[1]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].水土保持研究,2018,25(03):122-127.
　GUAN Jing,LIANG Chuan,ZHAO Lu,et al.Analysis of Applicability of Three Drought Indices in the Arid Area of Central Ningxia[J].Research of Soil and Water Conservation,2018,25(03):122-127.
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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》[ISSN:1005-3409/CN:61-1272/P] 卷: 25 期数: 2018年03期 页码: 122-127 栏目: 出版日期: 2018-04-10
Title:
Analysis of Applicability of Three Drought Indices in the Arid Area of Central Ningxia
作者:
关静1, 梁川1, 赵璐1,2, 崔宁博1,2, 王春懿1
1. 四川大学 水力学与山区河流开发保护国家重点实验室 水利水电学院, 成都 610065;
2. 南方丘区节水农业研究四川省重点实验室, 成都 610066
Author(s):
GUAN Jing1, LIANG Chuan1, ZHAO Lu1,2, CUI Ningbo1,2, WANG Chunyi1
1. State Key Lab of Hydraulics and Mountain River Engineering & College of Water Resource and Hydropower, Sichuan University, Chengdu 610065, China;
2. Provincial Key Laboratory of Water-Saving Agriculture in Hilly Areas of South China, Chengdu 610066, China
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
Keywords:
drought index; the arid area in central Ningxia; applicability; SPI; SPEI; K index
分类号:
P462.3
摘要:
利用宁夏中部干旱带盐池、中宁、同心、海原4个站点1960-2015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。
Abstract:
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.

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备注/Memo

收稿日期:2017-06-02;改回日期:2017-06-20。
基金项目:“十三五”国家重点研发计划项目“西北典型农区高效节水灌溉技术与集成应用”（2016YFC0400206-03）
作者简介:关静(1993-),女,甘肃平凉人,硕士研究生,主要从事水文水资源方面的研究。E-mail:1390338348@qq.com
通讯作者:赵璐(1986-),女,四川南充人,博士,讲师,主要从事节水农业和水文气象方面的研究。E-mail:luya1121@163.com

更新日期/Last Update: 1900-01-01