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标题

华北地区农业干旱灾害变化特征

作者

安雪丽 王前锋 莫新宇 武建军

机构

北京师范大学减灾与应急管理研究院,北京师范大学环境演变与自然灾害教育部重点实验室, 北京师范大学干旱灾害研究中心

摘要

采用干旱灾情数据,以县域为单位,运用受旱率及干旱灾害频率两个指标,分析了华北四省(河南、河北、山东、山西) 1949-2000年农业干旱灾害变化特征。研究表明:华北四省农业干旱灾害受旱率52年间呈上升趋势,80年代之后,中度及中度以上程度干旱灾害发生频率明显增加;干旱灾害频率分布格局有较为明显的东西差异,高频区集中在河南省东北部、山西省北部、山西省西南部及晋中地区;52年间河南省大部及山东省青岛市干旱灾害发生频率有增加的趋势。本研究从灾情记录角度识别了华北四省农业干旱灾害高发区及严重干旱年份,能够为干旱灾害的风险防范及国家防灾减灾工作提供理论支持。

关键词

农业干旱灾害; 受旱率; 干旱灾害频率

引用

安雪丽 王前锋 莫新宇 武建军.华北地区农业干旱灾害变化特征.[J]. 北京师范大学学报(自然科学版),2016,52(5)591-596.

基金

国家国际科技合作专项资助项目(2013DFG21010)

分类号

X43

DOI

10.16360/j.cnki.jbnuns.2016.05.010

Title

Characteristics of Agricultural Drought Disaster in Northern China

Author

AN Xueli; WANG Qianfeng; MO Xinyu; WU Jianjun

Affiliations

Academy of Disaster Reduction and Emergency Management, State Key Laboratory of Earth Surface Processes and Resource Ecology. Center for Drought and Risk Research, Beijing Normal University

Abstract

The variation characteristics of drought disaster in Northern China from 1949 - 2000 was analyzed based on two indicators extracted from disaster statistical data: agricultural drought rate, and drought frequency on a county spatial unit. An increasing trend of agricultural drought rate was found in the latter half of 20th century. After 1980, the frequency of moderate drought and above increased significantly. North-Eastern Henan Province, Northern and South-Western Shanxi Province, and Jinzhong Area showed the highest drought frequency. Drought frequency increased in most area of Henan Province and Qingdao City in Shandong Province. Areas with frequent drought disaster and years with severe agricultural drought were identifed. These results provide theoretical support for risk prevention of drought and national disaster prevention and mitigation.

Key words

agricultural drought disaster; agricultural drought rate; drought frequency

cite

AN Xueli; WANG Qianfeng; MO Xinyu; WU Jianjun. Characteristics of Agricultural Drought Disaster in Northern China [J]. Journal of Beijing Normal University (Natural Science), 2016,52(5):591-596.

DOI

10.16360/j.cnki.jbnuns.2016.05.010

Copyright © 2014 Journal of Beijing Normal University (Natural Science)
Designed by Mr. Sun Chumin. Email: cmsun@mail.bnu.edu.cn