干旱区生态环境知识资源中心(Arid): 3种干旱指数在宁夏中部干旱带的适用性分析

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	3种干旱指数在宁夏中部干旱带的适用性分析
其他题名	Analysis of Applicability of Three Drought Indices in the Arid Area of Central Ningxia
	关静 1; 梁川 1; 赵璐 2; 崔宁博 2; 王春懿 1
来源期刊	水土保持研究
ISSN	1005-3409
出版年	2018
卷号	25 期号:3 页码:122-127
中文摘要	利用宁夏中部干旱带盐池、中宁、同心、海原4个站点19602015年共56年的气候资料月值数据,计算了各个站点春、夏、秋、冬及作物生长季的标准化降水指数(SPI)、标准化降水蒸散指数(SPEI)和K干旱指数,并比较了3种干旱指数的评估结果。结果表明:(1)除冬季外,3种干旱指数在其他时间尺度上相关性均较好,SPI和SPEI,SPEI和K指数在冬季的相关性较差。(2)春、夏及作物生长季,SPEI和K指数判别的干旱情况较接近,SPI判别的干旱程度略轻;秋冬两季,K指数判别的干旱程度最高,SPEI判别的干旱程度最轻。(3) 4个站点春、夏、秋、冬及作物生长季的SPI、SPEI和K指数序列M-K法趋势分析结果相似,均能表示出宁夏中部干旱带干旱的变化趋势。(4)结合历史旱情资料,发现K指数相比于SPI、SPEI更能有效反映宁夏中部干旱带的干旱情况,其评估结果基本与历史干旱事实相符。
英文摘要	Based on the monthly meteorological data of four meteorological stations from 1960 to 2015 of the arid area of central Ningxia,indices of SPI,SPEI, and K of spring,summer,autumn,winter and crop growing season were calculated,and the assessment results of the three drought indices were compared. The results showed that: (1) three drought indices had good correlation each other at all time scales except winter and the correlations between SPI and SPEI,between SPEI and K index were poor in winter; (2) indices of SPEI and K were relatively similar in identification of drought in spring, summer and crop growing season, and K index had the highest degree of drought assessment in autumn and winter,followed by indices of SPI and SPEI; (3) M-K trend analysis results from the three drought indices were similar,which can indicate the trend of drought in the arid area of central Ningxia; (4) K index was more effective than SPI and SPEI, and its assessment results were basically consistent with historical drought facts.
中文关键词	干旱指数 ; 宁夏中部干旱带 ; 适用性 ; SPI指数 ; SPEI指数 ; K指数
英文关键词	drought index the arid area in central Ningxia applicability SPI SPEI K index
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:6200416
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/238347
作者单位	1.四川大学水利水电学院, 水力学与山区河流开发保护国家重点实验室, 成都, 四川 610065, 中国; 2.四川大学水利水电学院;;南方丘区节水农业研究四川省重点实验室, 水力学与山区河流开发保护国家重点实验室;;南方丘区节水农业研究四川省重点实验室, 成都;;成都, ;; 610065;;610066
推荐引用方式 GB/T 7714	关静,梁川,赵璐,等. 3种干旱指数在宁夏中部干旱带的适用性分析[J],2018,25(3):122-127.
APA	关静,梁川,赵璐,崔宁博,&王春懿.(2018).3种干旱指数在宁夏中部干旱带的适用性分析.水土保持研究,25(3),122-127.
MLA	关静,et al."3种干旱指数在宁夏中部干旱带的适用性分析".水土保持研究 25.3(2018):122-127.