干旱区生态环境知识资源中心(Arid): Spatiotemporal changes of gross primary productivity and its response to drought in the Mongolian Plateau under climate change

Arid

DOI	10.1007/s40333-024-0090-3
	Spatiotemporal changes of gross primary productivity and its response to drought in the Mongolian Plateau under climate change
	Zhao, Xuqin; Luo, Min; Meng, Fanhao; Sa, Chula; Bao, Shanhu; Bao, Yuhai
通讯作者	Luo, M
来源期刊	JOURNAL OF ARID LAND
ISSN	1674-6767
EISSN	2194-7783
出版年	2024
卷号	16 期号:1 页码:46-70
英文摘要	Gross primary productivity (GPP) of vegetation is an important constituent of the terrestrial carbon sinks and is significantly influenced by drought. Understanding the impact of droughts on different types of vegetation GPP provides insight into the spatiotemporal variation of terrestrial carbon sinks, aiding efforts to mitigate the detrimental effects of climate change. In this study, we utilized the precipitation and temperature data from the Climatic Research Unit, the standardized precipitation evapotranspiration index (SPEI), the standardized precipitation index (SPI), and the simulated vegetation GPP using the eddy covariance-light use efficiency (EC-LUE) model to analyze the spatiotemporal change of GPP and its response to different drought indices in the Mongolian Plateau during 1982-2018. The main findings indicated that vegetation GPP decreased in 50.53% of the plateau, mainly in its northern and northeastern parts, while it increased in the remaining 49.47% area. Specifically, meadow steppe (78.92%) and deciduous forest (79.46%) witnessed a significant decrease in vegetation GPP, while alpine steppe (75.08%), cropland (76.27%), and sandy vegetation (87.88%) recovered well. Warming aridification areas accounted for 71.39% of the affected areas, while 28.53% of the areas underwent severe aridification, mainly located in the south and central regions. Notably, the warming aridification areas of desert steppe (92.68%) and sandy vegetation (90.24%) were significant. Climate warming was found to amplify the sensitivity of coniferous forest, deciduous forest, meadow steppe, and alpine steppe GPP to drought. Additionally, the drought sensitivity of vegetation GPP in the Mongolian Plateau gradually decreased as altitude increased. The cumulative effect of drought on vegetation GPP persisted for 3.00-8.00 months. The findings of this study will improve the understanding of how drought influences vegetation in arid and semi-arid areas.
英文关键词	gross primary productivity (GPP) climate change warming aridification areas drought sensitivity cumulative effect duration (CED) Mongolian Plateau
类型	Article
语种	英语
收录类别	SCI-E
WOS记录号	WOS:001161482600004
WOS关键词	VEGETATION ; GRASSLANDS ; GROWTH ; MODELS
WOS类目	Environmental Sciences
WOS研究方向	Environmental Sciences & Ecology
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/404362
推荐引用方式 GB/T 7714	Zhao, Xuqin,Luo, Min,Meng, Fanhao,et al. Spatiotemporal changes of gross primary productivity and its response to drought in the Mongolian Plateau under climate change[J],2024,16(1):46-70.
APA	Zhao, Xuqin,Luo, Min,Meng, Fanhao,Sa, Chula,Bao, Shanhu,&Bao, Yuhai.(2024).Spatiotemporal changes of gross primary productivity and its response to drought in the Mongolian Plateau under climate change.JOURNAL OF ARID LAND,16(1),46-70.
MLA	Zhao, Xuqin,et al."Spatiotemporal changes of gross primary productivity and its response to drought in the Mongolian Plateau under climate change".JOURNAL OF ARID LAND 16.1(2024):46-70.