| 陈正中,刘代勇,彭亚兰.基于GIS的南盘江流域区域农业旱灾风险区划应用研究[J].江西水利科技,2016,(4):236-243 |
| 基于GIS的南盘江流域区域农业旱灾风险区划应用研究 |
| Application of agricultural drought risk regionalization based on GIS in Nanpanjiang basin |
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| DOI： |
| 中文关键词: 风险理论 致灾因子 孕灾环境 承灾体 GIS 风险区划 |
| 英文关键词: Risk theory Hazard factor Environment disaster Hazard bearing body GIS Risk regionalization |
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| 摘要点击次数: 541 |
| 全文下载次数: 546 |
| 中文摘要: |
| 根据农业干旱发生发展规律和风险理论，从旱灾造成农作物减产的角度出发，分别对致灾因子危险性、孕灾环境脆弱性和承灾体易损性进行分析，建立农业旱灾风险评估模型，结合GIS中自然断点分类法进行聚类分析，开展区域农业旱灾风险区划。以云南省南盘江流域为研究区域，根据干旱等级划分标准，将研究区域按4个等级进行农业旱灾风险区划，并对分区结果进行分析，为该区域政府部门制定防灾减灾规划提供技术支撑。 |
| 英文摘要: |
| According to the regular pattern of development of agricultural drought and risk theory, from the perspective of crop losses caused by drought, analyzed the risk of hazard factor, environmental vulnerability of disaster and vulnerability of bearing body, established the agricultural drought risk assessment model, made cluster analysis combining GIS in natural breaks classification, developed regional agricultural drought risk regionalization. Selected Nanpanjiang basin in Yunnan as the study area, according to the standard classification of drought, made agricultural drought risk regionalization according to four levels, and analyzed the regionalization results. The research provides technical support for the development of disaster prevention and mitigation planning. |
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