Different grassland managements significantly change carbon fluxes in an alpine meadow

doi:10.3389/fpls.2022.1000558

	Different grassland managements significantly change carbon fluxes in an alpine meadow
	Xu, Ganjun ; Kang, Xiaoming 1,2,3; Li, Wei 1,2,3; Li, Yong 1,2,3; Chai, Yongyu ; Wu, Shengyi ; Zhang, Xiaodong 1,2,3; Yan, Zhongqing 1,2,3; Kang, Enze 4,5; Yang, Ao 1,2,3; Niu, Yuechuan 6; Wang, Xiaodong 1,2,3; Yan, Liang 1,2,3
	2022
发表期刊	FRONTIERS IN PLANT SCIENCE
ISSN	1664-462X
卷号	13
摘要	Alpine meadow plays vital roles in regional animal husbandry and the ecological environment. However, different grassland managements affect the structure and function of the alpine meadow. In this study, we selected three typical grassland managements including free grazing, enclosure, and artificial grass planting and conducted a field survey to study the effects of grassland managements on carbon fluxes in an alpine meadow. The carbon fluxes were observed by static chamber and environmental factors including vegetation and soil characteristics were measured simultaneously. Our results show that the alpine meadow was a CO2 and CH4 sink, and grassland managements had a significant effect on all CO2 fluxes, including gross ecosystem production (GEP, P< 0.001), net ecosystem production (NEP, P< 0.001) and ecosystem respiration (ER, P< 0.001) but had no significant effect on CH4 fluxes (P > 0.05). The ranking of GEP under the different grassland managements was enclosure > free grazing > artificial grass planting. Furthermore, NEP and ER at enclosure plots were significantly higher than those of the free grazing and artificial grass planting plots. In addition, different grassland managements also affected the vegetation and soil characteristics of the alpine meadow. The aboveground biomass of artificial grass planting was significantly higher than that of the free grazing and enclosure plots. The vegetation coverage under three different grassland managements was ranked in the order of enclosure > artificial grass planting > free grazing and significant differences were observed among them. Moreover, significant differences in the number of species (P< 0.01) and the Margalef richness index (P< 0.05) were detected under three different grassland managements. Further analysis of the relationship between environmental factors and carbon fluxes revealed that GEP and NEP of the alpine meadow were positively correlated with vegetation coverage, the number of species, and the Margalef richness index. Therefore, grassland restoration should be configured with multiple species, which could improve carbon sink capacity while considering the functions of grassland restoration and production.
关键词	alpine meadow grazing enclosure artificial grass planting carbon fluxes
学科领域	Plant Sciences
DOI	10.3389/fpls.2022.1000558
收录类别	SCI
语种	英语
WOS关键词	GRAZING EXCLUSION ; ARTIFICIAL GRASSLANDS ; TEMPORAL DYNAMICS ; NITROGEN POOLS ; SOIL ; DEGRADATION ; MULTIFUNCTIONALITY ; PRODUCTIVITY ; TEMPERATURE ; RESTORATION
WOS研究方向	Science Citation Index Expanded (SCI-EXPANDED)
WOS记录号	WOS:000875781400001
出版者	FRONTIERS MEDIA SA
文献子类	Article
出版地	LAUSANNE
资助机构	Scientific and Technological Innovation Project of Northwest Surveying and Planning Institute of National Forestry and Grassland Administration ; National Natural Science Foundation of China ; [GLXD-2021-QT-20] ; [42041005]
作者邮箱	yanliang@caf.ac.cn
作品OA属性	Green Published, gold
引用统计	被引频次：4[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/2S10CLM1/29020
专题	植被与环境变化国家重点实验室
作者单位	1.Natl Forestry & Grassland Adm, Inst Northwest Surveying & Planning, Xian, Peoples R China 2.Chinese Acad Forestry, Inst Ecol Conservat & Restorat, Wetland Res Ctr, Beijing, Peoples R China 3.Tibetan Autonomous Prefecture Aba, Sichuan Zoige Wetland Ecosyst Res Stn, Chengdu, Sichuan, Peoples R China 4.Chinese Acad Forestry, Beijing Key Lab Wetland Serv & Restorat, Beijing, Peoples R China 5.Chinese Acad Sci, Inst Bot, Beijing, Peoples R China 6.Univ Chinese Acad Sci, Beijing, Peoples R China 7.Univ Chinese Acad Sci, Coll Life Sci, Beijing, Peoples R China
推荐引用方式 GB/T 7714	Xu, Ganjun,Kang, Xiaoming,Li, Wei,et al. Different grassland managements significantly change carbon fluxes in an alpine meadow[J]. FRONTIERS IN PLANT SCIENCE,2022,13.
APA	Xu, Ganjun.,Kang, Xiaoming.,Li, Wei.,Li, Yong.,Chai, Yongyu.,...&Yan, Liang.(2022).Different grassland managements significantly change carbon fluxes in an alpine meadow.FRONTIERS IN PLANT SCIENCE,13.
MLA	Xu, Ganjun,et al."Different grassland managements significantly change carbon fluxes in an alpine meadow".FRONTIERS IN PLANT SCIENCE 13(2022).

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