干旱区生态环境知识资源中心(Arid): Multivariate drives and their interactive effects on the ratio of transpiration to evapotranspiration over Central Asia ecosystems

Arid

DOI	10.1016/j.ecolmodel.2023.110294
	Multivariate drives and their interactive effects on the ratio of transpiration to evapotranspiration over Central Asia ecosystems
	Zhu, Shihua; Fang, Xia; Cao, Liangzhong; Hang, Xin; Xie, Xiaoping; Sun, Liangxiao; Li, Yachun
通讯作者	Zhu, SH ; Li, YC
来源期刊	ECOLOGICAL MODELLING
ISSN	0304-3800
EISSN	1872-7026
出版年	2023
卷号	478
英文摘要	The ratio of vegetation transpiration to evapotranspiration (T/ET) characterizes the role of vegetation in surface -atmosphere interactions, affecting ecosystem productivity and the global carbon and water balances. Therefore, isolating and identifying the spatiotemporal characteristics of T/ET and its response to the individual and interactive effects of climatic factors will help us better understand the carbon and water cycle characteristics of ecosystems. The arid region of Central Asia has always been in the restricted area of carbon-water cycle ob-servations due to scarce station observations, harsh climatic conditions, and severe anthropogenic disturbances. Using a specific Arid Ecosystem Model (AEM), this study explored the temporal and spatial dynamic patterns of T/ET of different plant functional types (PFTs) in drylands of Central Asia based on multi-climate scenarios, and separated and quantified the independent and interactive effects of different environmental factors. The result indicated that precipitation dominated the areas of 86% (ET, evapotranspiration), 77% (T, transpiration), and 71% (the ratio of T/ET) in the arid region of Central Asia, respectively. The effect of temperature on the ratio of T/ET was negative and slight. And the temperature increase effect is only 9.7% of the negative effect of pre-cipitation. Affected by the insignificant effect of CO2 enrichment on T, the interactive effect between climate change and CO2 effect appear to be little and negative. According to the vegetation growth and the spatial distribution of precipitation, we found that the southern Xinjiang region and the Turgay Plateau in northwestern Kazakhstan are the ecologically vulnerable areas in Central Asian. The results also indicated that general warming in this region may not have a direct and significant impact on vegetation T/ET in the future. We may need to pay more attention to the indirect effect of enhanced evaporation and reduced moisture on T/ET caused by future warming.
英文关键词	The ratio of transpiration to evapotranspiration Arid ecosystem model Climate change Central asia
类型	Article
语种	英语
收录类别	SCI-E
WOS记录号	WOS:000926131200001
WOS关键词	DRYLAND ECOSYSTEMS ; CLIMATE ; CARBON ; MODEL ; CO2 ; PRODUCTIVITY ; GRASSLAND ; RESPONSES ; IMPACTS ; FLUXES
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/2XILL650/396002
推荐引用方式 GB/T 7714	Zhu, Shihua,Fang, Xia,Cao, Liangzhong,et al. Multivariate drives and their interactive effects on the ratio of transpiration to evapotranspiration over Central Asia ecosystems[J],2023,478.
APA	Zhu, Shihua.,Fang, Xia.,Cao, Liangzhong.,Hang, Xin.,Xie, Xiaoping.,...&Li, Yachun.(2023).Multivariate drives and their interactive effects on the ratio of transpiration to evapotranspiration over Central Asia ecosystems.ECOLOGICAL MODELLING,478.
MLA	Zhu, Shihua,et al."Multivariate drives and their interactive effects on the ratio of transpiration to evapotranspiration over Central Asia ecosystems".ECOLOGICAL MODELLING 478(2023).