地表煤炭开采对半干旱草原中碳储存的影响
Zhenhua Wu1,2, Qiao Yu3
1Key Laboratory of Ecosystem Carbon Source and Sink, China Meteorological Administration (ECSS-CMA), Wuxi University, Wuxi, 214105, China. wzhdjtc@126.com.
Scientific reports
|May 9, 2025
概括
在过去的21年里,地表煤炭开采显著减少了半干旱草原中的碳储存. 生态系统碳捕获能力的这种退化凸显了采矿区有针对性的生态恢复的必要性.
科学领域:
- 生态经济学生态经济学
- 环境科学环境科学
- 地质科学是地球科学.
背景情况:
- 地表煤矿开采对半干旱的草原地区的生态平衡和碳储存构成挑战.
- 实现"双碳"目标需要了解采矿对生态系统服务的影响.
- 半干旱的草原对于区域的碳捕获和生物多样性至关重要.
研究的目的:
- 量化地表煤炭开采对半干旱草原生态系统中碳储存的影响.
- 分析2002年至2023年碳储存的时空演变.
- 评估由于采矿活动而导致生态系统碳封存能力的退化.
主要方法:
- 利用了跨越八个时期 (2002-2023) 的土地使用数据.
- 使用InVEST (生态系统服务和权衡的综合估值) 模型的碳模块进行估计.
- 分析了时空模式,并量化了与采矿有关的碳损失.
主要成果:
- 在21年内,总碳储量减少了187.15千,这表明碳固定功能减弱.
- 采矿活动直接造成了91.92千的碳损失,导致生态系统退化.
- 碳储存的微不足道变化占主导地位 (73%的区域),下降在23.63%和增加在3.37%.
结论:
- 地表煤炭开采大大降低了半干旱草原的碳储存和封存能力.
- 采矿区的生态恢复计划必须解决碳储存的恢复,以支持"双碳"目标.
- 了解土地使用变化动态对于开采后景观的可持续发展至关重要.
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