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- Title
基于灾害风险综合指标的陕西省农业干旱时空特征.
- Authors
何斌; 王全九; 吴迪; 周蓓蓓
- Abstract
With the change of climate, agricultural drought has directly threatened the food security. Based on the natural disaster risk theory, we analyzed the spatial and temporal characteristics of agricultural drought in Shanxi Province from 2009 to 2013. Four risk factors (hazard, exposure, vulnerability, and drought resistance ability) were selected with the consideration of influence factors of drought disasters. Subsequently, the index weight was determined by the analytic hierarchy process (AHP) and the aggregative indicator of natural disaster risk was established. The results showed that during the study period, the agricultural drought risk slightly declined in the northern Shaanxi, but increased sharply in the southern Shaanxi, especially in Shangluo City. While for the central part of Shaanxi Province, it maintained good stability, which was the highest in Xianyang City and the lowest in Xi'an City. Generally, the agricultural drought risk in Shaanxi Province gradually increased from south to north.
- Publication
Chinese Journal of Applied Ecology / Yingyong Shengtai Xuebao, 2016, Vol 27, Issue 10, p3299
- ISSN
1001-9332
- Publication type
Article
- DOI
10.13287/j.1001-9332.201610.040