根据时间序列遥感图像和谷歌地球引擎 (GEE) 检测开放式采矿对干旱和半干旱地区生态系统服务价值的影响
Qinyu Wu1, Liya Yang2, Jiaxin Mi3
1School of Public Policy & Management, China University of Mining and Technology, Xuzhou, 221116, China. qywu@cumt.edu.cn.
BMC ecology and evolution
|February 29, 2024
概括
开放式采矿在奥尔多斯地区在30年内显著降低了89.45%的生态系统服务价值 (ESV). 虽然一些地区有所改善,但采矿特许权显示严重退化,影响生物多样性,气候和水资源.
科学领域:
- 环境科学 环境科学
- 生态生态学 生态生态学
- 遥感 遥感 遥感 遥感
背景情况:
- 生态系统服务价值 (ESV) 对于评估生态系统健康和人类福祉至关重要.
- 开放式采矿造成了严重的环境破坏,但其长期的ESV影响被低估了.
研究的目的:
- 从1990年到2020年,系统地评估开放式采矿对奥尔多斯地区的ESV的长期影响.
- 分析ESV的时空变化,并确定与采矿活动相关的趋势.
主要方法:
- 使用谷歌地球引擎在30年的时间内进行ESV计算.
- 采用曼-肯德尔Tau-b与Sen的方法 (Sen+mk测试) 和连点回归用于时空分析.
主要成果:
- 从1990年到2020年,ESV总体下降了89.45%,生物多样性保护,气候调节和供水方面出现了显著下降.
- 虽然48.45%的地区显示ESV改善,21.28%退化,67%的矿业特许经营地严重退化.
- 采矿区显示ESV趋势稳定,然后下降 (AAPC -0.2%),与控制区的ESV持续增加 (AAPC 0.7%) 相反.
结论:
- 开放式采矿对生态系统服务价值有很大的长期负面影响.
- 结果支持有针对性的生态系统管理,恢复和支付生态系统服务政策,以实现可持续发展.
- 不同的ESV趋势凸显了在矿业影响地区需要具体干预的需要.
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