[1]李烁阳,刘小燕,杨贵羽,等.湖北省降水及旱涝时空分布特征分析[J].水土保持研究,2019,26(02):202-207.
　LI Shuoyang,LIU Xiaoyan,YANG Guiyu,et al.Analysis of Spatial and Temporal Distribution of Precipitation and Drought in Hubei Province[J].Research of Soil and Water Conservation,2019,26(02):202-207.
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湖北省降水及旱涝时空分布特征分析

《水土保持研究》[ISSN:1005-3409/CN:61-1272/P] 卷: 26 期数: 2019年02期 页码: 202-207 栏目: 出版日期: 2019-04-28
Title:
Analysis of Spatial and Temporal Distribution of Precipitation and Drought in Hubei Province
作者:
李烁阳1, 刘小燕1, 杨贵羽2, 段娜3
1. 内蒙古农业大学 水利与土木建筑工程学院, 呼和浩特 010018;
2. 中国水利水电科学研究院, 北京 100038;
3. 河北工程大学 水电学院, 河北 邯郸 056021
Author(s):
LI Shuoyang1, LIU Xiaoyan1, YANG Guiyu2, DUAN Na3
1. College of Water Conservancy and Civil Engineering, Inner Mongolia Agricultural University, Hohhot 010018, China;
2. China Institute of Water Resources and Hydropower Research, Beijing 100038, China;
3. College of Water Conservancy and Hydropower of Hebei University of Engineering, Handan, Hebei 056021, China
关键词:
降水; 旱涝; Z值法; 时空分布; EOF分析
Keywords:
precipitation; flood and drought; Z index; spatial and temporal distribution; EOF
分类号:
P426.6;P338+.6
摘要:
为更加全面地了解湖北省降水和旱涝时空分布特征，基于湖北省30个雨量站资料，采用M-K趋势检验、Morlet小波、Z值法及EOF等分析计算方法，对全省1960—2013年降水变化显著性、周期性及空间分布变化进行了研究，并分析了湖北省单站旱涝、区域旱涝等级、空间旱涝分布及30个站点旱涝Z值空间分布模态。结果表明：全省近50年降水量整体呈略微减少的趋势，但减少趋势不显著，降水倾向率为2.92 mm/10 a，空间上呈现东南部和西南部较多，且中东部地区降水呈增加的演变趋势；在此驱动下，全省呈现出旱涝交替频发，东南部易发生涝灾，西北地区易发生旱灾的整体特征；且通过旱涝Z值的EOF正交分解分布图发现，全省旱涝分布呈一致型、西北和东南方向相反型和自西北向东南呈“三明治”型的规律，其贡献率分别为50.23%，16.14%，5.59%。
Abstract:
To more comprehensively understand the spatial and temporal distribution characteristics of precipitation and drought and flood in Hubei Province, based on the data of 30 rainfall stations in Hubei Province, the M-K trend test, wavelet analysis, Z value and EOF method were used to analyze and calculate the data. The variation of rainfall, periodicity and spatial distribution in the 1960—2013 years of the province were analyzed. The regional drought and flood level, the spatial distribution of drought and flood and the spatial distribution pattern of drought and flood Z value in 30 stations were also analyzed in Hubei Province. The results indicated that the precipitation lecreasing in the last 50 years had been decreasing slightly. But the decrease trend was not significant. The precipitation decreasing tendency was 2.92 mm/decade. There was more precipitation in the southeast and southwest and the trend of precipitation increased in the eastern and central regions. In this drive, the alternating droughts and floods occurred frequently in the province. The southeast was prone to flooding and the northwest region was prone to drought. According to the EOF orthogonal decomposition distribution map of drought and flood Z value, there were three types of distribution of drought and flood in Hubei Province, which was uniform on provincial scale, opposite in the northwest and southeast directions, and ’sandwich’ type from northwest to southeast. Their contribution rates were 50.23%, 16.14%, 5.59%, respectively.

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备注/Memo

收稿日期:2017-06-26;改回日期:2018-07-19。
基金项目:国家自然科学基金地区项目（51169012）；国家重点研发计划项目（2016YFA0601503）
作者简介:李烁阳(1991-),男,河北石家庄人,硕士研究生,研究方向为水文学及水资源。E-mail:1260127181@qq.com
通讯作者:刘小燕(1966-),女,内蒙古乌兰察布人,教授,博士,主要从事冻土物理学研究。E-mail:Liuxy6675@163.com

更新日期/Last Update: 1900-01-01