The impacts of four potential bioenergy crops on soil carbon dynamics as shown by biomarker analyses and DRIFT spectroscopy

doi:10.1111/gcbb.12520

IMR OpenIR

	The impacts of four potential bioenergy crops on soil carbon dynamics as shown by biomarker analyses and DRIFT spectroscopy
	Zhu, Xuefeng 1,2; Liang, Chao 1; Masters, Michael D.3,4,5; Kantola, Ilsa B.3,4,5; DeLucia, Evan H.3,4,5,6
通讯作者	Liang, Chao(cliang823@gmail.com)
	2018-07-01
发表期刊	GLOBAL CHANGE BIOLOGY BIOENERGY
ISSN	1757-1693
卷号	10 期号:7 页码:489-500
摘要	Perennial bioenergy crops accumulate carbon (C) in soils through minimally disturbing management practices and large root inputs, but the mechanisms of microbial control over C dynamics under bioenergy crops have not been clarified. Root-derived C inputs affect both soil microbial contribution to and degradation of soil organic matter resulting in differing soil organic carbon (SOC) concentrations, storage, and stabilities under different vegetation regimes. Here, we measured biomarker amino sugars and neutral sugars and used diffuse reflectance mid-infrared Fourier transform spectroscopy (DRIFTS) to explore microbial C contributions, degradation ability, and SOC stability, respectively, under four potential bioenergy crops, M.xgiganteus (Miscanthus x giganteus), switchgrass (Panicum virgatum L.), a mixed prairie, and a maize (Zea mays L.)-maize-soybean (Glycine max(L.) Merr.) (MMS) rotation over six growing seasons. Our results showed that SOC concentration (g/kg) increased by 10.6% in mixed prairie over the duration of this experiment and SOC storage (Mg/ha) increased by 17.0% and 15.6% in switchgrass and mixed prairie, respectively. Conversion of row crops to perennial grasses maintained SOC stability and increased bacterial residue contribution to SOC in M.xgiganteus and switchgrass by 20.0% and 15.0%, respectively, after 6 years. Degradation of microbe-derived labile SOC was increased in M.xgiganteus, and degradation of both labile and stable SOC increased in MMS rotation. These results demonstrate that microbial communities under perennial grasses maintained SOC quality, while SOC quantity increased under switchgrass and mixed prairie. Annual MMS rotation displayed decreases in aspects of SOC quality without changes in SOC quantity. These findings have implications for understanding microbial control over soil C quantity and quality under land-use shift from annual to perennial bioenergy cropping systems.
关键词	amino sugars biomarker diffuse reflectance mid-infrared Fourier transform spectroscopy maize-maize-soybean rotation microbial residue neutral sugars perennial bioenergy crops soil organic carbon decomposition soil organic carbon stability
资助者	National Natural Science Foundation of China ; U.S. DOE, BER Office of Science
DOI	10.1111/gcbb.12520
收录类别	SCI
语种	英语
资助项目	National Natural Science Foundation of China[41471218] ; National Natural Science Foundation of China[41671297] ; U.S. DOE, BER Office of Science[DE-SC-18420]
WOS研究方向	Agriculture ; Biotechnology & Applied Microbiology ; Energy & Fuels
WOS类目	Agronomy ; Biotechnology & Applied Microbiology ; Energy & Fuels
WOS记录号	WOS:000434639600006
出版者	WILEY
引用统计	被引频次：27[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	http://ir.imr.ac.cn/handle/321006/128193
专题	中国科学院金属研究所
通讯作者	Liang, Chao
作者单位	1.Chinese Acad Sci, Inst Appl Ecol, Shenyang, Liaoning, Peoples R China 2.Univ Chinese Acad Sci, Beijing, Peoples R China 3.Univ Illinois, Energy Biosci Inst, Champaign, IL USA 4.Univ Illinois, Inst Sustainabil Energy & Environm, Champaign, IL USA 5.Univ Illinois, Carl R Woese Inst Genom Biol, Champaign, IL USA 6.Univ Illinois, Dept Plant Biol, Champaign, IL USA
推荐引用方式 GB/T 7714	Zhu, Xuefeng,Liang, Chao,Masters, Michael D.,et al. The impacts of four potential bioenergy crops on soil carbon dynamics as shown by biomarker analyses and DRIFT spectroscopy[J]. GLOBAL CHANGE BIOLOGY BIOENERGY,2018,10(7):489-500.
APA	Zhu, Xuefeng,Liang, Chao,Masters, Michael D.,Kantola, Ilsa B.,&DeLucia, Evan H..(2018).The impacts of four potential bioenergy crops on soil carbon dynamics as shown by biomarker analyses and DRIFT spectroscopy.GLOBAL CHANGE BIOLOGY BIOENERGY,10(7),489-500.
MLA	Zhu, Xuefeng,et al."The impacts of four potential bioenergy crops on soil carbon dynamics as shown by biomarker analyses and DRIFT spectroscopy".GLOBAL CHANGE BIOLOGY BIOENERGY 10.7(2018):489-500.