Effects of Different Grazing Disturbances on the Plant Diversity and Ecological Functions of Alpine Grassland Ecosystem on the Qinghai-Tibetan Plateau

doi:10.3389/fpls.2021.765070

LZUFE-KMS

	Effects of Different Grazing Disturbances on the Plant Diversity and Ecological Functions of Alpine Grassland Ecosystem on the Qinghai-Tibetan Plateau
	Li, Wenlong 1; Liu, Chenli 1; Wang, Wenying 2; Zhou, Huakun 3; Xue, Yating 4; Xu, Jing 5; Xue, Pengfei 1; Yan, Hepiao 1
	2021-12-13
发表期刊	FRONTIERS IN PLANT SCIENCE
卷号	12
摘要	Grazing is one of the main human disturbance factors in alpine grassland on the Qinghai-Tibet Plateau (QTP), which can directly or indirectly influence the community structures and ecological functions of grassland ecosystems. However, despite extensive field grazing experiments, there is currently no consensus on how different grazing management approaches affect alpine grassland diversity, soil carbon (C), and nitrogen (N). Here, we conducted a meta-analysis of 70 peer-reviewed publications to evaluate the general response of 11 variables related to alpine grassland ecosystems plant diversity and ecological functions to grazing. Overall, the results showed that grazing significantly increased the species richness, Shannon-Wiener index, and Pielou evenness index values by 9.89% (95% CI: 2.75-17.09%), 7.28% (95% CI: 1.68-13.62%), and 3.74% (95% CI: 1.40-6.52%), respectively. Aboveground biomass (AGB) and belowground biomass (BGB) decreased, respectively, by 41.91% (95% CI: -50.91 to -32.88%) and 17.68% (95% CI: -26.94 to -8.52%). Soil organic carbon (SOC), soil total nitrogen (TN), soil C:N ratio, and soil moisture decreased by 13.06% (95% CI: -15.88 to -10.15%), 12.62% (95% CI: -13.35 to -8.61%), 3.27% (95% CI: -4.25 to -2.09%), and 20.75% (95% CI: -27.89 to -13.61%), respectively, whereas, soil bulk density and soil pH increased by 17.46% (95% CI: 11.88-24.53%) and 2.24% (95% CI: 1.01-3.64%), respectively. Specifically, moderate grazing, long-durations (>5 years), and winter grazing contributed to increases in the species richness, Shannon-Wiener index, and Pielou evenness index. However, AGB, BGB, SOC, TN, and soil C:N ratios showed a decrease with enhanced grazing intensity. The response ratio of SOC was positively associated with AGB and BGB but was negatively related to the Shannon-Wiener index and Pielou evenness index. Furthermore, the effects of grazing on plant diversity, AGB, BGB, SOC, and TN in alpine grassland varied with grazing duration, grazing season, livestock type, and grassland type. The findings suggest that grazing should synthesize other appropriate grazing patterns, such as seasonal and rotation grazing, and, furthermore, additional research on grazing management of alpine grassland on the QTP is needed in the future.
关键词	grazing management alpine grassland species richness biomass meta-analysis Qinghai-Tibet Plateau
DOI	10.3389/fpls.2021.765070
收录类别	SCIE
ISSN	1664-462X
语种	英语
WOS研究方向	Plant Sciences
WOS类目	Plant Sciences
WOS记录号	WOS:000735964000001
出版者	FRONTIERS MEDIA SA
原始文献类型	Article
引用统计	被引频次：28[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	http://ir.lzufe.edu.cn/handle/39EH0E1M/34541
专题	兰州财经大学
作者单位	1.Lanzhou Univ, Coll Pastoral Agr Sci & Technol, State Key Lab Grassland Agroecosyst, Key Lab Grassland Livestock Ind Innovat, Lanzhou, Peoples R China; 2.Qinghai Normal Univ, Dept Life Sci, Xining, Peoples R China; 3.Chinese Acad Sci, Key Lab Cold Reg Restorat Ecol, Northwest Inst Plateau Biol, Xining, Peoples R China; 4.Chengdu Univ Informat Technol, Coll Resources & Environm, Chengdu, Peoples R China; 5.Lanzhou Univ Finance & Econ, Sch Agr & Forestry Econ & Management, Lanzhou, Peoples R China
推荐引用方式 GB/T 7714	Li, Wenlong,Liu, Chenli,Wang, Wenying,et al. Effects of Different Grazing Disturbances on the Plant Diversity and Ecological Functions of Alpine Grassland Ecosystem on the Qinghai-Tibetan Plateau[J]. FRONTIERS IN PLANT SCIENCE,2021,12.
APA	Li, Wenlong.,Liu, Chenli.,Wang, Wenying.,Zhou, Huakun.,Xue, Yating.,...&Yan, Hepiao.(2021).Effects of Different Grazing Disturbances on the Plant Diversity and Ecological Functions of Alpine Grassland Ecosystem on the Qinghai-Tibetan Plateau.FRONTIERS IN PLANT SCIENCE,12.
MLA	Li, Wenlong,et al."Effects of Different Grazing Disturbances on the Plant Diversity and Ecological Functions of Alpine Grassland Ecosystem on the Qinghai-Tibetan Plateau".FRONTIERS IN PLANT SCIENCE 12(2021).