸散量的时空变化特征

Arid

	近50年岷江上游潜在蒸散量的时空变化特征
其他题名	Spatio - temporal variation of potential evapotranspiration in upper Min River Basin during 1961 - 2010
	牛晓俊; 冯文兰; 闾利; 黄宇倩; 郑杰
来源期刊	干旱区资源与环境
ISSN	1003-7578
出版年	2016
卷号	30 期号:12 页码:122-128
中文摘要	潜在蒸散量的变化对水分循环与能量平衡均具有重要的意义。文中利用1961 - 2010年岷江上游及周边20个气象站的逐日气象资料,采用地形矫正的Hargreaves模型计算了潜在蒸散量,并结合小波分析和M - K突变检测方法分析了其时间序列变化特征。结果表明:岷江上游潜在蒸散量呈现由西北向东南逐渐上升的趋势;年潜在蒸散量以12a为准周期变化,潜在蒸散量呈现出波动中上升的趋势,尤其是90年代以来,上升趋势更为明显;而区域内年降水量呈现明显的下降趋势。岷江上游暖干化趋势明显,尤其是近20年,暖干化趋势加剧,生态环境受到严重威胁。
英文摘要	The change of potential evapotranspiration has important significance for water cycle and energy balance. In this researchthe daily climatic data of 20 weather stations on the upper Min River Basin and peripheral areas from 1961 to 2000 were used to calculate potential evapotranspiration by using Hargreaves model which was corrected based on the terrain and climate conditions of Sichuan. The characteristics of time series range of PE was analyzed by Mexican Hat Wavelet and Mann - Kendall abrupt change test. The results showed that: it had upward trend from northwest to the southeast in the upper Min River Basin; the annual potential evapotranspiration was quasi - periodic oscillations of 12 years; it had an obvious upward trend since the 90’s. The upper Min River Basin had distinct warming and drying trend,especially in the recent 20 years,the worse trend of arid and warm was serious threat to the ecological environmental safety.
中文关键词	气候变化 ; 潜在蒸散量 ; Hargreaves模型 ; 变化趋势 ; 岷江上游
英文关键词	climate change potential evapotranspiration Hargreaves Model change trend the upper Min River Basin
语种	中文
国家	中国
收录类别	CSCD
WOS类目	METEOROLOGY ATMOSPHERIC SCIENCES
WOS研究方向	Meteorology & Atmospheric Sciences
CSCD记录号	CSCD:5874725
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/234399
作者单位	成都信息工程大学资源环境学院, 成都, 四川 610225, 中国
推荐引用方式 GB/T 7714	牛晓俊,冯文兰,闾利,等. 近50年岷江上游潜在蒸散量的时空变化特征[J],2016,30(12):122-128.
APA	牛晓俊,冯文兰,闾利,黄宇倩,&郑杰.(2016).近50年岷江上游潜在蒸散量的时空变化特征.干旱区资源与环境,30(12),122-128.
MLA	牛晓俊,et al."近50年岷江上游潜在蒸散量的时空变化特征".干旱区资源与环境 30.12(2016):122-128.