干旱区生态环境知识资源中心(Arid): 肃北县戈壁过渡带降水量对气候变化的响应

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	肃北县戈壁过渡带降水量对气候变化的响应
其他题名	Response of Precipitation to Climate Change in Desert Ecotone in Subei County
	王胜; 刘洪兰
来源期刊	干旱区研究
ISSN	1001-4675
出版年	2014
卷号	31 期号:5 页码:898-904
中文摘要	采用肃北气象站19732010年降水量和相关气候要素的实测资料,利用小波分析等统计方法,分析肃北戈壁过渡带降水量对气候变化的响应。结果表明:①近年来,肃北戈壁过渡带降水量呈显著上升趋势,其中年、春季、秋季和冬季降水量距平趋势系数分别为0.260、0.792、0.507和0.063,夏季降水量趋势系数为-1.396,说明夏季降水量有下降的趋势。②通过对降水量的多时间尺度分析发现,小尺度4~5 a的周期存在于20世纪90年代末期以后的时域中,降水量变化表现为3个偏多期和4个偏少期;大尺度10~19 a、30~35 a的周期震荡非常明显,分别经历了偏少偏多6个循环和偏多偏少的交替变化过程。③夏季降水量与气温、日照时数、蒸发量和地表温度均存在着较为显著的响应关系。根据降水量的变化状况,在一定程度上可以反应出其他气象要素的变化规律,它们共同影响着当地的气候变化。气温、日照时数、蒸发量和地表温度随着降水量的变化,均表现出负增长的变化特征,其中蒸发量与降水量的变化关系最为密切,相互的影响也最大,这是因为夏季日照时间长且较强,从而引起了降水量与蒸发量的变化较大。
英文摘要	Based on the observed data of precipitation and related meteorological factors at Subei Meteorological Station during the period of 1973-2010,in this paper the wavelet analysis was used to analyze the response of precipitation to climate change in the desert ecotone in Subei County,Gansu Province. The results are as follows ① Precipitation was significantly increased in the study period,in which the anomaly trend coefficients of annual, spring,autumn and winter precipitation were 0. 260,0. 792,0. 507 and 0. 063 respectively,but that of summer precipitation was-1. 396,which showed that the summer precipitation was in a decrease trend; ② The multipletime and multiple-scale analysis on precipitation revealed that the 4-5 a small-scale period occurred after the late-1990s,precipitation was increased in three periods but decreased in four periods; the periodical fluctuation of 10-19 a and 30-35 a large-scale periods of precipitation was very significant; ③ There was a significant response relationship between precipitation and temperature,sunshine duration,evaporation and surface temperature in summer. The changes of precipitation and other meteorological factors affected jointly the local climate change. The anomalies of air temperature,sunshine duration,evaporation and surface temperature became negative with the increase of precipitation,and evaporation was closely related to precipitation.
中文关键词	降水量 ; 时间尺度 ; 气候 ; 变化 ; 气象要素 ; 戈壁过渡带 ; 肃北 ; 甘肃
英文关键词	precipitation time scale climate change meteorological factor desert ecotone Subei County Gansu Province
语种	中文
国家	中国
收录类别	CSCD
WOS类目	HISTORY
WOS研究方向	History
CSCD记录号	CSCD:5243636
来源机构	中国气象局兰州干旱气象研究所
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/231184
作者单位	中国气象局兰州干旱气象研究所, 甘肃省干旱气候变化与减灾重点实验室;;中国气象局干旱气候变化与减灾重点开放实验室, 兰州, 甘肃 730020, 中国
推荐引用方式 GB/T 7714	王胜,刘洪兰. 肃北县戈壁过渡带降水量对气候变化的响应[J]. 中国气象局兰州干旱气象研究所,2014,31(5):898-904.
APA	王胜,&刘洪兰.(2014).肃北县戈壁过渡带降水量对气候变化的响应.干旱区研究,31(5),898-904.
MLA	王胜,et al."肃北县戈壁过渡带降水量对气候变化的响应".干旱区研究 31.5(2014):898-904.