色楞格河北部(俄罗斯)部分冰川的分布及其在生态系统功能中的作用和对聚落的影响

Q2 Agricultural and Biological Sciences

Geography, Environment, Sustainability Pub Date : 2023-04-08 DOI:10.24057/2071-9388-2022-052

V. N. Chernykh, A. Ayurzhanaev, B. Sodnomov, E. Garmaev, B. Z. Tzydypov, A. Shikhov, M. A. Zharnikova, B. O. Gurzhapov, A. G. Suprunenko, A. Dashtseren

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引用次数: 0

摘要

塞伦加河流域北部（俄罗斯）结冰的分布及其在生态系统功能和对定居的影响结冰是永久冻土地区景观的组成部分。它在冬季形成于河谷、河床和地下水排泄处，与冰冻圈的其他物体不同，它具有活跃的动力学特征。本研究的主要目的是确定冰凌在塞伦加河流域俄罗斯部分自然系统功能中的作用和意义，以及它们对定居点的影响。第一张冰凌分布图是根据陆地卫星的图像绘制的。总共发现了15500多处结冰。在森林景观中观察到的冰凌浓度最高。森林草原带的冰凌具有明显的形态计量特征。它们通常形成在面积超过1平方公里的巨大区域。阶梯冰约占研究区域所有对象的8%。结冰在森林，特别是森林草原生态系统的运作中发挥着重要作用，因为它们在很大程度上决定了小流域水流的再分配。在总含水量增加的时期，结冰成为导致紧急情况的一个因素。塞伦加河流域俄罗斯部分的65个定居点已经确定了潜在的淹没风险。

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Distribution Of Icings In The Northern (Russian) Part Of The Selenga River Basin And Their Role In The Functioning Of Ecosystems And Impact On Settlements

Distribution Of Icings In The Northern (Russian) Part Of The Selenga River Basin And Their Role In The Functioning Of Ecosystems And Impact On SettlementsIcing is an integral part of the landscape in areas with permafrost. It is formed in winter in river valleys, along stream beds, in places of groundwater discharge and, unlike other objects of the cryosphere, is characterized by active dynamics. The main objective of this study is to identify the role and significance of icings in the functioning of natural systems of Russian part of the Selenga River basin, as well as their impact on settlements.The first map of icings distribution was created based on Landsat imagery. In total, more than 15,500 icings were found. The highest concentration of icings is observed for forest landscapes. Icings in the forest-steppe belt are distinguished by their morphometric characteristics. They are often formed in giant areas of more than 1 km2. Steppe icings account for about 8 % of all objects of the study area. Icings play an important role in the functioning of forest and, in particular, foreststeppe ecosystems, as they largely determine the redistribution of water flow in small watersheds.During the period of increasing total water content, icings become a factor contributing to emergency situations. The potential risk of inundation has been established for 65 settlements in the Russian part of the Selenga River basin.

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来源期刊

Geography, Environment, Sustainability Social Sciences-Geography, Planning and Development

CiteScore

2.50

自引率

0.00%

发文量

审稿时长

12 weeks

期刊介绍： Journal “GEOGRAPHY, ENVIRONMENT, SUSTAINABILITY” is founded by the Faculty of Geography of Lomonosov Moscow State University, The Russian Geographical Society and by the Institute of Geography of RAS. It is the official journal of Russian Geographical Society, and a fully open access journal. Journal “GEOGRAPHY, ENVIRONMENT, SUSTAINABILITY” publishes original, innovative, interdisciplinary and timely research letter articles and concise reviews on studies of the Earth and its environment scientific field. This goal covers a broad spectrum of scientific research areas (physical-, social-, economic-, cultural geography, environmental sciences and sustainable development) and also considers contemporary and widely used research methods, such as geoinformatics, cartography, remote sensing (including from space), geophysics, geochemistry, etc. “GEOGRAPHY, ENVIRONMENT, SUSTAINABILITY” is the only original English-language journal in the field of geography and environmental sciences published in Russia. It is supposed to be an outlet from the Russian-speaking countries to Europe and an inlet from Europe to the Russian-speaking countries regarding environmental and Earth sciences, geography and sustainability. The main sections of the journal are the theory of geography and ecology, the theory of sustainable development, use of natural resources, natural resources assessment, global and regional changes of environment and climate, social-economical geography, ecological regional planning, sustainable regional development, applied aspects of geography and ecology, geoinformatics and ecological cartography, ecological problems of oil and gas sector, nature conservations, health and environment, and education for sustainable development. Articles are freely available to both subscribers and the wider public with permitted reuse.