Relevance of Database for the Management of Historical Information on Climatic and Geomorphological Processes Interacting with High Mountain Landscapes

Author(s):  
Guido Nigrelli ◽  
Marta Chiarle
2020 ◽  
pp. 034
Author(s):  
Ludovic Ravanel ◽  
Florence Magnin ◽  
Xavi Gallach ◽  
Philip Deline

Avec le réchauffement du climat, la dégradation du permafrost est à l'origine d'une intensification des processus géomorphologiques sur les versants de haute montagne. Dans les parois rocheuses, les écroulements se multiplient et leur volume augmente, posant des problèmes de sécurité non seulement à haute altitude (infrastructures, alpinistes), mais également pour les fonds de vallée. Cet article présente les travaux récemment menés dans le massif du Mont-Blanc sur la relation entre climat et écroulements à différentes échelles de temps, les effets des épisodes caniculaires et la répartition et l'évolution du permafrost de paroi. Under global warming, permafrost degradation tends to intensify geomorphological processes on high mountain slopes. In the perennially frozen rock walls, the number and volume of rockfalls is increasing, causing safety problems not only at high altitude (infrastructure, mountaineers) but also for the valleys. This article summarizes recent work carried out in the Mont-Blanc massif on the climate-rockfall relationship at different time scales, the effects of heat waves, and the distribution/evolution of rock wall permafrost.


2021 ◽  
Vol 6 (12(81)) ◽  
pp. 4-8
Author(s):  
Р. Калов ◽  
Т. Тогузаев

The growing interest in mountainous areas is accompanied by the expansion of the process of involving unique landscapes in economic circulation, which often leads to a disruption of the natural balance. Consequently, the need for a change in the inertial paradigm, reorientation of the development of society to the path of constructing a sustainable system of environmental management is becoming more acute. This idea can be realized through the creation of ecological and economic zones, which imply the implementation of the concept of landscape organization and proportionality on the basis of the conservation and functionality of mountain landscapes. Background. The main purpose of the article is to actualize the urgent need to find a compromise between the market aspirations of various categories of nature users and the system of protected areas in the mountainous zone of the Kabardino-Balkarian Republic (KBR). To achieve this goal, the following tasks were solved: identification of the peculiarities of mountain valley landscapes in relation to the concepts of "threshold" and "capacity"; analysis of the possibilities of ecological optimization of the use of functional landscapes; Евразийский Союз Ученых (ЕСУ) # 12(81), 2020                                                                  5 search for a compromise option for co-development of the main types of landscapes that are of practical importance. Methods. In accordance with the intended goal and tasks, the authors relied on the following research methods: using the cartographic method, the centers of the impact of large hazardous natural processes on functional landscapes were considered and their paragenetic connections with adjacent fragments of geosystems were analyzed; the route method made it possible to trace the indicative connections between disturbed geo-complexes and anthropogenic pressure on the mountain-valley complexes Bashil - Chegem section of the high-mountain reserve; based on the predictive method, it is recommended to impose an additional tourist and recreational function on mountain-meadow landscapes; on the basis of an experimental method, the achievement of a critical level of sparseness and death of ageold pines within the forest park landscapes of the Elbrus region was confirmed. This publication is based on theoretical and empirical studies of Russian and foreign scientists: Isachenko A.G., Kochurova B.I., Beruchashvili N.L., supplemented by the specification of the territory under consideration.


Author(s):  
Claudio Smiraglia ◽  
Guglielmina Adele Diolaiuti

Mountain glaciers represent an important hydrological and touristic resource, and their recent evolution provides a dramatic evidence of climate change for the general public. Glacier inventories, quantifying glacier characteristics and evolution, are an important tool to describe and manage high mountain glacier environments and Italy has developed a long tradition in this sector. Our country was the first to provide itself with a glacier inventory, compiled by Comitato Glaciologico Italiano and CNR, showing a glacier surface of 530 km2. A recent project, coordinated by Università Statale di Milano with the support of private bodies and the cooperation of Comitato EvK2CNR and Comitato Glaciologico Italiano, led to the development of the new Italian Glacier Inventory, a national atlas produced from the analysis of color orthophotos at high resolution acquired between 2005 and 2011. The New Italian Glacier Inventory lists 903 glaciers, covering an area of 370 km2. The largest part of glacier area is located in Val d’Aosta (36.15% of the total), followed by Lombardia and South Tyrol. 84% of glaciers (considering the number of glaciers) have an area lower than 0.5 km2 and jointly account for 21% of the total glacier surface. Glaciers larger than 1 Km2 make up 9.4% of the total number, but cover 67.8% of the total glacier area. The comparison between data from the New Italian Glacier Inventory and the CGI-CNR inventory (1959-1962) shows a 30% reduction in glacier area in Italy; considering instead the World Glacier Inventory or WGI, published at the end of the ‘80s, which reported 1381 glaciers and an area of 609 km2, glacier loss sums up to 478 glaciers and an area of 239 km2 (-39%). This shrinkage has led to rapid and significant changes to high mountain landscapes, notably glacier fragmentation, an increase in deglaciated areas, the formation of proglacial lakes and the development of pioneer vegetation.


Author(s):  
Oyuunchimeg Tugzhzhav ◽  
◽  
Uyanga Munkhzhargal ◽  
Munkhnasan Sarantuyaa ◽  
◽  
...  

The article examines the patterns of distribution and basic characteristics of the main soil types, reveals the geochemical structure of soils of the arid territory in the central part of the Great Lakes Basin, for example, the region of the DJargalant mountain based on the fundamental theoretical foundations of world soil geography and soil geochemistry. The establishment on this basis of the features of structures within the high mountain, low mountain landscapes and landscapes of the lakeside plain.


2018 ◽  
Vol 58 (3) ◽  
pp. 359-372
Author(s):  
Yu. V. Efremov ◽  
A. V. Zimnitsky ◽  
D. Yu. Shulyakov ◽  
D. A. Lipilin

The article presents results of investigation of snowfields on the Lagonaky plateau: conditions of their formation, distribution and dynamics. Snow patches are the most characteristic elements of the high-mountain landscapes of the Lagonaky plateau. In warm seasons, they are widely distributed on local flat-topped ridges of the Lagonaky: Abadzeshsh Murzikao, Kamennoe and others, as well as on the mountain masses Fisht, Pshehasu, Oshten, and Nagoychuk. Morphological and climatic conditions of the Lagonaky Highlands are unique and favorable for formation of snow patches and long preservation of them during the spring-summer periods. These conditions are high mountain ridges with flat tops, negative karst forms of the relief as well as a favorable wind regime with long winter snow storms and heavy snowfalls. Snow patches result from snow transport and accumulation after strong snow-drift on the leeward slopes. The avalanche snow patches arise when avalanches release from steep and long slopes of the above mountain ranges. Permanent snow patches are usually formed at the same places, and duration of their existence depends on sizes and a degree of shading. At the same time, even relatively small snow patches (100–200 thousand m3) can be preserved if they are located in narrow fissures (for example, the area of the Maly Fisht Glacier). In the last 3–5 years, the permanent snow patches melt completely, which is probably a result of small amount of solid precipitation during the cold season and the relatively high air temperatures in the warm time (standard deviation is 0.8–1.0 °C above the normal).


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