干旱区生态环境知识资源中心(Arid): Spatiotemporal variation of net primary productivity influenced by climatic variables in the karst area of China

Arid

DOI	10.1080/10106049.2022.2129845
	Spatiotemporal variation of net primary productivity influenced by climatic variables in the karst area of China
	Ma, Bingxin; Jing, Juanli; Liu, Bing; Xu, Yong; Dou, Shiqing; He, Hongchang
通讯作者	Jing, JL
来源期刊	GEOCARTO INTERNATIONAL
ISSN	1010-6049
EISSN	1752-0762
出版年	2022
英文摘要	Karst area is one of the most ecologically fragile regions. Monitoring spatial and temporal variation of net primary productivity (NPP) and its response to climate change are essential for vegetation restoration. In this study, we used the CASA (Carnegie-Ames-Stanford Approach) model to estimate the NPP in the karst area of China during 2001 to 2019. We analyzed the response of multi-scale NPP to climate change by using Theil-Sen Median trend analysis, partial correlation analysis and time lag analysis. The results showed that the average NPP was 399.06 gC center dot m(-2), decreased from southeast to northwest, with an annual increase rate of 1.93 gC center dot m(-2) from 2001 to 2019. The broadleaf forest had the highest NPP, and summer NPP accounted for 48.12% of annual NPP. Climate change significantly promotes the increase of NPP in the early growing season. Partial correlation analysis showed that NPP was more correlated with precipitation (0.20) than temperature (0.12), this phenomenon was more pronounced in some arid regions. Where precipitation caused a decrease in NPP during the rainy season. The time lag of NPP to temperature change was shorter than precipitation, indicating that NPP is more sensitive to temperature in most regions. The time lag of NPP to temperature changes was very short in spring. Whereas, even in arid regions, the time lag of NPP to precipitation changes was still long. This study can deepen our knowledge of the response of NPP to climate change in karst ecosystems.
英文关键词	Net primary production Karst area Climatic factors Time lag CASA
类型	Article ; Early Access
语种	英语
开放获取类型	hybrid
收录类别	SCI-E
WOS记录号	WOS:000864804000001
WOS关键词	VEGETATION DYNAMICS ; TERRESTRIAL ; CARBON ; COEFFICIENT ; BIOSPHERE ; PATTERNS ; BIOMASS ; IMPACT ; NDVI
WOS类目	Environmental Sciences ; Geosciences, Multidisciplinary ; Remote Sensing ; Imaging Science & Photographic Technology
WOS研究方向	Environmental Sciences & Ecology ; Geology ; Remote Sensing ; Imaging Science & Photographic Technology
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/392904
推荐引用方式 GB/T 7714	Ma, Bingxin,Jing, Juanli,Liu, Bing,et al. Spatiotemporal variation of net primary productivity influenced by climatic variables in the karst area of China[J],2022.
APA	Ma, Bingxin,Jing, Juanli,Liu, Bing,Xu, Yong,Dou, Shiqing,&He, Hongchang.(2022).Spatiotemporal variation of net primary productivity influenced by climatic variables in the karst area of China.GEOCARTO INTERNATIONAL.
MLA	Ma, Bingxin,et al."Spatiotemporal variation of net primary productivity influenced by climatic variables in the karst area of China".GEOCARTO INTERNATIONAL (2022).