The large-scale vegetation maps of the western coast of Peter the Great Bay (Far East, the Sea of Japan)

2000 ◽  
pp. 50-61 ◽  
Author(s):  
S. V. Osipov ◽  
V. P. Verkholat
Keyword(s):  
Vegetation Cover ◽  
Large Scale ◽  
Far East ◽  
Peter The Great Bay ◽  
The Sea Of Japan ◽  
Western Coast ◽  
Spatial Unit ◽  
Peter The Great ◽  
Great Bay ◽  
River Valleys

Two territories on the western coast of Peter the Great Bay were mapped in the large scale. The geobotanical mapping means revealing and displaying the essential regularities of vegetation cover. Both the spatial and temporal regularities of vegetation under natural and anthropogenic influences are well pronounced in the territory under consideration. The concept of the vegetation spatial unit (vegetation complexes) was applied as a basis for mapping. The maps and their legend were worked out as a system of vegetation combination types (vegetation combination is a spatial unit of the supracoenotic level). Such categories, as vegetation of tops and slopes, lowlands and river valleys, sea coasts reflect maximal contrasts in vegetation cover, so they are the highest level divisions of the map legend. Types of succession series and stages of series are developed for construction of the second and third levels of the legend. Communities, similar in ecotope, total species composition, saplings and some other characteristics, are referred to one type of series. 5 types of series have been distinguished: dry, fresh, moist, very moist, wet. The main factor of dynamics in considered territory is fire and the series are mainly pyrogeneous. Series are presented as sequences of vegetation stages. The vegetation stages for tops and slopes are: closed low forest — open low woodland — shrub thicket with saplings — meadow with saplings, for lowlands and river valleys they are: open low woodland — thicket of saplings — meadow or mire with saplings.

scholarly journals Types of coasts and hazard geomorphic processes on the Russkii and Shkota islands coasts (Peter the Great Bay, the Sea of Japan)

2020 ◽  
pp. 47-53
Author(s):  
И.И. Лебедев ◽  
В.Н. Невский
Keyword(s):  
Sea Of Japan ◽  
Large Scale ◽  
Peter The Great Bay ◽  
The Sea Of Japan ◽  
Potential Hazard ◽  
Peter The Great ◽  
Great Bay ◽  
Qualitative Estimate ◽  
Functional Zoning ◽  
Geomorphic Processes

Предметом исследования являются опасные геоморфологические процессы на берегах островов Русский и Шкота (залив Петра Великого, Японское море). Цель работы – крупномасштабное картографирование морфогенетических типов берегов и качественная оценка потенциальной опасности проявления этих процессов. В результате крупномасштабного картографирования на острове Русский выделено 4 морфогенетических типа и 9 подтипов берегов, на острове Шкота – 4 типа и 8 подтипов. Картографическая легенда отражает степень переработки берегов волноприбойными процессами. Основными руководящими признаками выделения категорий являются морфология берегового уступа, а также морфология пляжа и размерность слагающего его материала. Наиболее опасными для населения и инженерных сооружений являются абразионные берега с обрывистым береговым уступом и узким, преимущественно валунным пляжем (например, восточные побережья обоих островов). Опасность в данном случае понимается как высокая вероятность трех геоморфологических событий – обвалов, оползней и быстрого подтопления пляжей и прилегающих территорий в результате штормового нагона и цунами. Степень опасности геоморфологических процессов в береговой зоне следует учитывать при проведении функционального зонирования территории этих островов в целях градостроительного проектирования. The subject of the research is dangerous geomorphic processes on the shores of the Russkii and Shkota islands (Peter the Great Bay, the Sea of Japan). The purpose of this work is large-scale mapping of morphogenetic types of coasts and the qualitative estimate of the potential hazard of these processes. As a result of large-scale mapping, four morphogenetic types and 12 subtypes of coasts were identified on Russkii Island, and four types and eight subtypes on Shkota Island. The cartographic legend reflects the degree of coast transformation by marine processes. The main guiding signs for identifying categories are the morphology of the cliff (coast scarp), the morphology of the beach, and the dimension of its material. It was concluded that the abrasion shores with a steep (precipitous) coastal cliff and a narrow, mainly boulder beach (for example, the eastern coasts of the both islands) were most dangerous for the population and engineering buildings. The danger in this case is understood as the high probability of three geomorphic events – rockfalls, landslides, and rapid flooding of beaches and adjacent territories as a result of a storm surge and tsunami. For functional zoning of these islands we must take into account the degree of danger of geomorphic processes in the coastal zone.

scholarly journals Use of singular spectral analysis in geomorphological studies in the Southern Primorye and the Peter the Great Bay of the Sea of Japan

2019 ◽  
pp. 36-45
Author(s):  
A. N. Samchenko
Keyword(s):  
Spectral Analysis ◽  
Major Part ◽  
Large Scale ◽  
Peter The Great Bay ◽  
Small Scale ◽  
The Sea Of Japan ◽  
Southern Primorye ◽  
Singular Spectral Analysis ◽  
Peter The Great ◽  
Great Bay

This paper presents the results of geomorphological studies carried out using the singular spectral analysis (SSA) complemented with geological and geophysical data. The SSA method was used to study the topography of the shelf and adjacent land areas in two scales. The large scale study covered the whole territory of the Southern Primorye and the Peter the Great Bay, the small scale — a major part of the Peter the Great Bay and the adjacent land in the northwest-ern direction. This technique of the relief analysis gives an opportunity to select different groups of elevations (modes in the relief), isolating them among the others, and to carry out geomorpho-logical studies based on discrete changes in the relief levels. Based on the geological and geo-physical data, it was determined that the area is located on a massive granite block. By analyzing the first (“older”) modes of the decomposition of the relief of the studied area, contouring of the massive block was carried out, and the choice of the location of the experimental hydrophysical ground was explained.

scholarly journals Vegetation changes in the south of the Russian Far East in the middle and late Holocene

2019 ◽  
pp. 69-84
Author(s):  
P. S. Belyanin ◽  
P. M. Anderson ◽  
N. I. Belyanina ◽  
A. V. Lozhkin ◽  
Kh. A. Arslanov ◽  
...  
Keyword(s):  
Late Holocene ◽  
Far East ◽  
Peter The Great Bay ◽  
Pinus Koraiensis ◽  
The Sea Of Japan ◽  
Vegetation Changes ◽  
The South ◽  
Peter The Great ◽  
Great Bay ◽  
Middle And Late Holocene

The results of biostratigraphic analysis of bottom sediments of the Karas’e, Utinoe, Krugloe lakes as well as loose sediments of accumulative plains at the mouths of the Tumannaya and Poima rivers in the south of the Far East are presented. Natural conditions were recovered and periodicity of vegetation changes in the foothills of the East Manchurian Mountains and in the coastal plains of the Peter the Great Bay in the Middle and Late Holocene were reconstructed by the complex of data. The synchronicity of both the development of vegetation formations and changes of sedimentation conditions with global climatic variations were revealed. The first, Middle Holocene stage proceeded in the conditions of general planetary increase of average annual temperatures, accompanied by flooding of lowland plains of the coast of the Sea of Japan by sea waters. The distribution and species diversity of broad-leaved plants in spurs of the East Manchurian Mountains increased. In the Holocene Optimum, the polydominant forests with richer composition of species than that of the present time were formed and vegetation on the foothill accumulative plains was represented with sedge and mixed meadows. The second, Late Holocene stage was characterized by a decrease in average annual temperatures and series of climatic changes. Its beginning was marked by the cooling, during which the coastal lowlands were freed from sea waters. Climate deterioration caused expansion of dark coniferous and small-leaved plants in the East Manchurian Mountains, as well as reduction of polydominant forests. On the foothills near the coast of the Peter the Great Bay sedge meadows were developed, sometimes there were thickets of shrubby birch (Betula sect. Nanae) and sphagnum swamps. At the end of the Late Holocene the warming occurred again. On the slopes of the East Manchurian Mountains, the vegetation formations with the dominance of Mongolian oak (Quercus mongolica Fisch. ex Ledeb.) and dentate oak (Quercus dentataThunb.), needle fir (Abies holophylla Maxim.), Korean pine (Pinus koraiensis Siеbold et Zucc.) and with the presence of birches began to dominate. The dissemination of pine (Pinus densiflora Siebold et Zucc.), elm (Ulmus sp.), hornbeam (Carpinus cordata Blume) and maple (Acer sp.) has increased. On the foothill lowlands the sedge-reed meadows with different grass dominated.

Ice drift in Peter the Great Bay

2014 ◽  
Vol 178 (3) ◽  
pp. 148-156
Author(s):  
Vyacheslav A. Dubina ◽  
Vladimir V. Plotnikov ◽  
Nina S. Kot
Keyword(s):  
Satellite Images ◽  
High Spatial Resolution ◽  
Peter The Great Bay ◽  
Western Coast ◽  
Mean Values ◽  
Peter The Great ◽  
Great Bay ◽  
Ice Drift ◽  
The Right ◽  
First Time

Dynamics of the sea ice cover in Peter the Great Bay is considered, for the first time for its whole area, on the base of satellite images received in 2004-2011 from the spectroradiometers MODIS mounted on the satellites Terra and Aqua. High spatial resolution maps of the ice drift are constructed for various wind conditions. Mean values of the drift velocity and wind coefficient are calculated for four parts of the Bay. In usual conditions of winter monsoon, the ice in the central part of Peter the Great Bay drifts southward with the velocity 0.5-0.6 m/s with deviation from the wind direction about 40° to the right; the ice at the western coast drifts along the island chain with the velocity 0.1-0.4 m/s under wind of any direction in the quadrant from northwest to northeast.

scholarly journals НИЗКОЧАСТОТНЫЕ ЭКСПЕРИМЕНТАЛЬНЫЕ АКУСТИЧЕСКИЕ ИССЛЕДОВАНИЯ НА ШЕЛЬФЕ  ЯПОНСКОГО МОРЯ (ЗАЛИВ ПЕТРА ВЕЛИКОГО)

2019 ◽  
Author(s):  
A.N. Samchenko ◽  
A.A. Pivovarov ◽  
A.N. Shvyrev ◽  
I.O. Yaroshchuk
Keyword(s):  
Inverse Problems ◽  
Experimental Work ◽  
Carrier Frequency ◽  
Peter The Great Bay ◽  
The Sea Of Japan ◽  
Acoustic Path ◽  
Geoacoustic Inversion ◽  
Peter The Great ◽  
Great Bay ◽  
Group Velocities

В статье обсуждаются результаты экспериментальных работ, проведенных в осенний период 2016 и 2017 гг. в заливе Петра Великого Японского моря. В экспериментах использовались низкочастотные гидроакустические излучатели с центральной несущей частотой 22 и 33 Гц и гидроакустического излучателя с центральной несущей частотой 240 Гц, прием сигналов осуществлялся на автономные гидроакустические станции (АГС), синхронизированные по времени. Акустические исследования проводились совместно с гидрологическими измерениями СТДзондом и заякоренными автономными термогирляндами. На основе результатов гидроакустических экспериментов, где использовались гидроакустические излучатели 22 и 33 Гц, показана возможность решения как обратных задач, так и геоакустической инверсии. Полученные в результате измерений групповые скорости различных мод позволяют провести оценки геоакустических свойств дна. Экспериментально показано, что на распространение сигналов с частотами более 200 Гц вдоль акустической трассы сильное влияние оказывает гидрология. Ключевые слова: Гидроакустика, геоакустическая модель, низкочастотный гидроакустический излучатель, залив Петра Великого.The paper discusses the results of experimental work carried out in the autumn period of 2016 and 2017 in Peter the Great Bay of the Sea of Japan. We used lowfrequency hydroacoustic emitters with a central carrier frequency of 22 and 33 Hz and a hydroacoustic emitter with a central carrier frequency of 240 Hz. The signals were registered at autonomous hydroacoustic stations (AHS) and were synchronized in time. Acoustic studies were supplemented with hydrological measurements obtained from CTD probe and moored autonomous thermostrings. The possibility of solving both inverse problems and geoacoustic inversion problems was shown basing on the results of hydroacoustic experiments by means of the hydroacoustic emitters at 22 and 33 Hz. The group velocities of different modes obtained as a result of measurements allowed us to estimate the geoacoustic properties of the bottom. It was experimentally proved that the propagation of signals with frequencies greater than 200 Hz along the acoustic path is strongly influenced by hydrology. Keywords: Hydroacoustic, geoacoustic model, lowfrequency hydroacoustic radiator, Peter the Great Bay.

Mercury Content in the Soil-Vegetation Cover of Russky and Shkot Islands (Peter the Great Bay, Primorsky Territory)

2021 ◽  
Vol 59 (5) ◽  
pp. 537-544
Author(s):  
K. S. Ganzei ◽  
N. F. Pshenichnikova ◽  
A. G. Kiselyova ◽  
S. G. Yurchenko ◽  
I. M. Rodnikova
Keyword(s):  
Vegetation Cover ◽  
Peter The Great Bay ◽  
Mercury Content ◽  
Peter The Great ◽  
Great Bay

The records of Pagurus trigonocheirus (Stimpson, 1858) (Crustacea: Decapoda: Paguridae) from the continental coasts of the Peter the Great Bay of the Sea of Japan with the list of hermit crab species from the area

Zootaxa ◽  
2020 ◽  
Vol 4869 (2) ◽  
pp. 275-280
Author(s):  
IVAN MARIN
Keyword(s):  
Sea Of Japan ◽  
Hermit Crab ◽  
Peter The Great Bay ◽  
Hermit Crabs ◽  
The Sea Of Japan ◽  
Crab Species ◽  
Exact Sampling ◽  
Peter The Great ◽  
Great Bay

The sublittoral hermit crab Pagurus trigonocheirus (Stimpson, 1858) (Crustacea: Decapoda: Paguridae) is recorded from depths of 80–200 m along the continental coastline of the Peter the Great Bay, Sea of Japan. The exact sampling localities as well as photographs of live specimens are presented in the paper. Doubtful records of hermit crabs from the southern Russian coastline of the Sea of Japan are also discussed. 

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