气候变化领域集成服务门户(CCPortal): Assessment of carbon sequestration potential of mining areas under ecological restoration in China

CCPortal

DOI	10.1016/j.scitotenv.2024.171179
	Assessment of carbon sequestration potential of mining areas under ecological restoration in China
	Zhu, Yanfeng; Wang, Liping; Ma, Jing; Hua, Ziyi; Yang, Yongjun; Chen, Fu
发表日期	2024
ISSN	0048-9697
EISSN	1879-1026
起始页码	921
卷号	921
英文摘要	Mining activities aggravate the ecological degradation and emission of greenhouse gases throughout the world, thereby affecting the global climate and posing a serious threat to the ecological safety. Vegetation restoration is considered to be an effective and sustainable strategy to improve the post-mining soil quality and functions. However, we still have a limited knowledge of the impact of vegetation restoration on carbon sequestration potential in mining areas. In this pursuit, the present study was envisaged to integrate the findings from studies on soil organic carbon (SOC) sequestration in mining areas under vegetation restoration with field monitoring data. The carbon sequestration potential under vegetation restoration in China's mining areas was estimated by using a machine learning model. The results showed that (1) Vegetation restoration exhibited a consistently positive impact on the changes in the SOC reserves. The carbon sequestration potential was the highest in mixed forests, followed by broad-leaved forests, coniferous forests, grassland, shrubland, and farmland; (2) The number of years of vegetation restoration and mean annual precipitation were found to be the important moderating variables affecting the SOC reserves in reclaimed soils in mining areas; (3) There were significant differences in the SOC sequestration potential under different vegetation restoration scenarios in mining areas in China. The SOC sequestration potential reached up to 9.86 million t C a(-1), when the soil was restored to the initial state. Based on the meta-analysis, the maximal attainable SOC sequestration potential was found to be 4.26 million t C a(-1). The SOC sequestration potential reached the highest level of 12.86 million t C a(-1), when the optimal vegetation type in a given climate was restored. The results indicated the importance of vegetation restoration for improving the soil sequestration potential in mining areas. The time lag in carbon sequestration potential for different vegetation types in mining areas was also revealed. Our findings can assist the development of ecological restoration regimens in mining areas to mitigate the global climate change.
英文关键词	Land reclamation; Vegetation restoration meta-analysis; Carbon sequestration potential; Mining area management
语种	英语
WOS研究方向	Environmental Sciences & Ecology
WOS类目	Environmental Sciences
WOS记录号	WOS:001196646100001
来源期刊	SCIENCE OF THE TOTAL ENVIRONMENT
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/303679
作者单位	China University of Mining & Technology; China University of Mining & Technology; Hohai University
推荐引用方式 GB/T 7714	Zhu, Yanfeng,Wang, Liping,Ma, Jing,et al. Assessment of carbon sequestration potential of mining areas under ecological restoration in China[J],2024,921.
APA	Zhu, Yanfeng,Wang, Liping,Ma, Jing,Hua, Ziyi,Yang, Yongjun,&Chen, Fu.(2024).Assessment of carbon sequestration potential of mining areas under ecological restoration in China.SCIENCE OF THE TOTAL ENVIRONMENT,921.
MLA	Zhu, Yanfeng,et al."Assessment of carbon sequestration potential of mining areas under ecological restoration in China".SCIENCE OF THE TOTAL ENVIRONMENT 921(2024).