在2000-2019年期间使用卫星数据集评估因采矿引发的森林覆盖面损失导致的全球碳动态
Avinash Kumar Ranjan1, Amit Kumar Gorai1
1Department of Mining Engineering, National Institute of Technology, Rourkela, 769008, India.
Journal of environmental management
|November 9, 2024
概括
采矿活动导致森林覆盖面大幅减少 (FCL),导致大量的碳捕获损失 (CSL) 和二氧化碳 (CO2) 排放. 印度尼西亚,巴西和加拿大是全球环境退化的主要贡献者.
科学领域:
- 环境科学 环境科学
- 气候变化研究 气候变化研究
- 林业和生态 林业和生态
背景情况:
- 采矿业务是森林砍伐和森林覆盖面损失 (FCL) 的公认驱动因素.
- 这种FCL破坏了全球碳循环,导致碳捕获减少和温室气体排放增加.
- 量化这些影响对于理解和缓解气候变化至关重要.
研究的目的:
- 估计2000年至2019年因采矿活动造成的全球森林覆盖面损失 (FCL).
- 量化由此产生的碳捕集损失 (CSL) 和二氧化碳 (CO2) 排放.
- 确定有助于采矿诱导的FCL和相关碳影响的关键地区.
主要方法:
- 利用汉森等人提供的全球森林覆盖面损失数据 (30米分辨率) (2013) 在谷歌地球引擎 (GEE) 平台上.
- 采用基于MODIS的中等分辨率成像光谱辐射仪 (MODIS) 净初级生产率 (NPP) 数据用于CSL评估.
- 张和梁 (2020) 为估计二氧化碳排放而开发的应用生物质数据集.
主要成果:
- 在2000年至2019年期间,全球约有16,785.90平方公里的FCL是采矿活动造成的.
- 这一FCL导致估计的年度CSL约为36,363.17 Gg CO2和总CO2排放量约为490,525.30 Gg.
- 印度尼西亚 (21.58%),巴西和加拿大被确定为矿业诱导的FCL和碳排放的主要贡献者.
结论:
- 采矿活动是全球森林砍伐的重要驱动因素,特别是在资源丰富的地区.
- 相当大的碳捕集损失和二氧化碳排放与采矿引起的FCL直接相关.
- 紧急实施监管框架,可持续土地管理和国际合作对于减轻采矿对环境的影响至关重要.
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