通过遥感和景观分析量化卢本巴希木炭生产盆地(刚果民主共和国)COVID-19 大流行期间的森林覆盖丧失情况

Yannick Useni Sikuzani, Médard Mpanda Mukenza, Ildephonse Kipili Mwenya, H. Muteya, D. Nghonda, N. Mukendi, François Malaisse, Françoise Malonga Kaj, Donatien Dibwe dia Mwembu, Jan Bogaert
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摘要

在卢本巴希木炭生产盆地(Lubumbashi Charcoal Production Basin,LCPB),COVID-19 大流行病造成的社会经济影响加剧了依赖森林资源生存的人口的压力。本研究采用了一种综合方法,整合了先进的遥感技术,包括图像分类、绘图和详细的景观分析,以量化大流行期间 LCPB 地区森林覆盖率的变化。我们的研究结果表明,从 2019 年 5 月到 2023 年 11 月的各个研究阶段中,森林覆盖面积呈持续下降趋势,其特点是观察到的损耗和剖析过程。森林覆盖面积的减少在卢本巴希市附近和卢加诺预防控制局北部地区尤为明显,但在 2019 年 11 月至 2020 年 9 月期间则不那么明显,这凸显了 COVID-19 大流行引发的限制措施对该地区森林管理措施的影响。然而,在这一限制期之后,砍伐森林的活动加剧,导致 LCPB 地区的景观发生重大变化,这主要归因于人类活动的扩大,从而导致这些自然生态系统所占土地的比例明显下降。因此,在 2019 年 5 月至 2023 年 11 月期间,最大森林斑块的面积大幅下降,从 14.62% 降至 8.20%,从而导致森林边缘的密度随着时间的推移而增加。我们的研究结果为理解 COVID-19 大流行与森林砍伐现象之间复杂的相互作用做出了重要贡献,强调了采取适应性管理策略和适当保护措施以应对当前经济挑战的迫切需要。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Quantifying Forest Cover Loss during the COVID-19 Pandemic in the Lubumbashi Charcoal Production Basin (DR Congo) through Remote Sensing and Landscape Analysis
In the context of the Lubumbashi Charcoal Production Basin (LCPB), the socio-economic repercussions of the COVID-19 pandemic have exacerbated pressures on populations dependent on forest resources for their subsistence. This study employs a comprehensive methodological approach, integrating advanced remote sensing techniques, including image classification, mapping, and detailed landscape analysis, to quantify alterations in forest cover within the LCPB during the pandemic period. Our findings reveal a consistent trend of declining forested area, characterized by processes of attrition and dissection observed throughout various study phases, spanning from May 2019 to November 2023. This reduction in forest cover, notably more pronounced in the vicinity of Lubumbashi city and the northern zone of the LCPB, proved to be less pronounced between November 2019 and September 2020, underscoring the influence of COVID-19 pandemic-induced confinement measures on forest management practices in the region. However, subsequent to this period of restriction, deforestation activity intensified, leading to significant landscape transformations within the LCPB, primarily attributable to expanded human activities, consequently resulting in a notable decrease in the proportion of land occupied by these natural ecosystems. Consequently, the size of the largest forest patch declined substantially, decreasing from 14.62% to 8.20% between May 2019 and November 2023, thereby fostering a heightened density of forest edges over time. Our findings provide a significant contribution to understanding the complex interactions between the COVID-19 pandemic and deforestation phenomena, emphasizing the urgent need to adopt adaptive management strategies and appropriate conservation measures in response to current economic challenges.
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