Drought Temporal and Spatial Distribution Characteristics and Risk Analysis in Inner Mongolia

文献类型： 外文期刊

第一作者： Zhang, Qiaofeng

作者： Zhang, Qiaofeng;Yu, Hongbo;Zhang, Qiaofeng;Liu, Guixiang;Zhang, Qiaofeng;Bao, Yuhai;Yu, Hongbo

作者机构：

关键词： Inner Mongolia region;Natural disasters;Drought;Temporal and spatial characteristics;Risk analysis

期刊名称：INFORMATION TECHNOLOGY FOR RISK ANALYSIS AND CRISIS RESPONSE

ISSN： 1951-6851

年卷期： 2014 年 102 卷

页码：

收录情况： SCI

摘要： Through the statistical analysis of different natural disasters in Inner Mongolia region, the average frequency of drought of successive dynasties was 41.22%, during Sui and Tang, Song and Liao, Ming, Qing and 1949-1990,the drought occurrence frequency were higher than the average. During Song and Liao period, the drought frequency was higher up to 56.47%. Except the period of the republic of China, drought occupied the biggest disaster of all kinds of others and had the trend of fluctuations on the overall growth. During 1949-1990, the occurrence of drought had obvious space characteristic, Alashan and Bayannaoer were the highest regions of drought occurrence frequency and almost had drought disasters every year, and both had the highest frequency of heavy drought. Baotou,Wulanchabu, Chifeng and Tongliao were the second-highest drought occurrence frequency regions, generally between 75% similar to 75%. Ordos, Hohhot and Xilingol were also drought prone regions, generally between 65% similar to 65%. Statistically, Hulunbeir and Xingatuneng occurred the minimum frequency of drought in Inner Mongolia, but both were more than 50%, heavy and moderate drought frequency were relatively low in these regions, but the light drought frequency were higher. The paper used the data of inundated area compared with the affected area of drought to measured the vulnerability of farmland in face of the drought,and used the information diffusion theory in fuzzy mathematics to estimate drought risk of pastoral regions. Results showed that Xilingol, Bayannaoer and Hohhot occupied the top three of the agricultural drought vulnerability in Inner Mongolia, and Ordos, Chifeng and Tongliao occupied the top three of risk value in pastoral regions.

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