气候变化领域集成服务门户(CCPortal): Effects of Different Grazing Disturbances on the Plant Diversity and Ecological Functions of Alpine Grassland Ecosystem on the Qinghai-Tibetan Plateau

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DOI	10.3389/fpls.2021.765070
	Effects of Different Grazing Disturbances on the Plant Diversity and Ecological Functions of Alpine Grassland Ecosystem on the Qinghai-Tibetan Plateau
	Li, Wenlong; Liu, Chenli; Wang, Wenying; Zhou, Huakun; Xue, Yating; Xu, Jing; Xue, Pengfei; Yan, Hepiao
通讯作者	Liu, CL (通讯作者)，Lanzhou Univ, Coll Pastoral Agr Sci & Technol, State Key Lab Grassland Agroecosyst, Key Lab Grassland Livestock Ind Innovat, Lanzhou, Peoples R China. ; Wang, WY (通讯作者)，Qinghai Normal Univ, Dept Life Sci, Xining, Peoples R China.
发表日期	2021
ISSN	1664-462X
卷号	12
英文摘要	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	SOIL ORGANIC-CARBON ABOVEGROUND BIOMASS LIVESTOCK EXCLUSION NITROGEN STORAGE SHEEP DUNG MEADOW METAANALYSIS PRODUCTIVITY RESPIRATION INTENSITY
英文关键词	grazing management; alpine grassland; species richness; biomass; meta-analysis; Qinghai-Tibet Plateau
语种	英语
WOS研究方向	Plant Sciences
WOS类目	Plant Sciences
WOS记录号	WOS:000735964000001
来源期刊	FRONTIERS IN PLANT SCIENCE
来源机构	中国科学院西北生态环境资源研究院
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/254797
作者单位	[Li, Wenlong; Liu, Chenli; Xue, Pengfei; Yan, Hepiao] Lanzhou Univ, Coll Pastoral Agr Sci & Technol, State Key Lab Grassland Agroecosyst, Key Lab Grassland Livestock Ind Innovat, Lanzhou, Peoples R China; [Wang, Wenying] Qinghai Normal Univ, Dept Life Sci, Xining, Peoples R China; [Zhou, Huakun] Chinese Acad Sci, Key Lab Cold Reg Restorat Ecol, Northwest Inst Plateau Biol, Xining, Peoples R China; [Xue, Yating] Chengdu Univ Informat Technol, Coll Resources & Environm, Chengdu, Peoples R China; [Xu, Jing] 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]. 中国科学院西北生态环境资源研究院,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).