划定孟加拉国干旱易受影响的地区
Showmitra Kumar Sarkar1, Swadhin Das2, Rhyme Rubayet Rudra2
1Department of Urban and Regional Planning, Khulna University of Engineering & Technology, Khulna, 9203, Bangladesh. mail4dhrubo@gmail.com.
Scientific reports
|October 27, 2024
概括
本研究使用24个因素和分析层次过程 (AHP) 绘制了孟加拉国干旱脆弱性的地图. 东部山区和西北部地区显示高干旱脆弱性,需要有针对性的减缓战略.
科学领域:
- 环境科学 环境科学
- 气候变化研究 气候变化研究
- 灾害风险管理 灾害风险管理
背景情况:
- 孟加拉国面临着干旱造成的重大风险,影响了各个部门.
- 了解区域干旱脆弱性对于有效的灾害准备至关重要.
研究的目的:
- 综合评估和绘制孟加拉国各地干旱脆弱性的地图.
- 为有针对性的干旱缓解和管理确定高风险地区.
主要方法:
- 采用分析层次过程 (AHP),一种多标准决策方法.
- 整合了24个气象,水文,农业和社会经济类别的脆弱性因素.
- 通过文献审查,现场经验和与30名专家的在线访谈,结合了专家意见.
主要成果:
- 东部山区的干旱脆弱性最高 (56.85%).
- 西北地区 (40.39%) 和西南地区 (41.06%) 也显示出明显的脆弱性.
- 该模型表现出可接受的性能,曲线下的面积为0.819.
结论:
- 已经创建了孟加拉国干旱脆弱性的详细地图.
- 这些发现为决策者提供了关键数据,帮助他们制定有效的干旱减缓战略.
- 针对高脆弱性区域的有针对性的干预措施可以最大限度地减少与干旱相关的损失.
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