气候变化领域集成服务门户(CCPortal): Priming of Soil Organic Carbon Decomposition Induced by Exogenous Organic Carbon Input Depends on Vegetation and Soil Depth in Coastal Salt Marshes

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DOI	10.3390/soilsystems8010034
	Priming of Soil Organic Carbon Decomposition Induced by Exogenous Organic Carbon Input Depends on Vegetation and Soil Depth in Coastal Salt Marshes
	Zhang, Yaru; Li, Xue; Xie, Baohua; Wang, Xiaojie; Zhao, Mingliang; Han, Guangxuan; Chen, Yongjin; Song, Weimin
发表日期	2024
EISSN	2571-8789
起始页码	8
结束页码	1
卷号	8 期号:1
英文摘要	The input of fresh organic carbon into soils can stimulate organic carbon mineralization via priming effects (PEs). However, little is known about the characterization of PEs in coastal wetlands. We investigated the PEs of two salt marshes (Suaeda salsa and Phragmites australis) in the Yellow River Delta by adding C-13-labeled glucose to soils collected from the 0-10 cm and 20-30 cm layers of both salt marshes. The addition of glucose produced a significant positive PE in both soil layers for both vegetation types. There were no differences in the PE of the topsoil layer between the two vegetation types (p > 0.05), whereas the PE of S. salsa was 19.5% higher than that of P. australis in the subsoil layer (p < 0.05). In addition, the topsoil layer showed a higher average PE of 29.1% compared to that of the subsoil layer for both vegetation types (p < 0.05). The differences in the PEs between the two vegetation types and the two layers could be associated with a differential soil salinity, substrate availability, and microbial community structure. Our findings highlight the important role of PEs in regulating the soil carbon storage of coastal salt marshes, which should be considered when assessing and modeling the soil carbon cycling of coastal wetlands.
英文关键词	coastal wetland; blue carbon; soil carbon mineralization; priming effect; stable isotope; microorganisms
语种	英语
WOS研究方向	Agriculture
WOS类目	Soil Science
WOS记录号	WOS:001193422300001
来源期刊	SOIL SYSTEMS
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/296460
作者单位	Liaocheng University; Chinese Academy of Sciences; Yantai Institute of Coastal Zone Research, CAS; Chinese Academy of Sciences
推荐引用方式 GB/T 7714	Zhang, Yaru,Li, Xue,Xie, Baohua,et al. Priming of Soil Organic Carbon Decomposition Induced by Exogenous Organic Carbon Input Depends on Vegetation and Soil Depth in Coastal Salt Marshes[J],2024,8(1).
APA	Zhang, Yaru.,Li, Xue.,Xie, Baohua.,Wang, Xiaojie.,Zhao, Mingliang.,...&Song, Weimin.(2024).Priming of Soil Organic Carbon Decomposition Induced by Exogenous Organic Carbon Input Depends on Vegetation and Soil Depth in Coastal Salt Marshes.SOIL SYSTEMS,8(1).
MLA	Zhang, Yaru,et al."Priming of Soil Organic Carbon Decomposition Induced by Exogenous Organic Carbon Input Depends on Vegetation and Soil Depth in Coastal Salt Marshes".SOIL SYSTEMS 8.1(2024).