نتایج جستجو برای: river valleys
تعداد نتایج: 87038 فیلتر نتایج به سال:
Purpose. To improve the existing classification of residential landscapes and its basis for analyzing structure modern urban landscape technical systems in river valleys Right Bank Ukraine. Methods. This study is based on anthropogenic landscapes, concepts geotechnical systems, as well materials their own field observations, which were carried out during 2008-2021 The main research methods used...
The aim of the study was to evaluate impact European beaver (Castor fiber L.) on vegetation diversity and expansion non-native plant species in areas surrounding watercourses Polesie National Park, Poland. investigation carried out within six inhabited by beavers four comparison where were absent. living park had a small excursion range, reaching maximum distance 25 m from watercourse so that e...
Potentially gold-bearing sediments in buried valleys in the Beauceville area have been sampled and studied using stratigraphic drilling techniques. These investigations show that river orientation transverse to dominant ice $ow directions, the relationships of preglacial and glacial sediments, oxidation at depth, brown colour in till, and distinctive geochemical data for Ni all provide importan...
This work presents a region descriptor based on the integration of the information that the depth of valleys image provides. The depth of valleys image is based on the presence of intensity valleys around polyps due to the image acquisition. Our proposed description method consists of defining, for each point, a series of radial sectors around it and then accumulate the maxima of the depth of v...
The aim of this article is to analyze the tourism potential in riverside areas selected cities LubuskieVoivodeship located Oder River valleys. research issue was defined as a way measure tourist development areas. In phase, based on comparative multi-criteria method, special attention paid accessibility river for inhabitants, their usefulness recreation, well location recreational infrastructur...
The 2012 Ahar-Varzegan earthquake and its aftershocks have not only caused huge damage with a severe loss of life and property but also induced many geo-hazards with the major type of collapse, creep, slip, debris flow, and fallings that are generally considered as landslide in this study which can cause continuous threats to the affected region. in this study, a semi-automated geo-hazard detec...
Hibiscus aridicola (Malvaceae) is an endangered ornamental shrub endemic to the dry-hot valleys of Jinsha River in southwest China. Only four natural populations of H. aridicola exist in the wild according to our field investigation. It can be inferred that H. aridicola is facing a very high risk of extinction in the wild and an urgent conservation strategy is required. By using a modified biot...
Alpine glaciation and river incision control the topography of mountain ranges, but their relative contributions have been debated for years. Apatite 4He/3He thermochronometry tightly constrains the timing and rate of glacial erosion within one of the largest valleys in the southern Coast Mountains of British Columbia, Canada. Five proximate samples require accelerated denudation of the Klinakl...
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