干旱区生态环境知识资源中心(Arid): Effects of fire on the soil microbial metabolic quotient: A global meta-analysis

Arid

DOI	10.1016/j.catena.2023.106957
	Effects of fire on the soil microbial metabolic quotient: A global meta-analysis
	Liu, Weichao; Zhang, Zhenjiao; Li, Jiaxin; Wen, Yuhao; Liu, Fuhe; Zhang, Wei; Liu, Hanyu; Ren, Chengjie; Han, Xinhui
通讯作者	Han, XH
来源期刊	CATENA
ISSN	0341-8162
EISSN	1872-6887
出版年	2023
卷号	224
英文摘要	Soil microorganisms play an essential role in the biogeochemical cycles; however, the response of soil micro-organisms to fire is largely unknown. Understanding this response has become increasingly important in the current context of global ecosystem disturbance, which is characterized by an increased frequency of fires. Therefore, a global meta-analysis of 371 cases from 81 published studies was conducted to explore the comprehensive effects of fires on soil microbial properties. The results show that fires significantly increased microbial metabolic quotient (qCO2), by 19.45% on average, and decreased soil microbial biomass carbon (MBC) by 8.41% and fungal biomass by 27.17%. Moreover, the response of these microbial indices to fires intensified with increasing fire intensity. In addition, ecosystem types and climate zones have an impact on the response of MBC and qCO2 to fires. Among them, MBC and qCO2 in coniferous forests and continental climate zones are the most sensitive to fires. A correlation analysis displayed that the response of soil organic carbon (SOC) to fires was significantly and positively correlated with the response of MBC but negatively correlated with the response of qCO2. Furthermore, fires reduced SOC in the short term, but had no significant impact in the long term. Collectively, this study emphasizes the need to pay greater attention to forest fire protection in arid areas under global climate change.
英文关键词	Fire Fungi Microbial biomass carbon Microbial metabolic quotient Soil organic carbon
类型	Article
语种	英语
收录类别	SCI-E
WOS记录号	WOS:000963237000001
WOS关键词	ORGANIC-MATTER ; CARBON ; BIOMASS ; COMMUNITIES ; RESPONSES ; DYNAMICS ; MICROORGANISMS ; TURNOVER ; BACTERIA ; IMPACTS
WOS类目	Geosciences, Multidisciplinary ; Soil Science ; Water Resources
WOS研究方向	Geology ; Agriculture ; Water Resources
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/395675
推荐引用方式 GB/T 7714	Liu, Weichao,Zhang, Zhenjiao,Li, Jiaxin,et al. Effects of fire on the soil microbial metabolic quotient: A global meta-analysis[J],2023,224.
APA	Liu, Weichao.,Zhang, Zhenjiao.,Li, Jiaxin.,Wen, Yuhao.,Liu, Fuhe.,...&Han, Xinhui.(2023).Effects of fire on the soil microbial metabolic quotient: A global meta-analysis.CATENA,224.
MLA	Liu, Weichao,et al."Effects of fire on the soil microbial metabolic quotient: A global meta-analysis".CATENA 224(2023).