干旱区生态环境知识资源中心(Arid): 中国北方荒漠区降水空间结构型及变异性研究

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	中国北方荒漠区降水空间结构型及变异性研究
其他题名	Spatial Structural Patterns and Variability of Precipitation over the Desert Region of Northern China
	徐利岗 1; 梁川 1; 周宏飞 2; 吴洪相 3
来源期刊	中国沙漠
ISSN	1000-694X
出版年	2010
卷号	30 期号:6 页码:1433-1441
中文摘要	依据中国北方荒漠区35个站点19512005年降水资料,运用(旋转)经验正交函数分解(EOF/REOF),主成分分析,分形理论及地统计学等方法探讨了北方荒漠区降水空间结构型及空间变异性.结果表明,降水空间分布以"相间复杂"型和"东西相反"型为主(对总体方差贡献分别为35.8%和20.4%);降水趋势自西向东逐渐减弱,有西部增加,中部地区小幅增大而东部地区趋于干旱的可能.新疆地区对全区降水波动方差贡献率达70.4%.新疆地区及青海-河西-河套地区变异函数曲线符合球状模型,内蒙古高原中东部地区符合指数模型;随机因素引起的空间异质性占0.01%~1.62%.20世纪50年代和70年代青海-河西-河套地区变异性最强,新疆地区次之,内蒙古高原中东部地区最弱,90年代以后新疆地区最强,内蒙古高原中东部地区次之,青海-河西-河套地区最弱.新疆地区,青海-河西-河套地区及内蒙古高原中东部地区降水分别在南北方向,东西方向及东北-西南方向异质性最强
英文摘要	By means of empirical orthogonal function(EOF), rotated empirical orthogonal function(REOF), principal component analysis, fractal theory and geostatistical approach, the spatial distribution pattern, primary effect factors and spatial variability of precipitation are analyzed based on the monthly precipitation data during 19512005 for 35 weather stations in desert regions of northern China. Results indicate that:(1)Spatial distribution pattern of precipitation is primarily"complex middle type" and"east-west reversed type"(with the contribution rate of 35.8%and 20.4%to overall variance, respectively).The change trend of precipitation is weakened from west to east. It is possible that the precipitation will increase over the west region, increase in the central region by small range, but get drought in the eastern region.(2)The semivariogram of precipitation fits spherical model in Xinjiang area and Qinhai-Hexi-Hetao Region, and fits exponential model in the mid-east of Inner Mongolia Plateau. The arising of precipitation spatial heterogeneity with0.01%-1.62%is owing to random factors.(3)In1950s and 1970s, the spatial variation of precipitation in Qinhai-Hexi-Hetao Region is the biggest, followed by Xinjiang area, and the mid-east of Inner Mongolia Plateau area is the minimum. But since entering 1990s, the spatial variation of precipitation is the biggest in Xinjiang area, Qinhai-Hexi-Hetao Region is the minimum. The precipitation variability is the strongest in north-south direction(0)in Xinjiang area, northeast-southwest(45)in Qinhai-Hexi-Hetao Region, and east-west direction(90)in the mid-east of Inner Mongolia Plateau area
中文关键词	中国北方荒漠区 ; 降水 ; 空间结构型 ; 空间变异性
英文关键词	EOF/REOF Kriging desert regions in northern China precipitation spatial structural patterns spatial variability EOF/REOF Kriging interpolation method
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:4062791
来源机构	中国科学院新疆生态与地理研究所
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/226050
作者单位	1.中国科学院新疆生态与地理研究所, 乌鲁木齐, 新疆 830011, 中国; 2.宁夏水利科学研究所, 银川, 宁夏 750021, 中国; 3.宁夏水利厅, 银川, 宁夏 750001, 中国
推荐引用方式 GB/T 7714	徐利岗,梁川,周宏飞,等. 中国北方荒漠区降水空间结构型及变异性研究[J]. 中国科学院新疆生态与地理研究所,2010,30(6):1433-1441.
APA	徐利岗,梁川,周宏飞,&吴洪相.(2010).中国北方荒漠区降水空间结构型及变异性研究.中国沙漠,30(6),1433-1441.
MLA	徐利岗,et al."中国北方荒漠区降水空间结构型及变异性研究".中国沙漠 30.6(2010):1433-1441.