使用MODIS卫星数据的全国范围的植被火灾发生的时空模式
Upenyu Naume Mupfiga1,2, Onisimo Mutanga1, Timothy Dube3
1Discipline of Geography, School of Agricultural, Earth and Environmental Sciences, University of KwaZulu-Natal, Pietermaritzburg, South Africa.
PloS one
|March 28, 2024
概括
津巴布韦 津巴布韦 津巴布韦 津巴布韦
科学领域:
- 环境科学 环境科学
- 遥感 遥感 遥感 遥感
- 空间分析 空间分析
背景情况:
- 气候变化增加了火灾风险,需要有效的火灾监测.
- 在津巴布韦,时空火灾模式及其环境驱动因素的了解很少.
- 精确的消防管理需要详细了解火灾的发生和分布.
研究的目的:
- 开发和应用一个空间显式方法来检测津巴布韦的空间时间火灾模式.
- 分析火灾发生与环境变量之间的关联.
- 通过对火灾动态的新见解,为消防管理策略提供信息.
主要方法:
- 利用卫星数据和空间统计数据来检测火灾模式.
- 使用新兴热点分析 (EHSA) 进行统计学上显著的时空检测 (2002-2021年).
- 进行了统计分析,将火灾模式与地形,土地覆盖面,土地利用,生态区域和降雨量联系起来.
主要成果:
- 从2002年到2021年,在津巴布韦发现了显著的时空火灾模式.
- 在炎热和干旱季节 (八月至十月) 的九月份观察到的火灾发生率最高.
- 北部地区显示持续,振荡和减少火灾热点;农业生态地区IIa,IIb和南部Miombo布什维尔德最容易发生火灾.
结论:
- 该研究揭示了津巴布韦的关键时空火灾模式及其环境关联.
- 调查结果表明,由于6月,7月和11月的火灾数量较高,需要修订津巴布韦的官方火灾季节.
- 这项研究为制定有针对性和有效的消防管理策略提供了必要的数据.
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