Herbivores stimulate respiration from labile and recalcitrant soil carbon pools in grasslands of Yellowstone National Park

doi:10.1002/ldr.3656

IEECAS OpenIR > 黄土与第四纪地质国家重点实验室（2010~）

	Herbivores stimulate respiration from labile and recalcitrant soil carbon pools in grasslands of Yellowstone National Park
	Chen, Ji 1,2,3,4; Frank, Douglas A.5
通讯作者	Chen, Ji(ji.chen@agro.au.dk)
	2020-06-07
发表期刊	LAND DEGRADATION & DEVELOPMENT
ISSN	1085-3278
页码	15
摘要	Quantifying the effects of grazing on soil organic carbon (SOC) decomposition is of crucial importance for understanding soil C dynamics. However, less attention has been paid to the pool-specific SOC decomposition and the underlying factors associated with each C pool, representing critical knowledge gaps on soil C dynamics. In this study, we applied a state-of-the-art Bayesian data assimilation technique to re-analyze previous soil incubation data to examine how herbivores influenced the fraction and cumulative respiration of labile and recalcitrant soil C pools from seven edaphically diverse sites in Yellowstone National Park, whereas those variables were not explored in the earlier study. Our results showed that grazing significantly increased cumulative respiration from both labile and recalcitrant C pools. Greater cumulative respiration from the labile C pool was related to grazers increasing labile C pool fractions, while higher cumulative respiration from the recalcitrant C pool was associated with grazers accelerating the decomposition rate of the recalcitrant C pool. Cumulative respiration from both labile and recalcitrant C pools was positively correlated with shoot biomass, soil gravimetric moisture, and soil C and nitrogen content. Our results underscore how knowledge of pool-specific SOC decomposition can provide a better mechanistic understanding of soil C dynamics along topo-edaphic gradients in grazed grassland.
关键词	data assimilation decomposition herbivores grazing labile carbon pool plant productivity recalcitrant carbon pool soil incubation \| microorganisms
DOI	10.1002/ldr.3656
关键词[WOS]	TEMPERATURE SENSITIVITY ; MEADOW GRASSLAND ; ORGANIC-MATTER ; NITROGEN MINERALIZATION ; LIVESTOCK EXCLUSION ; N PROCESSES ; ECOSYSTEM ; DECOMPOSITION ; FEEDBACKS ; RESPONSES
收录类别	SCI ; SCI
语种	英语
资助项目	Aarhus Universitets Forskningsfond[AUFF-E-2019-7-1] ; China Postdoctoral Science Foundation[2017M610647] ; China Postdoctoral Science Foundation[2018T111091] ; H2020 Marie SklodowskaCurie Actions[839806] ; National Natural Science Foundation of China[41701292]
WOS研究方向	Environmental Sciences & Ecology ; Agriculture
项目资助者	Aarhus Universitets Forskningsfond ; China Postdoctoral Science Foundation ; H2020 Marie SklodowskaCurie Actions ; National Natural Science Foundation of China
WOS类目	Environmental Sciences ; Soil Science
WOS记录号	WOS:000538296200001
出版者	WILEY
引用统计	被引频次：10[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	http://ir.ieecas.cn/handle/361006/14863
专题	黄土与第四纪地质国家重点实验室（2010~）
通讯作者	Chen, Ji
作者单位	1.Northwestern Polytech Univ, Sch Ecol & Environm, Key Lab Space Biosci Biotechnol, Xian 710072, Peoples R China 2.Chinese Acad Sci, State Key Lab Loess & Quaternary Geol SKLLQG, Inst Earth Environm, Xian, Peoples R China 3.Chinese Acad Sci, Key Lab Aerosol Chem & Phys, Inst Earth Environm, Xian, Peoples R China 4.Aarhus Univ, Ctr Circular Bioecon, Dept Agroecol, Tjele, Denmark 5.Syracuse Univ, Life Sci Complex, Syracuse, NY USA
推荐引用方式 GB/T 7714	Chen, Ji,Frank, Douglas A.. Herbivores stimulate respiration from labile and recalcitrant soil carbon pools in grasslands of Yellowstone National Park[J]. LAND DEGRADATION & DEVELOPMENT,2020:15.
APA	Chen, Ji,&Frank, Douglas A..(2020).Herbivores stimulate respiration from labile and recalcitrant soil carbon pools in grasslands of Yellowstone National Park.LAND DEGRADATION & DEVELOPMENT,15.
MLA	Chen, Ji,et al."Herbivores stimulate respiration from labile and recalcitrant soil carbon pools in grasslands of Yellowstone National Park".LAND DEGRADATION & DEVELOPMENT (2020):15.