干旱区生态环境知识资源中心(Arid): A Meta-Analysis on Degraded Alpine Grassland Mediated by Climate Factors: Enlightenment for Ecological Restoration

Arid

DOI	10.3389/fpls.2021.821954
	A Meta-Analysis on Degraded Alpine Grassland Mediated by Climate Factors: Enlightenment for Ecological Restoration
	Yu, Jiale; Wan, Lingfan; Liu, Guohua; Ma, Keming; Cheng, Hao; Shen, Yu; Liu, Yuqing; Su, Xukun
通讯作者	Ma, KM ; Su, XK
来源期刊	FRONTIERS IN PLANT SCIENCE
ISSN	1664-462X
出版年	2022
卷号	12
英文摘要	Alpine grassland is the main ecosystem on the Qinghai-Tibet Plateau (QTP). Degradation and restoration of alpine grassland are related to ecosystem function and production, livelihood, and wellbeing of local people. Although a large number of studies research degraded alpine grassland, there are debates about degradation patterns of alpine grassland in different areas and widely applicable ecological restoration schemes due to the huge area of the QTP. In this study, we used the meta-analysis method to synthesize 80 individual published studies which were conducted to examine aboveground and underground characteristics in non-degradation (ND), light degradation (LD), moderate degradation (MD), heavy degradation (HD), and extreme degradation (ED) of alpine grassland on the QTP. Results showed that aboveground biomass (AGB), belowground biomass (BGB), Shannon-Wiener index (H '), soil moisture (SM), soil organic carbon (SOC), soil total nitrogen (TN), and available nitrogen (AN) gradually decreased along the degradation gradient, whereas soil bulk density (BD) and soil pH gradually increased. In spite of a tendency to soil desertification, losses of other soil nutrients and reduction of enzymes, there was no linear relationship between the variations with degradation gradient. Moreover, the decreasing extent of TN was smaller in areas with higher precipitation and temperature, and the decreasing extent of AGB, SOC, and TN was larger in areas with a higher extent of corresponding variables in the stage of ND during alpine grassland degradation. These findings suggest that in areas with higher precipitation and temperature, reseeding and sward cleavage can be used for restoration on degraded alpine grassland. Fencing and fertilization can be used for alpine grassland restoration in areas with lower precipitation and temperature. Microbial enzymes should not be used to restore degraded alpine grassland on a large scale on the QTP without detailed investigation and analysis. Future studies should pay more attention to the effects of climate factors on degradation processes and specific ecological restoration strategies in different regions of the QTP.
英文关键词	meta-analysis climate factors ecological restoration Qinghai-Tibet Plateau (QTP) alpine grassland degradation
类型	Article
语种	英语
开放获取类型	Green Published, gold
收录类别	SCI-E
WOS记录号	WOS:000749825500001
WOS关键词	QINGHAI-TIBET PLATEAU ; SOIL MICROBIAL COMMUNITIES ; RANGELAND DEGRADATION ; PLANT DIVERSITY ; REGION ; VEGETATION ; MEADOWS ; CARBON ; DYNAMICS ; SYSTEMS
WOS类目	Plant Sciences
WOS研究方向	Plant Sciences
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/376592
推荐引用方式 GB/T 7714	Yu, Jiale,Wan, Lingfan,Liu, Guohua,et al. A Meta-Analysis on Degraded Alpine Grassland Mediated by Climate Factors: Enlightenment for Ecological Restoration[J],2022,12.
APA	Yu, Jiale.,Wan, Lingfan.,Liu, Guohua.,Ma, Keming.,Cheng, Hao.,...&Su, Xukun.(2022).A Meta-Analysis on Degraded Alpine Grassland Mediated by Climate Factors: Enlightenment for Ecological Restoration.FRONTIERS IN PLANT SCIENCE,12.
MLA	Yu, Jiale,et al."A Meta-Analysis on Degraded Alpine Grassland Mediated by Climate Factors: Enlightenment for Ecological Restoration".FRONTIERS IN PLANT SCIENCE 12(2022).