scholarly journals GEOMORPHIC CONSTRAINS ON THE EVOLUTION OF THE AGGITIS RIVER BASIN NORTHERN GREECE (A PRELIMINARY REPORT)

2017 ◽  
Vol 50 (1) ◽  
pp. 365 ◽  
Author(s):  
Ch. Pennos ◽  
S.E. Lauritzen ◽  
S. Pechlivanidou ◽  
Y. Sotiriadis

In this paper we discuss the landscape evolution of the Aggitis River basin by correlating the morphological characteristics of the Maaras Cave (Aggitis River spring) with the main geomorphological features of the Aggitis fluvial valley. We combine the various morphological features that are hidden inside the Maaras Cave with the surface geomorphology of the river valley in order to trace the imprint of the different evolutionary stages on the landscape. Also, we provide a relative chronological framework for the evolution of the area. The 3D survey of the Maaras Cave shows that the roof of the cave is looping-like shaped in contrast to the floor of the cave that shows low slopes and holds thick clastic sediment deposits. Furthermore, the geomorphological mapping of the Aggitis River valley shows two prominent windgaps at the southern part of the basin that formed as the result of river capture. Our results suggest that the Aggitis River basin suffered four major evolutionary stages from the Neogene until the Quaternary.

Author(s):  
В.А. Кривцов ◽  
А.В. Водорезов ◽  
Е.М. Никифорова

В предлагаемой статье раскрыты некоторые возможности использования геоморфологических объектов в центре Русской равнины в развитии рекреации и познавательного туризма на примере территории долины реки Прони. Сделан краткий обзор научных работ, посвященных вопросам роли рельефа как условия туристско-рекреационной привлекательности территории, рекреационно-геоморфологического потенциала территории, методам рекреационно-геоморфологического картографирования. Показаны возможности развития экологического туризма в пределах действующих и проектируемых особо охраняемых природных территорий, рельеф которых заметно обусловливает геоботаническую и ландшафтную мозаику территории, формирует редкие и уникальные урочища. Выявлена низкая посещаемость рекреантами долины реки Прони при наличии высокого туристско-рекреационного потенциала долины для развития культурно-экологи-ческого и познавательного туризма, который был определен с учетом данных, характеризующих особенности строения и развития долины, проявление современных экзогенных рельефообразующих процессов, в том числе антропогенных, роль морфолитогенной основы в размещении поселений и специфике хозяйственного освоения долины, в дифференциации региональных ландшафтов и сохранении их естественного облика, в привлекательности отдельных форм и комплексов форм рельефа. Выделены отдельные участки, перспективные для развития природно- и культурно-познава-тельного туризма, а также спелеотуризма, показанные на геоморфологической карте. В частности, охарактеризованы природные особенности Проне-Городища, Ижеславльского и Лубянского городищ, городища Пронское II (Гора Гневна), отработанного цементного карьера у поселка Змеинка, штолен на отрезке долины Прони от деревни Курлышево до поселка Октябрьский («Перспективная», «Козлиная»), Пронского водохранилища. Обобщена опубликованная информация об истории подземной добычи известняка в долине реки Прони, технологии его добычи, ценная для информирования рекреантов. Предложены маршруты экологических троп по территории Завидовского долинного комплекса с посещением старых подземных выработок известняка. Материалы настоящего исследования дополнены аэрофотоснимками и наземными фотографиями. The article treats tourist and recreational potential of the East-European Plain at the example of the Pronya River valley. The article provides a concise overview of research devoted to the investigation of the relief as a prerequisite for tourist and recreational attractiveness, recreational and geomorphological potential of the territory and recreational and geomorphological mapping. It investigates the possibilities of ecotourism development in nature reserves whose relief accounts for the geobotanical and landscape peculiarities of the territory, creating rare and unique landmarks. The article underlines that despite a high tourist and recreational potential of the Pronya river valley, tourists seldom visit the place. The article maintains that due to morphological characteristics and anthropogenic factors, the Pronya river valley is ideal for cultural tourism and ecotourism development. The article singles out areas with high ecotourism potential, cultural tourism potential, and cave tourism potential. The article describes natural characteristics of Pronya Hillfort, Izheslavl Hillfort, Lubyanka Hillfort, Pronsky II Hillfort (Gnevna Mountain), Zmeinka cement quarry, Kurlyshevo-Oktyabrsky mines (“Perspektivnaya” and “Kozlinaya”), Pronsk water reservoir. The article summarizes the information related to the history of limestone quarries in the Pronya river valley, which may be interesting for potential tourists. The article presents eco-travel itineraries including such destinations as Zavidovsky valley complex and limestone quarries. The article provides terrestrial photographs and aerial photographs.


Author(s):  
Modest Guţu ◽  
Thomas Iliffe

Leptochelia Vatulelensis(Crustacea: Tanaidacea), A New Species From Anchialine Caves of the South-Western PacificLeptochelia vatulelensisn. sp., discovered on the small islands of Vatulele (Fijian group) and Ouvéa (Loyalty Islands, New Caledonia), is described and illustrated. The new species is distinguished from the others of the"Leptochelia-dubiagroup" (to which it is generally similar) by the following combination of morphological characteristics: (1) the presence of three to four distal setae on the maxilliped basis; (2) merus of pereopods III and IV with only a distosternal seta; (3) endopod of the uropods formed of four (rarely three) articles; (4) males with two (sometimes three) relatively short aesthetascs on the first five articles of the antennular flagellum; (5) male cheliped with a diminished dimorphism; (6) males with a vertical comb-row of setae on the cheliped propodus. Although it inhabits inland, anchialine caves, the new species lacks morphological features that are characteristic of some cave species.


Author(s):  
А. А. Fadeev ◽  
Z. А. Nikonova

The results of study of the 12 year cycle of studies on the only in Russia collection of hops ordinary (Humulus lupulus L.), which contains 250 samples from different regions of Russia and 17 foreign countries. The number of process varieties, composition and origin, it is unique and corresponds to world level. A collection of accessions of hops is a population of female plants with a set of phenological, morphological and economic importance of signs. In the article, the estimation of the collectible varieties of hops at different ripeness groups according to phenological and morphological characteristics according to the method of test for distinctness, uniformity and stability. As the result of the research the Common Hop (Humuluslupulus) sorts were classified in accordance with their maturity time as early maturity (less than 100 days) – 10%, middle-early (101…110 days) – 14, middle duration (111…120 days) – 40, middle-late (121…130 days) – 10% and slow-maturing (more than 130 days) – 26%. Each group has a phenotypic and morphologies features. The early maturity, middle-early and middle duration varieties with vegetative season approximately 120 days are more adaptive to the conditions of the Chuvashia and central part of the Russia and provide obtaining high yield of the hop cones.


2020 ◽  
Vol 9 (4(73)) ◽  
pp. 29-33
Author(s):  
N.S. Bagdaryyn

The article continues the author's research on the toponymy of the North-East of the Sakha Republic, in particular the Kolyma river basin, in the aspect of the interaction of related and unrelated languages. The relevance of this work is defined in the description of local geographical terminology of Yukagir origin, as a valuable and important material in the further study of toponymy of the region. For the first time, the toponymy of the Kolyma river basin becomes the object of sampling and linguistic analysis of toponyms with local geographical terms of Yukagir origin in order to identify and analyze them linguistically. The research was carried out by comparative method, word formation, structural, lexical and semantic analysis. As a result of the research, phonetic and morphological features are revealed, the formation of local geographical terms and geographical names of Yukagir origin is outlined, and previously unrecorded semantic shifts and dialectisms are revealed. The most active in the formation of terms and toponyms is the geographical term iилil / eҕal 'coast‘, which is justified by the representation of the Yukagirs’ coast' home, housing


1995 ◽  
Vol 22 (1) ◽  
pp. 20-30 ◽  
Author(s):  
Nandini Chatterjee

Social Forestry (SF) schemes have been implemented in India since the 1980s to combat deforestation, increase the supply of fuel-wood and fodder, and provide minor forest products for the rural populaton. The relevance of such Schemes in the Mayurakshi River Basin is basically due to its environmentally degraded state. Latterly the Basin has been brought under the Mayurakshi River Valley Project, but unless measures are undertaken to mitigate problems of soil erosion, the efficiency of the Project will be hampered.


2018 ◽  
Vol 46 (1) ◽  
pp. 82-89
Author(s):  
Yanfen LU ◽  
Suxiao HAO ◽  
Hui GENG ◽  
Yuncong YAO

Flavonoids are important secondary metabolites, whose content and composition such as anthocyanin and flavonol have been associated with fruit quality and affect fruit coloration. Crabapple (Malus spp.), with rich color and nutritive value, belongs to the family M. genus of the Rosaceae family, and it is widely used in landscape for its rich flavonoid compositions. Radiation mutagenesis breeding may increase the gene mutation frequency and enhance diversity of species, so it is a predominant approach for plant germplasm innovation. However, the changes of crabapple morphological characteristics and flavonoid compositions by radiation are not clear. In this study, we employed 60Coγ radiation to M.cv. ‘Royalty’ crabapple, and then surveyed the changes of leaves and flowers in the growth and morphology traits, color parameters, flavonoid composition, and the genetic diversity. The result found that 60Coγ radiation decreased plant height, stem diameter and leaf and flower areas. And it promoted the flavonoids accumulation in leaves, but inhibited that in flowers. Additionally, 60Coγ radiation improved DNA diversity. W60-7, W40-2 and W40-5 plants showed clear phenotypic variation by AFLP analysis. These results provide evidence that mutagenesis breeding may change the morphological features and flavonoid compositions, and expand crabapple germplasm resources and improve its application value. 


2022 ◽  
Author(s):  
Stephen P Lound ◽  
Gavin F Birch ◽  
Deirdre Dragovich

Abstract Middle Harbour is a drowned-river valley located adjacent to the larger Sydney estuary, Australia. Extensive, high-resolution seismic data were correlated with borehole, land use, topographical, and geological data to calculate the mass of genetically different sediment deposits in Middle Harbour. The Harbour follows a well-defined drowned river-valley structure featuring small fluvial bedload delta deposits in the upper reaches of the embayments, a deep, central extensive mud basin overlying transgressive basal accumulations and a large flood-tide delta at the entrance. Deposits of an estimated 5,094 t of bedload, 21,143 t of suspended sediment and 5,947 t of transgressive basal material located in the estuary provided sedimentation rates of 0.68 t y-1, 1.29 t y-1, and 2.86 t y -1 respectively. These rates, determined from measured accumulations, were surprisingly low and substantially smaller than modelled rates. However, low sedimentation rates for suspended material may be due to fine sediment escaping over the top of the marine tidal delta, which effectively traps all bedload material from exiting the Harbour. Results of this study indicate that Holocene bedload sedimentation in Middle Harbour was slow and regular until a rapid increase after urbanisation commenced in the catchment. Most pre-Holocene material was eroded from Middle Harbour during the Last Glacial period with sediment currently present in the estuary having been deposited since sea-level recovery.


Author(s):  
N.P. Turova

Researchers associate the medieval archeological artifacts of the Middle Trans-Urals, whose pottery bears cord impressions, with the Chiyalik, Molchanvo and Yudina Cultures. Despite the large number of artifacts that have been studied, many questions remain open. These include the status, chronology, and interaction of the Molchanovo and Yudina antiquities, as well as the evolution and specifics of their pottery complexes. Publication and analysis of the ceramic collections from Vak-Kur, the largest burial ground of the Yudina Culture, contribute to addressing some problems related to «the Corded Ware cultures». The Vak-Kur burial ground is dated to the 10th–11th centuries based on the assemblage of the associated goods. It is located in the south-eastern part of the Yudina Culture areal, on the right shore of the Tobol River. For all the time of excavations in the area of the ne-cropolis, 220 burials have been studied. The dead were buried in shallow pits according to the ritual of inhuma-tion, on their backs. A specific feature of the funeral ritual is breaking of a part of the accompanying equipment and use of funerary masks. Decorative and morphological features of 143 Yudina vessels have been examined. The tableware has been categorized according to four topographic groups after excavations 3 to 6. It has been noted that, despite the similar shapes of pots, and ornamental proportions and patterns, the pottery from excava-tions 3 to 6 demonstrates a different frequency in use of such elements in the décor as the cord and figured stamps. The biggest differences were detected between the ceramic artifacts found in excavations 4 and 6. It was suggested that the differences in décor between pottery from different excavations are determined not by their asynchronous nature, but by the existence of several tribal sites in the area of the Yudina necropolis. The com-parison of ceramic collections from the Vak-Kur burial ground with those from the medieval burial and settlement sites of the Yudina Culture showed that the pottery from the necropolis is most closely related to collections from the Plamya Sibiri 6 and 7, and Antonovo 1 settlements located in the Tura River basin. These sites were dated by their investigator to the earlier period (6th to 9th centuries) and attributed to the Molchanovo Culture. Based on the significant similarity between the pottery of the named sites and the dishware of the 10th to 11th centuries from excavation 4 of the Vak-Kur burial ground, a revision of the chronology and cultural attribution of these sites has been proposed.


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