干旱区生态环境知识资源中心(Arid): Widening Gap of Land Evaporation to Reference Evapotranspiration Implies Increasing Vulnerability to Droughts in Hungary

Arid

DOI	10.3311/PPci.21836
	Widening Gap of Land Evaporation to Reference Evapotranspiration Implies Increasing Vulnerability to Droughts in Hungary
	Bader, Laszlo; Szilagyi, Jozsef
通讯作者	Báder, L
来源期刊	PERIODICA POLYTECHNICA-CIVIL ENGINEERING
ISSN	0553-6626
出版年	2023
卷号	67 期号:4 页码:1028-1037
英文摘要	Severe droughts of 2022 in Europe raise the question if one has sufficient knowledge and tools to predict and prevent such events. Analysis of 40 years of meteorological data for Hungary between 1981 and 2020 confirms significant upward trends with p = 0.05 in temperature, relative humidity, and net radiation. Shortwave net radiation has increased by 89.6 mm in water equivalent. Estimates of land evaporation and reference evapotranspiration also show a significantly increasing trend. The gap between them is widening with a significant trend in northeast Hungary. The demand (reference evapotranspiration) is increasing by 2.23 & PLUSMN; 0.3 mm yr-1, while supply (land evaporation) by 1.64 & PLUSMN; 0.2 mm yr-1. The opening gap can be interpreted as a decreasing stability of the energy distribution system, where water is the dominant energy transfer medium for climatic energy. This change could lead to an increased risk of droughts, a symptom of system underperformance. The climatic energy distribution process - a key environmental service -is shifting to a new operating point where more water would be needed to transport energy. These trends call for a process capability approach. Desertification cannot be stopped by chasing water use efficiency and using less water, but vice versa: water scarcity can only be eliminated by ensuring that there is sufficient water available for evapotranspiration. This will raise the priority for initiatives to design and implement a wide range of preventing actions, such as nature-based solutions and water retention measures.
英文关键词	drought complementary relationship of evaporation climatic energy balance hydrological cycle atmospheric circulation
类型	Article
语种	英语
开放获取类型	Green Accepted, gold
收录类别	SCI-E
WOS记录号	WOS:001014579700001
WOS关键词	WATER
WOS类目	Engineering, Civil
WOS研究方向	Engineering
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/397990
推荐引用方式 GB/T 7714	Bader, Laszlo,Szilagyi, Jozsef. Widening Gap of Land Evaporation to Reference Evapotranspiration Implies Increasing Vulnerability to Droughts in Hungary[J],2023,67(4):1028-1037.
APA	Bader, Laszlo,&Szilagyi, Jozsef.(2023).Widening Gap of Land Evaporation to Reference Evapotranspiration Implies Increasing Vulnerability to Droughts in Hungary.PERIODICA POLYTECHNICA-CIVIL ENGINEERING,67(4),1028-1037.
MLA	Bader, Laszlo,et al."Widening Gap of Land Evaporation to Reference Evapotranspiration Implies Increasing Vulnerability to Droughts in Hungary".PERIODICA POLYTECHNICA-CIVIL ENGINEERING 67.4(2023):1028-1037.