干旱区生态环境知识资源中心(Arid): Characteristics of Spring-Summer Drought in Dry and Wet Periods in the South of European Russia

Arid

DOI	10.1134/S2079096120040216
	Characteristics of Spring-Summer Drought in Dry and Wet Periods in the South of European Russia
	Zolotokrylin, A. N.; Titkova, T. B.; Cherenkova, E. A.
通讯作者	Zolotokrylin, AN
来源期刊	ARID ECOSYSTEMS
ISSN	2079-0961
EISSN	2079-0988
出版年	2020
卷号	10 期号:4 页码:322-328
英文摘要	The distribution pattern of the characteristics of spring-summer droughts during periods of increased and decreased annual wetting in 12 administrative entities of the south of European Russia in 1901-2018 are studied. During this time, four periods of different humidification conditions (alternating wetter, dry, wet and again dry periods) of different durations are well traced according to anomalies in the aridity index in seven regions: Kursk, Belgorod, Voronezh, Saratov, Volgograd, and Rostov oblasts and the Republic of Kalmykia. A desiccation period was noted in Samara and Astrakhan oblasts from the beginning to the middle of the 20th century. The desiccation period then gave way to a wetter one. The most frequent change of periods with different moisture conditions was observed in Stavropol krai, where five alternating periods were identified. It has been established that the frequency of spring-summer droughts is consistent with the long-term humidification conditions. According to the standardized precipitation index, it increases on average by 1.5 times in the dry period with a slight increase in drought intensity. The conditions of increased humidification observed in all of the examined administrative subjects in the second half of the 20th century were replaced by drier conditions at the beginning of the 21st century. The spread of more arid conditions began in the eastern oblasts. The development of the dry period in the 21st century is confirmed by the distribution of the NDVI vegetation index in the negative trend. In the absence of statistically significant aridization trends for more than a century, all of the considered oblasts of the south of European Russia undergo long, intracentury periods of aridization strengthening and weakening, which are characterized by significant differences in the frequency and intensity of spring-summer droughts.
英文关键词	periods of moisture aridization aridity index drought SPI NDVI
类型	Article
语种	英语
收录类别	ESCI
WOS记录号	WOS:000582877700010
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/2XILL650/334705
作者单位	[Zolotokrylin, A. N.; Titkova, T. B.; Cherenkova, E. A.] Russian Acad Sci, Inst Geog, Moscow 119017, Russia
推荐引用方式 GB/T 7714	Zolotokrylin, A. N.,Titkova, T. B.,Cherenkova, E. A.. Characteristics of Spring-Summer Drought in Dry and Wet Periods in the South of European Russia[J],2020,10(4):322-328.
APA	Zolotokrylin, A. N.,Titkova, T. B.,&Cherenkova, E. A..(2020).Characteristics of Spring-Summer Drought in Dry and Wet Periods in the South of European Russia.ARID ECOSYSTEMS,10(4),322-328.
MLA	Zolotokrylin, A. N.,et al."Characteristics of Spring-Summer Drought in Dry and Wet Periods in the South of European Russia".ARID ECOSYSTEMS 10.4(2020):322-328.