scholarly journals THE LATE HOLOCENE HISTORY OF VEGETATION OF THE ACCUMULATIVE PLAIN IN THE INNER PART OF THE USSURI BAY

Author(s):  
П.С. Белянин ◽  
Н.И. Белянина

На основе палинологических данных, восстановлена история развития природной среды аккумулятивной равнины в кутовой части Уссурийского залива за последние 5350 кал. л. Определены особенности структуры растительного покрова в завершающую фазу оптимума голоцена, а также при разнонаправленных климатических флуктуациях позднего голоцена. В завершающую фазу оптимума голоцена широколиственные растения в горном обрамлении были распространены более широко, чем в настоящее время. На аккумулятивной равнине преобладали мелколиственные растительные сообщества с доминированием березы обыкновенной, гибридных берез и ольхи. Похолодание, начавшееся в конце среднего и продолжившееся в начале позднего голоцена, привело к сокращению в растительности широколиственных растений и более широкому распространению мелколиственных. В конце позднего голоцена в кутовой части Уссурийского залива сложились природные условия, обусловившие формирование современной структуры растительности. Based on the palynological data, the history of vegetation on the accumulative plain in the inner part of the Ussuri Bay was reconstructed. Features of the structure of the vegetation cover during the final phase of the Holocene optimum and at multidirectional climatic fluctuations in the Late Holocene were identified. Broad-leaf plants in the final phase of the Holocene were more widely-spread on the surrounding mountain than at present. On the accumulative plains grassy meadows with small-leaf plant communities dominated. Deterioration of natural conditions during the transition to the Late Holocene caused a decrease in vegetation of broad- leaved plants and in an increase in the role of small-plants. At the end of the Late Holocene natural conditions developed in the inner part of the Ussuri Bay, that conditioned the formation of the modern structure of vegetation.

Radiocarbon ◽  
2009 ◽  
Vol 51 (2) ◽  
pp. 457-470 ◽  
Author(s):  
Sylvain Ozainne ◽  
Laurent Lespez ◽  
Yann Le Drezen ◽  
Barbara Eichhorn ◽  
Katharina Neumann ◽  
...  

At Ounjougou, a site complex situated in the Yamé River valley on the Bandiagara Plateau (Dogon country, Mali), multidisciplinary research has revealed a rich archaeological and paleoenvironmental sequence used to reconstruct the history of human-environment interactions, especially during the Late Holocene (3500–300 cal BC). Geomorphological, archaeological, and archaeobotanical data coming from different sites and contexts were combined in order to elaborate a chronocultural and environmental model for this period. Bayesian analysis of 54 14C dates included within the general Late Holocene stratigraphy of Ounjougou provides better accuracy for limits of the main chronological units, as well as for some particularly important events, like the onset of agriculture in the region. The scenario that can be proposed in the current state of research shows an increasing role of anthropogenic fires from the 3rd millennium cal BC onwards, and the appearance of food production during the 2nd millennium cal BC, coupled with a distinctive cultural break. The Late Holocene sequence ends around 300 cal BC with an important sedimentary hiatus that lasts until the end of the 4th century cal AD.


2021 ◽  
pp. 17-19
Author(s):  
E. V. Volchatova ◽  
E. V. Bezrukova ◽  
A. A. Amosova ◽  
Maarten van Hardenbroek ◽  
N. V. Kulagina

Baltica ◽  
2015 ◽  
Vol 28 (2) ◽  
pp. 121-134 ◽  
Author(s):  
Olga Druzhinina ◽  
Dmitry Subetto ◽  
Miglė Stančikaitė ◽  
Giedrė Vaikutienė ◽  
Jury Kublitsky ◽  
...  

Newly obtained pollen and diatom data from the Kamyshovoe Lake (germ. Dobauen, Vishtynets Highland, Baltic Uplands) controlled by radiocarbon dating allowed to reconstruct the history of local vegetation during late Pleistocene – early Holocene. Pollen records show the formation of birch-predominating forest at ca. 13.4 ka cal. BP and the flourishing of pine towards the second half of the chronozone since about 13.2 ka cal. BP. The transition to the Younger Dryas around 12.7 ka cal. BP led to the development of sparse shrub tundra with Juniperus and communities of steppe herbs. Amelioration of the environmental regime enabled birch and pine woods to spread during the second part of GS-1 event and the Preboreal. The late Preboreal time is marked by the appearance of Populus and an increase in the role of grasses in the vegetation cover, which can be correlated to similar open vegetation phases deduced from other pollen records in Europe (11.3–11.1 ka cal. BP). During the Boreal (since ca. 10.0 ka cal. BP) Corylus had its maximum value, Alnus, Tilia and Quercus appeared and spread while the birch-pine forests retreated.


Author(s):  
Leszek Starkel

AbstractOn continents, besides lake and bogs, we observe non-continuous sedimentation where particular layers or whole members represent time intervals of various lengths separated by breaks of different origin. Both, fluvial and slope sediments or forms carry climatic signal. By analyzing sources of sediments, factors of transfer, duration of deposition we reconstruct climatic changes (mainly temperature, precipitations and circulation of water). We order the collected records after age and tracing longitudinal profiles of slopes and river valleys. The slopes and valley floors inform us about spatial differentiation of extreme climatic-hydrological events and on their reflection in degradation or aggradation. All this information sums up the records collected in various projects or commissions like IGCP-158 and GLOCOPH (Starkel ed. 1982–1996; Starkel et al. 2007), Climatostratigraphy of the Holocene of Polish territory (Starkel et al. 2013) as well INTIMATE (Starkel et al. 2015; Gębica et al. 2015). It may be concluded that fluctuations in temperature combined with expansion of permafrost were the leading factors in transformation of landscape of analyzed area of Southern Poland during last cold stage, which is in contrary to the Holocene, when variations in humidity especially in frequency of extreme events played a leading role. The continental records very well express the role of transitional phases.


The Holocene ◽  
2001 ◽  
Vol 11 (6) ◽  
pp. 691-697 ◽  
Author(s):  
I. Thomas ◽  
N. J. Enright ◽  
C. E. Kenyon

Author(s):  
S. Mikheli

The results of the most substantive exploration of the history of the landscape doctrine origin of the Russian and Ukrainiangeographers have been investigated. The conclusions of the authors of historical investigations on the chronology and contentof historical events related to the emergence of the term “landscape” in science, the establishment of preconditions and drivingfactors of its origin have been critically analyzed. The fairness or improper conclusions about the role of certain scientists in theorigin of the concept of landscape as the main target of geographical research have been indicated. The evidence to confirm thefairness of critical remarks has been provided. It has been noted that the roots of the Ukrainian landscape science are Germangeography of the nineteenth century, and along with Germany the landscape concept has acquired a powerful development inRussia and Ukraine (as a part of the Russian Empire), where the term “landscape” began to be widely used not only in science,but also in education at the end of the nineteenth - beginning of the twentieth centuries. It has been proved that the starting pointshould be considered 1805, when the German geographer G.Gommeier first used the word “landscape” in the work “Contributionof European Countries to Military Geography” from German spoken language as a scientific term for the designation of one ofthe units of natural land distribution for the needs of military geography. It has been shown that the prerequisites and drivingfactors of introduction of the term “landscape” in science was the “state order” of the European countries to differentiate theterritory of Europe in terms of differences in natural conditions for the organization and conduct of hostilities.


The Holocene ◽  
2006 ◽  
Vol 16 (2) ◽  
pp. 265-276 ◽  
Author(s):  
Ji Shen ◽  
Richard T. Jones ◽  
Xiangdong Yang ◽  
John A. Dearing ◽  
Sumin Wang

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