scholarly journals HISTORY OF VEGETATION AND CLIMATE OF THE OKINSKY PLATEAU (EASTERN SAYAN) IN THE HOLOCENE

2021 ◽  
pp. 17-19
Author(s):  
E. V. Volchatova ◽  
E. V. Bezrukova ◽  
A. A. Amosova ◽  
Maarten van Hardenbroek ◽  
N. V. Kulagina
Keyword(s):  
The Holocene ◽  
History Of Vegetation ◽  
History Of ◽  
Eastern Sayan ◽  
Vegetation And Climate

Vegetation and Climate History of the Harenna Forest (Bale Mountains, Ethiopia) in the Holocene

2018 ◽  
Vol 45 (6) ◽  
pp. 537-548
Author(s):  
E. A. Kuzmicheva ◽  
B. F. Khasanov ◽  
O. A. Krylovich ◽  
H. Jebessa Debella ◽  
W. Girmay Worku ◽  
...  
Keyword(s):  
Climate History ◽  
The Holocene ◽  
History Of ◽  
Vegetation And Climate

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

2021 ◽  
Author(s):  
П.С. Белянин ◽  
Н.И. Белянина
Keyword(s):  
Plant Communities ◽  
Late Holocene ◽  
Final Phase ◽  
Natural Conditions ◽  
Climatic Fluctuations ◽  
The Holocene ◽  
History Of Vegetation ◽  
Broad Leaf ◽  
History Of

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.

Evidence of a late glacial warming event and early Holocene cooling in the southern Brazilian coastal highlands

2017 ◽  
Vol 89 (1) ◽  
pp. 90-102 ◽  
Author(s):  
Hermann Behling ◽  
Marcelo Accioly Teixeira de Oliveira
Keyword(s):  
Late Glacial ◽  
Dry Season ◽  
Atlantic Rain Forest ◽  
Pollen Record ◽  
Grassland Vegetation ◽  
History Of Vegetation ◽  
Tree Ferns ◽  
Dry Conditions ◽  
History Of ◽  
Vegetation And Climate

AbstractA high-resolution pollen record of the Atlantic rain forest (ARF) biome from the coastal Serra do Tabuleiro mountains of southern Brazil documents an 11,960 yr history of vegetation and climate change. A marked expansion of Weinmannia into the grassland vegetation marks the latter part of the Younger Dryas, reflecting warm and relatively wet conditions. Between 11,490 and 9110 cal yr BP, grasslands became dominant again, indicating a long cold and dry phase, probably in response to the stronger influence of cold South Atlantic seawater and to Antarctic cold fronts. Between 9110 and 2640 cal yr BP, four distinct phases with strong or moderate expansions of different ARF biome taxa were recorded, reflecting warmer and relatively dry conditions with changes in rainfall and length of the annual dry season. After 2640 cal yr BP, the modern ARF biome became established with high amounts of ferns, reflecting somewhat cooler and wetter conditions with a reduced annual dry season. In particular, after 1000 cal yr BP tree ferns increased, reflecting wetter conditions with no dry season.

Late Holocene Climatic Changes in Western Equatorial Africa Inferred from Pollen from Lake Sinnda, Southern Congo

1998 ◽  
Vol 50 (1) ◽  
pp. 34-45 ◽  
Author(s):  
Annie Vincens ◽  
Dominique Schwartz ◽  
Jacques Bertaux ◽  
Hilaire Elenga ◽  
Christian de Namur
Keyword(s):  
Late Holocene ◽  
Major Change ◽  
Abrupt Decrease ◽  
Paleoclimatic Reconstruction ◽  
The Past ◽  
Equatorial Africa ◽  
History Of Vegetation ◽  
Drying Up ◽  
History Of ◽  
Vegetation And Climate

Pollen analysis of two cores from the Lake Sinnda, located in one of the driest areas of the southern Congo, reveals a history of vegetation and climate in this region during the past 5000 yr. A major change centered around 3000–2500 yr B.P. is indicated by an abrupt decrease in forest pollen and by a corresponding increase in grassland pollen. Concurrent drying up of the lake shows that climate, in particular aridity, was the major cause of this change. This paleoclimatic reconstruction conforms with evidence for drier conditions in other parts of western equatorial Africa, such as the development of isolated enclosed savannas and of heliophilous forested formations. The aridity is recorded more fully at Lake Sinnda than at the previous studied ones. It probably lasted longer, from 4200 to 1300 yr B.P., and was more progressive than previously inferred. The aridity predates agriculture marked by pollen of the oil palm at Lake Sinnda.

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