Aboveground Biomass in China's Managed Grasslands and Their Responses to Environmental and Management Variations

doi:10.3390/agronomy12122913

	Aboveground Biomass in China's Managed Grasslands and Their Responses to Environmental and Management Variations
	Meng, Huimei ; Yang, Jingrui 1,2; Sun, Wenjuan 3; Xiao, Liujun 4; Wang, Guocheng 5,6
	2022
发表期刊	AGRONOMY-BASEL
卷号	12 期号:12
摘要	Aboveground biomass (AGB) in managed grasslands can vary across a suite of environmental and management conditions; however, there lacks a quantitative assessment at the national scale of China. Although the potential effects of individual drivers (e.g., species, nutrient fertilization, and water management) have been examined in China's managed grasslands, no attempts have been made to comprehensively assess the effects of multiple variables on AGB. Using a meta-data analysis approach, we created a database composed of AGB and associated attributes of managed grasslands in China. The database was used to assess the responses of AGB to anthropogenic factors, in addition to a suite of natural variables including climate, soil, and topography. The average AGB in managed grasslands of China is approximately 630 g m(-2) of dry matter, ranging from 55 to 2172 g m(-2) (95% confidence interval). Medicago sativa is the most widely planted species in China's managed grasslands, followed by Elymus dahuricus and Bromus japonicus. The national average AGB of these three species was around 692, 530, and 856 g m(-2), respectively. For each species, AGB shows a large discrepancy across different places. In general, grassland AGB depends substantially on species, environments, and management practices. The dependence can be well described by a linear mixed-effects regression in which a series of biotic and abiotic factors are used as predictors. We highlight that establishing managed grassland can potentially contribute to not only AGB enhancement, but also grassland restoration on degraded natural grasslands.
关键词	aboveground biomass managed grasslands plant species management climate soil topography
学科领域	Agronomy ; Plant Sciences
DOI	10.3390/agronomy12122913
收录类别	SCI
语种	英语
WOS关键词	NET PRIMARY PRODUCTIVITY ; LAND-USE CHANGE ; SOIL CARBON ; ALPINE GRASSLAND ; TIBETAN PLATEAU ; NITROGEN POOLS ; WATER ; DEGRADATION ; IRRIGATION ; ECOSYSTEMS
WOS研究方向	Science Citation Index Expanded (SCI-EXPANDED)
WOS记录号	WOS:000902058700001
出版者	MDPI
文献子类	Article
出版地	BASEL
EISSN	2073-4395
资助机构	Strategic Priority Research Program of the Chinese Academy of Sciences ; Major Program for Basic Research Project of Yunnan Province [XDA26010103] ; [202101BC070002]
作者邮箱	wanggc@mail.iap.ac.cn
作品OA属性	gold
引用统计	被引频次：2[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/2S10CLM1/28818
专题	植被与环境变化国家重点实验室
作者单位	1.Tibet Univ, Coll Sci, Lhasa 850000, Peoples R China 2.Chinese Acad Sci, Inst Soil Sci, State Key Lab Soil & Sustainable Agr, Nanjing 210008, Peoples R China 3.Univ Chinese Acad Sci, Beijing 100049, Peoples R China 4.Chinese Acad Sci, Inst Bot, State Key Lab Vegetat & Environm Change, Beijing 100093, Peoples R China 5.Zhejiang Univ, Inst Agr Remote Sensing & Informat Technol, Coll Environm Resource Sci, Hangzhou 310058, Peoples R China 6.Chinese Acad Sci, Inst Atmospher Phys, LAPC, Beijing 100029, Peoples R China 7.Key Lab Agr Remote Sensing & Informat Syst, Hangzhou 310058, Peoples R China
推荐引用方式 GB/T 7714	Meng, Huimei,Yang, Jingrui,Sun, Wenjuan,et al. Aboveground Biomass in China's Managed Grasslands and Their Responses to Environmental and Management Variations[J]. AGRONOMY-BASEL,2022,12(12).
APA	Meng, Huimei,Yang, Jingrui,Sun, Wenjuan,Xiao, Liujun,&Wang, Guocheng.(2022).Aboveground Biomass in China's Managed Grasslands and Their Responses to Environmental and Management Variations.AGRONOMY-BASEL,12(12).
MLA	Meng, Huimei,et al."Aboveground Biomass in China's Managed Grasslands and Their Responses to Environmental and Management Variations".AGRONOMY-BASEL 12.12(2022).

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