Landscape Reading for Alpine Rivers: A Case Study from the river Biya

Q2 Agricultural and Biological Sciences
L. Schmalfuß, C. Hauer, L. Yanygina, M. Schletterer
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引用次数: 4

Abstract

Anthropogenic stressors have altered the hydromorphological characteristics of rivers worldwide. Environmental guiding principles are essential for planning sustainable river restoration measures. The alpine river Biya, located in the Russian Altai mountains, originates from Lake Teletskoye and joins the Katun near Biysk, forming the Ob. The Biya represents a hydromorphological reference system in anthropogenically ‘least-disturbed’ condition. The presented study aimed to assess the river’s undisturbed morphology in relationship with the geological history of three different river stretches based on an adapted landscape reading approach using remote sensing information (ASTER GDEM v3). The established widths of the active channel, active floodplain and morphological floodplain as well as the longitudinal section were used to explain the differences between upper, middle, and lower Biya. The results confirm differences in the geological origins between the upper Biya, which has previously been described as the least developed and narrowest, and the other two stretches based on the analyses of morphological parameters. Morphological floodplain width could best explain the differences between upper (0-86 km), middle (86-196 km), and lower Biya (196-301 km). The study further showed a clear relationship between the variations in river patterns and adjacent topographic structures (valley confinements, tributary interactions), highlighting that any assessment of river morphology must consider the wider surroundings of a river stretch. The presented morphological observations and analyses of the Biya show that easily obtainable parameters can detect differences in the morphological history of river stretches within the same catchment, supporting process understanding.
高山河流景观阅读——以比亚河为例
人为压力改变了世界各地河流的水文形态特征。环境指导原则对于规划可持续的河流恢复措施至关重要。位于俄罗斯阿尔泰山脉的阿尔卑斯河比亚发源于特列茨科耶湖,在比斯克附近与卡顿河汇合,形成鄂毕邦。比亚代表了一个处于人类成因“最少干扰”条件下的水文形态参考系统。本研究旨在利用遥感信息(ASTER GDEM v3),基于一种适用的景观读取方法,评估河流的原状形态与三个不同河段的地质历史的关系。利用活动河道、活动洪泛区和形态洪泛区的既定宽度以及纵剖面来解释比亚上、中、下三者之间的差异。根据形态参数的分析,结果证实了比亚上游与其他两个伸展段之间地质起源的差异,前者此前被描述为最不发达和最窄的伸展段。形态漫滩宽度可以最好地解释比亚上游(0-86公里)、中部(86-196公里)和下游(196-301公里)之间的差异。该研究进一步表明,河流形态的变化与相邻地形结构(山谷限制、支流相互作用)之间存在明显的关系,强调任何对河流形态的评估都必须考虑河流河段的更广阔环境。对比亚河的形态观测和分析表明,易于获得的参数可以检测同一流域内河段形态历史的差异,支持对过程的理解。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
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来源期刊
Geography, Environment, Sustainability
Geography, Environment, Sustainability Social Sciences-Geography, Planning and Development
CiteScore
2.50
自引率
0.00%
发文量
37
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.
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