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Burned area occurrence in agrarian reform settlement projects in the Matopiba region, Brazil
Applied Geography ( IF 4.732 ) Pub Date : 2024-03-21 , DOI: 10.1016/j.apgeog.2024.103243
Gisele Milare , Angélica Giarolla , Maria Isabel Sobral Escada

Wildfires have been causing negative effects on ecosystems and rural communities. Among rural communities, the agrarian reform settlement projects have registered fires resulting from agricultural management inside and outside their areas. In this context, our objective was to analyze 821 settlement projects in the Matopiba region to explore the spatial-temporal dynamics of burned area occurrences. For this, we used the burned area data from MCD64A1 v006, from 2001 to 2021, and estimated the total burned area and its percentage for each settlement project per month and per year, and the frequency and trend. Based on these characteristics, we classified each settlement project to identify patterns. We identified a temporal pattern, with inter-annual variations, associated with the dry season. Also, the extension of the burned area increased significantly in the years of drought anomaly. Settlement projects with high and low fire frequency coexist in the same region. We also identified a small cluster with a positive trend in the northeast of the Matopiba region related to the surrounding agriculture expansion area. The classification based on burned area, trend and frequency is useful to select priority settlement projects for fire prevention actions.

中文翻译:

巴西马托皮巴地区土地改革安置项目发生烧毁面积

野火一直对生态系统和农村社区造成负面影响。在农村社区,土改安置项目曾因区域内外农业管理引发火灾。在此背景下,我们的目标是分析马托皮巴地区的 821 个定居点项目,以探索烧毁地区发生的时空动态。为此,我们使用了 2001 年至 2021 年 MCD64A1 v006 的烧毁面积数据,估算了每月和每年每个定居点项目的总烧毁面积及其百分比,以及频率和趋势。根据这些特征,我们对每个定居点项目进行了分类,以识别模式。我们确定了与旱季相关的具有年际变化的时间模式。并且,在干旱异常年份,过火面积的扩大明显增加。同一地区火灾频率高、低的聚落项目并存。我们还在马托皮巴地区东北部发现了一个与周边农业扩张区相关的呈积极趋势的小集群。基于火灾面积、趋势和频率的分类有助于选择防火行动的优先解决项目。
更新日期:2024-03-21
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