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针对选取农业干旱灾害风险指标时欠考虑农业生产过程中的非气象因素的问题,以辽宁省14个地级市为例,综合考虑农业干旱灾害致灾因子的危险性、承灾体的暴露性和脆弱性、地区防旱抗旱能力四个因素,选择合理的指标体系,以自然灾害指数法为基础,结合加权综合评价法和变异系数法,建立了农业干旱灾害风险评价模型,对辽宁省农业干旱灾害风险进行了评价,并借助GIS软件绘制了辽宁省农业干旱灾害风险分布图。结果表明,辽宁省西部地区的农业干旱灾害风险高于东部地区,其中西部的朝阳市和阜新市的农业干旱灾害风险最高。
Considering the problem of non-meteorological factors in the process of agricultural production when considering the risk index of agricultural drought disaster, taking the 14 prefecture-level cities in Liaoning Province as an example, considering the risk of the disaster-causing factor of agricultural drought disaster, the exposure of the disaster-bearing body Based on the natural disaster index method, combined with the weighted comprehensive evaluation method and the coefficient of variation method, the risk assessment model of agricultural drought disaster was established, and the agriculture of Liaoning Province The risk of drought disaster was evaluated, and GIS software was used to map the distribution of risk of agricultural drought disaster in Liaoning Province. The results show that the risk of agricultural drought disaster in the western Liaoning Province is higher than that in the eastern region, and the risk of agricultural drought disaster is the highest in the western Chaoyang and Fuxin cities.