Stocking rate changed the magnitude of carbon sequestration and flow within the plant-soil system of a meadow steppe ecosystem

doi:10.1007/s11104-021-05213-3

	Stocking rate changed the magnitude of carbon sequestration and flow within the plant-soil system of a meadow steppe ecosystem
	Jin, Dongyan ; Yan, Ruirui 1; Li, Linghao2 ; Qi, Jiaguo 3; Chen, Jiquan 3; Xu, Hongbin 4; Yan, Yuchun 1; Xin, Xiaoping 1
	2022
发表期刊	PLANT AND SOIL
ISSN	0032-079X
卷号	473 期号:1-2 页码:33-47
摘要	Aims Livestock grazing is one of the most common utilization methods and exerts a significant effect on the carbon allocations between the above- and belowground components of a grassland ecosystem. The major aim of this study were to evaluate the proportions of C-13 allocation to various C pools of the plant-soil system of a meadow steppe ecosystem in response to changes of stocking rate. Methods In situ stable C-13 isotope pulse labeling was conducted in a long-term grazing experiment with 4 stocking rate. Plant materials and soil samples were taken at eight occasions (0, 3, 10, 18, 31, 56 and 100 days after labeling) to analyze the decline in C-13 over time, and their composition signature of C-13 were analyzed by the isotope ratio mass spectrometer technique. Results We found a significantly greater decline in assimilated C-13 of shoot and living root for the heavily grazed swards compared to other stocking rates, with the highest relocation rate of C-13 into soil C pool compared to other fractions. In addition, light grazing significantly allocated C-13 assimilates in the belowground pool compared to other stocking rates, especially in the live root and topsoil C-pools. Conclusions In this study, the effects of grazing on the carbon transfers and stocks within the plant-soil system of the meadow steppe were highly grazing pressure dependent. Plant-soil system in light stocking rate presented the highest C utilization efficiency, however, plants allocated more C to soil C pools with heavily stocking rate.
关键词	Stocking rate C-13 pulse labeling Carbon translocation Temperate grassland
学科领域	Agronomy ; Plant Sciences ; Soil Science
DOI	10.1007/s11104-021-05213-3
收录类别	SCI
语种	英语
WOS关键词	BELOW-GROUND CARBON ; GRAZING INTENSITY ; INNER-MONGOLIA ; ORGANIC-CARBON ; BIOMASS ALLOCATION ; GRASSLAND ; STORAGE ; RESPONSES ; NITROGEN ; DECOMPOSITION
WOS研究方向	Science Citation Index Expanded (SCI-EXPANDED)
WOS记录号	WOS:000717911100003
出版者	SPRINGER
Special Issue	SI
文献子类	Article
出版地	DORDRECHT
EISSN	1573-5036
资助机构	National Natural Science Foundation of China [41801096, 41771205, 31971769] ; National Key Research and Development Program of China [2017YFE0104500, 2016YFC0500601] ; China Agriculture Research System of MOF and MARA [CARS-34] ; Fundamental Research Funds for Central Non-profit Scientific Institution [Y2020YJ19, 1610132021016] ; Technology Innovation Alliance - Basic Long-term Science and Technology Work in Agriculture [NAES037SQ18]
作者邮箱	xinxiaoping@caas.cn
引用统计	被引频次：3[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	http://ir.ibcas.ac.cn/handle/2S10CLM1/28594
专题	植被与环境变化国家重点实验室
作者单位	1.Chinese Acad Agr Sci, Agr Informat Inst, Beijing 100081, Peoples R China 2.Chinese Acad Agr Sci, Inst Agr Resources & Reg Planning, Natl Hulunber Grassland Ecosystem Observat & Res, Beijing 100081, Peoples R China 3.Chinese Acad Sci, Inst Bot, Beijing 100093, Peoples R China 4.Michigan State Univ, Ctr Global Change & Earth Observat, Dept Geog Environm & Spatial Sci, E Lansing, MI 48824 USA 5.Inner Mongolia Univ, Coll Ecol & Environm, Hohhot 010021, Inner Mongolia, Peoples R China
推荐引用方式 GB/T 7714	Jin, Dongyan,Yan, Ruirui,Li, Linghao,et al. Stocking rate changed the magnitude of carbon sequestration and flow within the plant-soil system of a meadow steppe ecosystem[J]. PLANT AND SOIL,2022,473(1-2):33-47.
APA	Jin, Dongyan.,Yan, Ruirui.,Li, Linghao.,Qi, Jiaguo.,Chen, Jiquan.,...&Xin, Xiaoping.(2022).Stocking rate changed the magnitude of carbon sequestration and flow within the plant-soil system of a meadow steppe ecosystem.PLANT AND SOIL,473(1-2),33-47.
MLA	Jin, Dongyan,et al."Stocking rate changed the magnitude of carbon sequestration and flow within the plant-soil system of a meadow steppe ecosystem".PLANT AND SOIL 473.1-2(2022):33-47.

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