Multiple global changes drive grassland productivity and stability: A meta-analysis

doi:10.1111/1365-2745.13983

CORC > 植物研究所 > 中国科学院植物研究所 > 植被与环境变化国家重点实验室

	Multiple global changes drive grassland productivity and stability: A meta-analysis
	Su, Jishuai ; Zhao, Yujin ; Xu, Fengwei 1,4; Bai, Yongfei 3
刊名	JOURNAL OF ECOLOGY
	2022
卷号	110 期号:12 页码:2850-2869
关键词	ecosystem stability environmental conditions experimental duration global change ecology plant functional group composition primary productivity species richness
ISSN号	0022-0477
DOI	10.1111/1365-2745.13983
文献子类	Article
英文摘要	Temporal stability of primary productivity is the key to stable provisioning of ecosystem services to human beings. Yet, the effects of various global changes on grassland stability remain ambiguous. Here, we conducted a comprehensive meta-analysis based on 1070 multi-year paired observations from 173 studies, to examine the impacts of various global changes on productivity, community stability and plant diversity of grasslands on a global scale. The global change drivers include nitrogen (N) addition, phosphorus (P) addition, N and P addition, precipitation increase, precipitation decrease, elevated CO2 and warming. Global change drivers generally had stronger impacts on grassland productivity than on temporal stability, except for precipitation changes. Community temporal stability was reduced by N addition, N and P addition and precipitation decrease, but was increased by precipitation increase and remained unchanged under P addition, elevated CO2 and warming. In addition, species richness decreased under N addition, N and P addition and precipitation decrease. At the plant functional group level, N and P addition reduced grasses' stability and precipitation increase enhanced forbs' stability. Nutrient additions decreased community stability via increasing the inter-annual variation more than the mean of primary productivity, while precipitation changes mainly affected community temporal stability via changing mean productivity. The negative impacts of global change drivers (i.e. N and P addition, warming) on community temporal stability increased with the degree of species loss but decreased with increasing stability of grasses. Moreover, the negative impacts of nutrient addition and precipitation decrease on community stability was lessened while the positive effect of precipitation increase on community stability was enhanced in grasslands with higher historical precipitation variability, greater soil fertility and longer experimental duration. Synthesis. Our findings demonstrate that N-based nutrient additions and drought destabilise grassland productivity, while precipitation increase enhances community stability. Impacts of global changes on community productivity and stability are mediated by species richness, plant functional group, site-specific environmental conditions (i.e. climate, soil) and experimental duration, which deserve more attention in grassland management practices under future global change scenarios.
学科主题	Plant Sciences ; Ecology
电子版国际标准刊号	1365-2745
出版地	HOBOKEN
WOS关键词	PLANT COMMUNITY RESPONSES ; TALLGRASS PRAIRIE ECOSYSTEM ; CARBON-DIOXIDE ENRICHMENT ; ELEVATED ATMOSPHERIC CO2 ; SIMULATED CLIMATE-CHANGE ; NET PRIMARY PRODUCTIVITY ; NITROGEN CRITICAL LOADS ; SEMINATURAL GRASSLAND ; SPECIES COMPOSITION ; BIOMASS PRODUCTION
WOS研究方向	Science Citation Index Expanded (SCI-EXPANDED)
语种	英语
出版者	WILEY
WOS记录号	WOS:000844142400001
资助机构	National Key R&D Program of China [2017YFA0604702] ; National Natural Science Foundation of China [32192464]
内容类型	期刊论文
源URL	[http://ir.ibcas.ac.cn/handle/2S10CLM1/28576]
专题	植被与环境变化国家重点实验室
作者单位	1.Chinese Acad Sci, Inst Bot, State Key Lab Vegetat & Environm Change, Beijing, Peoples R China 2.Univ Chinese Acad Sci, Coll Resources & Environm, Beijing, Peoples R China 3.Natl Forestry & Grassland Adm, Grassland Res Ctr, Beijing, Peoples R China 4.Chinese Acad Forestry, Res Inst Forestry, Beijing, Peoples R China
推荐引用方式 GB/T 7714	Su, Jishuai,Zhao, Yujin,Xu, Fengwei,et al. Multiple global changes drive grassland productivity and stability: A meta-analysis[J]. JOURNAL OF ECOLOGY,2022,110(12):2850-2869.
APA	Su, Jishuai,Zhao, Yujin,Xu, Fengwei,&Bai, Yongfei.(2022).Multiple global changes drive grassland productivity and stability: A meta-analysis.JOURNAL OF ECOLOGY,110(12),2850-2869.
MLA	Su, Jishuai,et al."Multiple global changes drive grassland productivity and stability: A meta-analysis".JOURNAL OF ECOLOGY 110.12(2022):2850-2869.