Evaluation of Agricultural Drought Vulnerability in Northern China

doi:10.7522/j.issn.1000-694X.2019.00020

Journal of Desert Research ›› 2019, Vol. 39 ›› Issue (4): 149-158.DOI: 10.7522/j.issn.1000-694X.2019.00020

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Evaluation of Agricultural Drought Vulnerability in Northern China

Wang Ying, Zhao Wen, Zhang Qiang

Key Laboratory of Arid Climatic Change and Reducing Disaster of Gansu Province/Key Open Laboratory of Arid Change and Disaster Reduction, Institute of Arid Meteorology, China Meteorological Administration, Lanzhou 730020, China

Received:2018-11-19 Revised:2019-01-29 Online:2019-07-20 Published:2019-07-12

Abstract

Abstract: The vulnerability of water resources, agricultural economy, society and the ability of drought prevention and resistance were selected as the criterion layers to establish the index evaluation system of agricultural drought vulnerability, which was based on investigating and analyzing the present situation of agricultural production in Northern China.The principal component analysis method was used to reduce the dimensionality of high dimensional variables. According to the variance contribution, the evaluation model of agricultural drought vulnerability in Northern China was established, and the classification threshold and regionalization of drought vulnerability in various provinces According to the classification threshold and division of agricultural drought vulnerability in Northern China, the agricultural drought vulnerability based onascending sequence was Beijing, Tianjin, Shandong, Liaoning, Jilin, Shanxi, Inner Mongolia, Anhui, Hebei, Henan, Shaanxi, Ningxia, Qinghai, Heilongjiang, Xinjiang, and Gansu.

Key words: principal component analysis, agricultural drought, vulnerability, Northern China

CLC Number:

P429

Wang Ying, Zhao Wen, Zhang Qiang. Evaluation of Agricultural Drought Vulnerability in Northern China[J]. Journal of Desert Research, 2019, 39(4): 149-158.

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Evaluation of Agricultural Drought Vulnerability in Northern China

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