气候变化领域集成服务门户(CCPortal): The Response of Critical Microbial Taxa to Litter Micro-Nutrients and Macro-Chemistry Determined the Agricultural Soil Priming Intensity After Afforestation

CCPortal

DOI	10.3389/fmicb.2021.730117
	The Response of Critical Microbial Taxa to Litter Micro-Nutrients and Macro-Chemistry Determined the Agricultural Soil Priming Intensity After Afforestation
	Yang, Hongling; Li, Yulin; Wang, Shaokun; Zhan, Jin; Ning, Zhiying; Han, Dan
通讯作者	Li, YL (通讯作者)，Chinese Acad Sci, Northwest Inst Ecoenvironm & Resources, Naiman Desertificat Res Stn, Lanzhou, Peoples R China.
发表日期	2021
EISSN	1664-302X
卷号	12
英文摘要	Afforestation with trees and shrubs around cropland can effectively decrease soil degradation and avoid sand storms, but subsequent modification of litter quality accelerates the degradation of native organic matter via the soil priming effect (PE). Although carbon accumulation in agricultural soils after afforestation was widely studied, little is known about the extent to which soil organic carbon (SOC) mineralization is induced by complex residue input in agro-forest-grass composite ecosystems. Here, we mixed corn field soil and litter of afforestation tree and shrub species together in a micro-environment to quantify the effects of litter-mixture input on farmland soil priming associated with afforestation. Additionally, we studied the responses of bacterial and fungal species to litter chemistry, with the aim to identify the litter and microbial driver of soil priming. The results showed that soil priming was accelerated by different litter addition which varied from 24 to 74% of SOC mineralization, suggesting that priming intensity was relatively flexible and highly affected by litter quality. We also find that the macro-chemistry (including litter carbon, nitrogen, lignin, and cellulose) directly affects priming intensity, while micro-chemistry (including litter soluble sugar, water-soluble phenol, methanol-soluble phenol, and condensed tannin) indirectly influences priming via alteration to dominant bacterial taxa. The stepwise regression analysis suggested that litter nitrogen and cellulose were the critical litter drivers to soil priming (r(2) = 0.279), and the combination of bacterial phylum Proteobacteria, Firmicutes, Bacteroidetes, Acidobacteria, and fungal taxa Eurotiomycetes was a great model to explain the priming intensity (r(2) = 0.407).
关键词	ORGANIC-MATTER LABILE CARBON NITROGEN DECOMPOSITION LIGNIN INPUTS COMMUNITIES MAGNITUDE CELLULOSE DYNAMICS
英文关键词	afforestation; agro-forest-grass composite ecosystem; soil priming effect; litter chemical traits; critical microbial taxa; macro-chemistry
语种	英语
WOS研究方向	Microbiology
WOS类目	Microbiology
WOS记录号	WOS:000702009800001
来源期刊	FRONTIERS IN MICROBIOLOGY
来源机构	中国科学院西北生态环境资源研究院
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/253744
作者单位	[Yang, Hongling; Li, Yulin; Wang, Shaokun; Zhan, Jin; Ning, Zhiying; Han, Dan] Chinese Acad Sci, Northwest Inst Ecoenvironm & Resources, Naiman Desertificat Res Stn, Lanzhou, Peoples R China; [Yang, Hongling; Ning, Zhiying; Han, Dan] Univ Chinese Acad Sci, Coll Resources & Environm, Beijing, Peoples R China; [Wang, Shaokun] Chinese Acad Sci, Northwest Inst Ecoenvironm & Resources, Urat Desert Grassland Res Stn, Lanzhou, Peoples R China
推荐引用方式 GB/T 7714	Yang, Hongling,Li, Yulin,Wang, Shaokun,et al. The Response of Critical Microbial Taxa to Litter Micro-Nutrients and Macro-Chemistry Determined the Agricultural Soil Priming Intensity After Afforestation[J]. 中国科学院西北生态环境资源研究院,2021,12.
APA	Yang, Hongling,Li, Yulin,Wang, Shaokun,Zhan, Jin,Ning, Zhiying,&Han, Dan.(2021).The Response of Critical Microbial Taxa to Litter Micro-Nutrients and Macro-Chemistry Determined the Agricultural Soil Priming Intensity After Afforestation.FRONTIERS IN MICROBIOLOGY,12.
MLA	Yang, Hongling,et al."The Response of Critical Microbial Taxa to Litter Micro-Nutrients and Macro-Chemistry Determined the Agricultural Soil Priming Intensity After Afforestation".FRONTIERS IN MICROBIOLOGY 12(2021).