干旱区生态环境知识资源中心(Arid): Carbon use efficiency of terrestrial ecosystems in desert/grassland biome transition zone: A case in Ningxia province, northwest China

Arid

DOI	10.1016/j.ecolind.2020.106971
	Carbon use efficiency of terrestrial ecosystems in desert/grassland biome transition zone: A case in Ningxia province, northwest China
	Du, Lingtong; Gong, Fei; Zeng, Yijian; Ma, Longlong; Qiao, Chenglong; Wu, Hongyue
通讯作者	Du, LT
来源期刊	ECOLOGICAL INDICATORS
ISSN	1470-160X
EISSN	1872-7034
出版年	2021
卷号	120
英文摘要	Terrestrial ecosystems play a critical role in the global carbon cycle and the feedbacks of carbon cycle will significantly impact future climate change. It's worth noting that semi-arid biomes in the Southern Hemisphere have driven the global carbon sink anomaly over the past 30 years. However, how does the desert/grassland biome transition zone, a part of arid and semi-arid biomes, respond to climate change and anthropogenic ac-tivities in carbon use efficiency (CUE) is still unclear. Therefore, based on the CUE of terrestrial ecosystem estimated by the moderate resolution imaging spectroradiometer (MODIS) data from 2001 to 2017, the spatial and temporal characteristics of CUE in Ningxia province, a typical desert/grassland biome transition zone, were studied. The main driving factors in climate and ecosystem were also investigated by partial correlation analysis. Results showed that the CUE of terrestrial ecosystems in desert/grassland biome transition zone is higher than 0.5, a constant value of CUE defined in many ecological models. However, the CUE varies with the ecosystem types even when they are located in the same climatic zone. There is a decreasing trend of annual CUE in the period of 2001-2017 and most of them will persistently decrease in future at pixels scales, which could be mainly caused by the land use change. Comparing the habitat conditions, we found the lower canopy density and water stress could increase the CUE in the same ecosystem, which indicates the plant could increase their efficiency of transforming carbon from the atmosphere to terrestrial biomass in adverse environment. Finally, the CUE significantly correlated to net primary productivity (NPP) and autotrophic respiration (Ra) in ecosystem processes, meanwhile water stress (lower precipitation) and heat stress (higher temperature) could increase the CUE, but the temperature has variable impacts in different ecosystem.
英文关键词	Carbon use efficiency (CUE) Terrestrial ecosystem Net primary productivity (NPP) Desert/grassland biome transition zone Arid and semi-arid region MODIS
类型	Article
语种	英语
开放获取类型	gold
收录类别	SCI-E
WOS记录号	WOS:000591906400002
WOS关键词	GROSS PRIMARY PRODUCTIVITY ; NET PRIMARY PRODUCTION ; WATER-USE EFFICIENCY ; CLIMATE-CHANGE ; CONSTANT FRACTION ; FOREST ; MODIS ; DROUGHT ; RESTORATION ; SEQUESTRATION
WOS类目	Biodiversity Conservation ; Environmental Sciences
WOS研究方向	Biodiversity & Conservation ; Environmental Sciences & Ecology
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/328024
作者单位	[Du, Lingtong; Gong, Fei; Ma, Longlong; Qiao, Chenglong; Wu, Hongyue] Ningxia Univ, Breeding Base State Key Lab Land Degradat & Ecol, Yinchuan 750021, Ningxia, Peoples R China; [Du, Lingtong; Gong, Fei; Ma, Longlong; Qiao, Chenglong; Wu, Hongyue] Ningxia Univ, Key Lab Restorat & Reconstruct Degraded Ecosyst N, Minist Educ, Yinchuan 750021, Ningxia, Peoples R China; [Du, Lingtong; Zeng, Yijian] Univ Twente, Fac Geoinformat Sci & Earth Observat, NL-7500 AE Enschede, Netherlands
推荐引用方式 GB/T 7714	Du, Lingtong,Gong, Fei,Zeng, Yijian,et al. Carbon use efficiency of terrestrial ecosystems in desert/grassland biome transition zone: A case in Ningxia province, northwest China[J],2021,120.
APA	Du, Lingtong,Gong, Fei,Zeng, Yijian,Ma, Longlong,Qiao, Chenglong,&Wu, Hongyue.(2021).Carbon use efficiency of terrestrial ecosystems in desert/grassland biome transition zone: A case in Ningxia province, northwest China.ECOLOGICAL INDICATORS,120.
MLA	Du, Lingtong,et al."Carbon use efficiency of terrestrial ecosystems in desert/grassland biome transition zone: A case in Ningxia province, northwest China".ECOLOGICAL INDICATORS 120(2021).