干旱区生态环境知识资源中心(Arid): Spatiotemporal variation of marsh vegetation productivity and climatic effects in Inner Mongolia, China

Arid

DOI	10.3389/fevo.2023.1138965
	Spatiotemporal variation of marsh vegetation productivity and climatic effects in Inner Mongolia, China
	Wang, Yanji; Zhang, Jiaqi; Shen, Xiangjin; Ma, Rong; Liu, Yiwen; Wu, Liyuan; Tong, Shouzheng; Jiang, Ming; Lu, Xianguo
通讯作者	Shen, XJ ; Tong, SZ
来源期刊	FRONTIERS IN ECOLOGY AND EVOLUTION
ISSN	2296-701X
出版年	2023
卷号	11
英文摘要	Net primary productivity (NPP) is a vital ecological index that reflects the ecological function and carbon sequestration of marsh ecosystem. Inner Mongolia has a large area of marshes, which play a crucial role in the East Asian carbon cycle. Under the influence of climate change, the NPP of Inner Mongolian marsh has changed significantly in the past few decades, but the spatiotemporal variation in marsh vegetation NPP and how climate change affects marsh NPP remain unclear. This study explores, for the first time, the spatiotemporal variation of marsh NPP and its response to climatic change in Inner Mongolia based on the MODIS-NPP and climate datasets. We find that the long-term average annual NPP of marsh is 339.85 g.C/m(2) and the marsh NPP shows a significantly increasing trend (4.44 g.C/m(2)/a; p < 0.01) over Inner Mongolia during 2000-2020. Spatially, the most prominent increase trend of NPP is mainly distributed in the northeast of the region (Greater Khingan Mountains). The partial correlation results show that increasing autumn and summer precipitation can increase the NPP of marsh vegetation over Inner Mongolia. Regarding the temperature effects, we observe a strong asymmetric effect of maximum (T-max) and minimum (T-min) temperature on annual NPP. A high spring Tmax can markedly increase marsh NPP in Inner Mongolia, whereas a high Tmin can significantly reduce it. In contrast to spring temperature effects on NPP, a high summer Tmax can decrease NPP, whereas a high T-min can increase it. Our results suggest different effects of seasonal climate conditions on marsh vegetation productivity and highlight the influences of daytime and night-time temperatures. This should be considered in simulating and predicting marsh carbon sequestration in global arid and semi-arid regions.
英文关键词	marsh net primary productivity climate change vegetation Inner Mongolia
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:001023706600001
WOS关键词	NET PRIMARY PRODUCTIVITY ; WETLAND ; GRASSLAND ; NPP ; TEMPERATURE ; ECOSYSTEMS ; PHENOLOGY ; DAYTIME ; PLANTS
WOS类目	Ecology
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/2XILL650/396494
推荐引用方式 GB/T 7714	Wang, Yanji,Zhang, Jiaqi,Shen, Xiangjin,et al. Spatiotemporal variation of marsh vegetation productivity and climatic effects in Inner Mongolia, China[J],2023,11.
APA	Wang, Yanji.,Zhang, Jiaqi.,Shen, Xiangjin.,Ma, Rong.,Liu, Yiwen.,...&Lu, Xianguo.(2023).Spatiotemporal variation of marsh vegetation productivity and climatic effects in Inner Mongolia, China.FRONTIERS IN ECOLOGY AND EVOLUTION,11.
MLA	Wang, Yanji,et al."Spatiotemporal variation of marsh vegetation productivity and climatic effects in Inner Mongolia, China".FRONTIERS IN ECOLOGY AND EVOLUTION 11(2023).