干旱区生态环境知识资源中心(Arid): THE CURRENT STATE AND DYNAMICS OF GEOSYSTEMS IN THE SOUTH-EAST OF THE RUSSIAN PLAIN (BY THE EXAMPLE OF THE NATURAL PARKS IN VOLGOGRAD REGION)

Arid

DOI	10.18470/1992-1098-2018-1-116-127
	THE CURRENT STATE AND DYNAMICS OF GEOSYSTEMS IN THE SOUTH-EAST OF THE RUSSIAN PLAIN (BY THE EXAMPLE OF THE NATURAL PARKS IN VOLGOGRAD REGION)
	Ryabinina, Natalia O.; Kanishchev, Sergey N.; Shinkarenko, Stanislav S.
通讯作者	Ryabinina, NO
来源期刊	SOUTH OF RUSSIA-ECOLOGY DEVELOPMENT
ISSN	1992-1098
EISSN	2413-0958
出版年	2018
卷号	13 期号:1 页码:116-127
英文摘要	Aim. The current state, variability, dynamics of natural and natural-anthropogenic landscapes of dry steppes and desert steppe of the south-east of the Russian plain were studied. Methods. Methods of field complex landscape studies, remote methods of decoding space images and estimating the state of geosystems based on NDVI were used. Results. On the basis of long-term landscape-ecological monitoring on the territory of the Donskoy and Eltonsky natural parks of the Volgograd region, it is established that the main causes of disturbance of geosystems and desertification are fires, spontaneous livestock raising, overgrazing. After the impact of fire, the biological diversity of geosystems is reduced, the processes of self-regulation are weakened, and resistance to external influences is reduced. The structure is simplified, the homogeneity of the vegetation cover increases, the height of the grass stand is reduced 2-3 times and the total projective cover is reduced 1,5-2 times, the tree and shrub vegetation dies, the proportion of polynia and weeds grows. For a long term (3-5 years), the bioproductiveness of geosystems is significantly reduced 1,5-3 times. The upper layer (2-4 cm) of the humus horizon burns out, the fertility of soils decreases. The local climate of pyrogenic geosystems is aridized, evaporation increases, soil moisture deficit increases, groundwater level decreases, springs run out. The processes of wind and water erosion are activated. Fires destroy places of reproduction, recreation, feeding of animals, habitats of rare and endangered species. Conclusions. Pyrogenic transformation is the most serious real threat to the biological and landscape diversity of the steppes.
英文关键词	landscapes of steppe and desert steppe dynamics of geosystems bioproductivity south-east of the Russian Plain specially protected natural territories natural park
类型	Article
语种	Russian
开放获取类型	DOAJ Gold
收录类别	ESCI
WOS记录号	WOS:000459109200009
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/2XILL650/333306
作者单位	[Ryabinina, Natalia O.; Kanishchev, Sergey N.] Volgograd State Univ, Dept Geog & Cartog, Inst Nat Sci, Univ Sky St,100, Volgograd 400062, Russia; [Shinkarenko, Stanislav S.] Russian Acad Sci, Fed Sci Ctr Agroecol Complex Meliorat & Protect A, Agr, Volgograd, Russia
推荐引用方式 GB/T 7714	Ryabinina, Natalia O.,Kanishchev, Sergey N.,Shinkarenko, Stanislav S.. THE CURRENT STATE AND DYNAMICS OF GEOSYSTEMS IN THE SOUTH-EAST OF THE RUSSIAN PLAIN (BY THE EXAMPLE OF THE NATURAL PARKS IN VOLGOGRAD REGION)[J],2018,13(1):116-127.
APA	Ryabinina, Natalia O.,Kanishchev, Sergey N.,&Shinkarenko, Stanislav S..(2018).THE CURRENT STATE AND DYNAMICS OF GEOSYSTEMS IN THE SOUTH-EAST OF THE RUSSIAN PLAIN (BY THE EXAMPLE OF THE NATURAL PARKS IN VOLGOGRAD REGION).SOUTH OF RUSSIA-ECOLOGY DEVELOPMENT,13(1),116-127.
MLA	Ryabinina, Natalia O.,et al."THE CURRENT STATE AND DYNAMICS OF GEOSYSTEMS IN THE SOUTH-EAST OF THE RUSSIAN PLAIN (BY THE EXAMPLE OF THE NATURAL PARKS IN VOLGOGRAD REGION)".SOUTH OF RUSSIA-ECOLOGY DEVELOPMENT 13.1(2018):116-127.