灾害学Issue(1)：135-140,6.DOI:10.3969/j.issn.1000-811X.2015.01.026
陕西苹果果区冰雹灾害分布特征及风险区划
Distribution Characteristics and Risk Zoning of Hail Disaster of Apple Fruit Zone in Shaanxi Province
摘要
Abstract
Based on the hail observation data at weather stations from 1 961 -201 0 in Shaanxi province,tem-poral and spatial distribution characteristics of Hail in 38 apple fruit industry base countries is obtained.According to disaster risk forming mechanism,the assessment model of hail disaster for apple is constructed by using meteoro-logical data,basic geographic information data,socio-economic statistic data,and history disaster situation data and so on,according to the factors,such as the risk of disaster causing,the vulnerability of disaster body,and the ability of disaster prevention/reduction.The results are shown as follows.(1 )Hail in apple fruit area has the char-acteristics of more in North,mountain,and plateau area than in north,plain,and basin area;more in Yan’an and western Weibei fruit area than in eastern Weibei and western Guanzhong fruit area.There are fluctuations of hail occurrence in the 1 970 s and 1 980 s,and has been decreased from the 1 990 s.Hails occurred mostly in summer, and spring and autumn took second place.The diurnal variation of hail is single peak type,and the peak period of hail occurrence is from 1 4∶00 to 1 9∶00,with the frequency of 78.7%.(2)The severe risk regions mainly distrib-ute in the midwest of Yan’an,and the annual hail day is 2 d.The moderate risk regions mainly distribute in most areas of Hancheng,Heyang,Chengcheng,Pucheng,northern Fuping,Yaozhou,Chunhua,Binxian,Changwu, and northern part of these areas of non-severe risk regions;and the annual hail day is 1 ~2 d.The mild risk re-gions mainly distribute in the part of the northwest and eastern of Guanzhong,and the annual hail day is less than 1 d.关键词
苹果/冰雹/时空分布/风险区划/陕西Key words
apple/hail/spatial-temporal distribution/risk zoning/Shaanxi分类
农业科技引用本文复制引用
梁轶,王景红,邸永强,柏秦凤,刘耀武..陕西苹果果区冰雹灾害分布特征及风险区划[J].灾害学,2015,(1):135-140,6.基金项目
陕西省气象局科技创新基金计划项目“陕西苹果基地县冰雹灾害风险评估与区划”（2010M－40）；2010年陕西果业基金发展项目“陕西主栽果树气候适宜性与气象灾害风险区划” （）
