globalchange  > 气候变化事实与影响
CSCD记录号: CSCD:5931047
论文题名:
基于降水距平百分率的陕西省干旱时空分布特征
其他题名: Analysis of Drought Characteristics in Shaanxi Province Based on Precipitation Anomaly Percentage
作者: 韦开1; 王全九2; 周蓓蓓1; 何斌1
刊名: 水土保持学报
ISSN: 1009-2242
出版年: 2017
卷: 31, 期:1, 页码:4234-4241
语种: 中文
中文关键词: 降水距平百分率 ; 时空特征 ; 干旱年际变化特征 ; 降水量
英文关键词: percentage of precipitation anomaly ; temporal and spatial characteristics ; drought and interannual variation characteristics ; precipitation
WOS学科分类: AGRICULTURE MULTIDISCIPLINARY
WOS研究方向: Agriculture
中文摘要: 随着气候变化,气象干旱威胁农业经济发展。利用陕西省16个地市19个气象台站降水资料,选择降水距平百分率为干旱指标,计算陕西省近50a各年的干旱指数,在此基础上分析了干旱年际变化特征,并利用GIS 10.1绘制干旱强度的空间分布图。研究结果表明,陕西省夏季降水多、冬季少,多年平均降水量表现为陕南>关中>陕北;1960-2013年陕南地区、陕北地区、关中地区分别出现干旱次数为15,17, 13,研究区域内16个地市发生干旱的平均频率为28%,轻度、中度、严重、特大干旱发生的平均频率分别为19%,6%,1%,2%,其中绥德发生频率最高(39%)。研究结果为陕西省干旱的监测、评估、预警和抗旱减灾工作提供科学依据。
英文摘要: With climate change,meteorological drought threatened the development of agricultural economy. Used percentage of precipitation anomaly index to describe drought,with precipitation data from weather stations in 16 cities in Shaanxi province,annual drought indices in the recent 50 years(from 1960 to 2013)were calculated.On this basis,analyzing the interannual variation of drought,the spatial distribution characteristics of drought intensity were analyzed by GIS 10.1.It showed that summer precipitation in Shaanxi province was more than that in winter.From northern part to southern part,the average annual precipitation increased. The number of drought event was 15,17,13 in southern part,northern part,guanzhong area of Shaanxi province respectively during this 54 years.The average frequency of drought event was 28%.The average occurrence frequency of light,moderate,serious,extraordinary drought were 19%,6%,1% and 2%respectively.Among them the occurrence frequency of drought in Suide county was the highest(39%). This research would provide a scientific basis for drought monitoring,evaluation,forecast and drought resistance strategy in Shaanxi province.
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/153178
Appears in Collections:气候变化事实与影响

Files in This Item:

There are no files associated with this item.


作者单位: 1.西安理工大学, 西北旱区生态水利工程国家重点实验室培育基地, 西安, 陕西 710048, 中国
2.西安理工大学, 西北旱区生态水利工程国家重点实验室培育基地
3.黄土高原土壤侵蚀与旱地农业国家重点实验室, 西安, 陕西 710048, 中国

Recommended Citation:
韦开,王全九,周蓓蓓,等. 基于降水距平百分率的陕西省干旱时空分布特征[J]. 水土保持学报,2017-01-01,31(1):4234-4241
Service
Recommend this item
Sava as my favorate item
Show this item's statistics
Export Endnote File
Google Scholar
Similar articles in Google Scholar
[韦开]'s Articles
[王全九]'s Articles
[周蓓蓓]'s Articles
百度学术
Similar articles in Baidu Scholar
[韦开]'s Articles
[王全九]'s Articles
[周蓓蓓]'s Articles
CSDL cross search
Similar articles in CSDL Cross Search
[韦开]‘s Articles
[王全九]‘s Articles
[周蓓蓓]‘s Articles
Related Copyright Policies
Null
收藏/分享
所有评论 (0)
暂无评论
 

Items in IR are protected by copyright, with all rights reserved, unless otherwise indicated.