| 摘要: |
| 该文从武都区1971～2010年冰雹资料入手，结合人口、GDP、耕地比等资料，利用ArcGIS软件， 得到冰雹灾害危险性图层，再同承灾体易损性评价、灾害的孕灾背景进行叠加、合并以及等级划分操作， 最后得到冰雹灾害的风险评估及其区划，结果表明:武都区冰雹危险性等级由西北1 600m以上高海拔区向 东南及低海拔区递减，和冰雹路径相符，冰雹灾害风险等级由西北向东南递减。研究结果为预防和减轻冰 雹灾害损失提供了科学依据。 |
| 关键词: 武都山区 冰雹 发生规律 灾害风险区划 |
| DOI：10.7621/cjarrp.1005-9121.20130627 |
| 分类号: |
| 基金项目:基金项目:甘肃省气象局项目（2013-20）:“陇南山区特色农业气象灾害风险区划与气候区划研究” |
|
| AGRICULTURAL HAIL DISASTERS REGULARITY AND RISK ZONE PLANNING IN THE MOUNTAIN AREAS OF WUDU DISTRICT |
|
Xiao Zhiqiang, Fan Ming, Zhao Yanfeng
|
|
Longnan Municipal Meteorological Bureau， Wudu Gansu 746000
|
| Abstract: |
| Based on the data of hail disasters， population， GDP， and cropland areas in Wudu District from 1971 to 2010， this paper used the ArcGIS software to get the hail disaster risk layer， and finally got the hail disaster risk as- sessment and regionalization by overlapping， merging and dividing the vulnerability assessment of hazard-affected bodies and disaster background. The results showed that: the hail risk level in Wudu district decreased from the northwest above 1 600 m high altitude area to the southeast and the low altitude area. The results of the study may provide scientific basis for preventing and reducing the hail disaster loss. |
| Key words: Wudu mountain hail occurrence regularity disaster risk zoning |
