Dynamics of mountain glaciation in the South-Eastern Siberia over the past 160 years

Abstract. The fire history of the Tibetan Plateau over centennial to millennial timescales is still unknown. Recent ice core studies reconstruct fire history over the past few decades but do not extend through the Holocene. Lacustrine sedimentary cores, however, provide continuous records of large-scale and local environmental modifications due to their accumulation of specific organic molecular markers throughout the past millennia. In order to reconstruct Holocene fire events and vegetation changes occurring on the south-eastern Tibetan Plateau and the surrounding areas, we improved and integrated previous analytical methods. The multi-proxy procedure was applied to samples retrieved from Paru Co, a small lake located in the Nyainqentanglha Mountains (29°47'45.6" N; 92°21'07.2" E; 4845 m a.s.l.). The investigated biomarkers include n-alkanes as indicators of vegetation, polycyclic aromatic hydrocarbons (PAHs) as combustion proxies, faecal sterols and stanols (FeSts) as indicators of the presence of humans or grazing animals and finally monosaccharide anhydrides (MAs) as specific markers of vegetation burning processes. Relatively high concentrations of both MAs and PAHs demonstrate intense local biomass burning activity during the early Holocene (10.9–10.7 cal ky BP), which correspond to a drier climate following deglaciation. High concentrations of MAs but not PAHs between 10.7–9 cal ky BP suggest a period of regional biomass burning followed by a decreasing fire trend through the mid-late Holocene. This fire history is consistent with local vegetation changes reconstructed from both n-alkanes and regional pollen records, where vegetation types depend on the centennial-scale intensity of monsoon precipitation. FeSts were below detection limits for most of the samples, suggesting limited direct human influences on fire regime and vegetation changes in the lake's catchment. Climate is the main influence on fire activity recorded in Paru Co over millennial timescales, where biomass burning fluctuates in response to alternating warm/humid and cool/dry periods.

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An alternative solution of a technological problem: “Opening of weakly permeable terrigenous deposits in oil and gas-condensate fields in the South-Eastern Siberia”

Construction of Oil and Gas Wells on Land and Sea ◽

10.33285/0130-3872-2020-5(329)-57-61 ◽

2020 ◽

pp. 57-61

Author(s):

O.A. Bragina ◽

◽

A.G. Vakhromeev ◽

I.D. Tashkevich ◽

S.A. Sverkunov ◽

...

Keyword(s):

Oil And Gas ◽

Gas Condensate ◽

Alternative Solution ◽

Technological Problem ◽

Eastern Siberia ◽

The South ◽

South Eastern

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Present or Absent? About a Threatened Fern, Asplenium adulterinum Milde, in South-Eastern Carpathians (Romania)

Notulae Scientia Biologicae ◽

10.15835/nsb739566 ◽

2015 ◽

Vol 7 (3) ◽

pp. 299-307

Author(s):

Attila BARTÓK ◽

Irina IRIMIA

Keyword(s):

The South ◽

Herbarium Material ◽

South Eastern ◽

The Past ◽

The Carpathians ◽

Eastern Carpathians ◽

New Locations ◽

Available Information

Asplenium adulterinum Milde is one of the rarest and most threatened representatives of the Aspleniaceae family in the Carpathians. Botanical literature mentioned the ladder spleenwort in many localities in South-Eastern Carpathians in the past, but during the last decades the species has not been collected and deposited in public herbaria by any botanist. All existing herbarium material in Romanian herbaria (including Asplenium trichomanes and A. trichomanes-ramosum) was revised and all available information from botanical literature was critically compiled in order to clarify the distribution of Asplenium adulterinum in the South-Eastern Carpathians. After almost 80 years since the first mention of the species in the Carpathians, this paper reports the recent identification of Asplenium adulterinum in three new locations in South-Eastern Carpathians (Ţesna Valley, Vânturătoarea Waterfall and Şugăului Gorges).

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Observations of warming on the Western Australian continental shelf

Marine and Freshwater Research ◽

10.1071/mf07082 ◽

2007 ◽

Vol 58 (10) ◽

pp. 914 ◽

Cited By ~ 84

Author(s):

Alan Pearce ◽

Ming Feng

Keyword(s):

Indian Ocean ◽

Continental Shelf ◽

Southern Oscillation ◽

Warming Trend ◽

Eastern Indian Ocean ◽

The South ◽

Leeuwin Current ◽

South Eastern ◽

The Past ◽

Western Australian

Global temperature datasets indicate a warming trend in the south-eastern Indian Ocean of ~0.02°C year–1. This is supported by in situ temperature measurements at a coastal monitoring station on the Western Australian continental shelf that have shown a mean temperature rise of 0.013°C year–1 since 1951, corresponding to ~0.6°C over the past 5 decades. Measurements from three other shallow stations between 1985 and 2004 indicated warming trends of 0.026–0.034°C year–1. It is suggested that enhanced air–sea heat flux into the south-eastern Indian Ocean may be a key factor in the rising temperature trend. There has also been a steady rise in salinity over the past half-century. At interannual scales, coherent temperature variability at the various stations indicates that larger-scale processes are influencing the shelf waters and are linked with El Niño/Southern Oscillation (ENSO)-related events in coastal sea level and hence the Leeuwin Current.

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Tebat Rasau Geopark: Ethnobiology and Ethnogeology of a Pleistocene River in Belitung, Indonesia

Journal of Tropical Ethnobiology ◽

10.46359/jte.v4i2.101 ◽

2021 ◽

Vol 4 (2) ◽

pp. 130-149

Author(s):

Ary Prihardhyanto Keim ◽

Fithrorozi Fithrorozi ◽

Tukul Rameyo Adi ◽

R. Indarjani ◽

Fauzi Akbar ◽

...

Keyword(s):

River System ◽

Eastern Coast ◽

The South ◽

Herbal Tea ◽

South Eastern ◽

The Past ◽

The People

Belitung is an island on the south eastern coast of Sumatra, Indonesia. Geologically, Belitung is an continental island and during Pleistocene was united with Sumatra and Borneo to form a subcontinent named Sundaland indicated by the existence of an archaic Pleistocene river located in Tebat Rasau in the East Belitung Regency with the presence of Asiatic arowana (Scleropages formosus) and non-poisonous freshwater pufferfish from the genus Pao, which is identified here as resembling Pao hilgendorfii. The existence of these biota strengthening the concept of Sundaland and has put Belitung tributaries closer to mainland Borneo’s river system rather than that of Sumatra’s. Fascinating discoveries found in this current study are the fact that the people of Tebat Rasau acknowledge based on the presence of the Asiatic arowana and non-poisonous pufferfish about the union of Belitung with the mainland Borneo and Sumatra in the past long before the concept of Sundaland itself was formulated and published. This knowledge has put the people of Tebat Rasau more aware on the conservation of the area and fully supports the appointment of the Tebat Rasau vicinity as a National Geopark. The local products have also produced from the vicinity including the well-known herbal tea from the leaves of Pelawan tree (Tristaniopsis merguensis; Myrtaceae) known as “Pelawan Tea”.

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The influence of the Tajik language on the vocalism of Central Asian Arabic dialects

Bulletin of the School of Oriental and African Studies ◽

10.1017/s0041977x00145240 ◽

1970 ◽

Vol 33 (1) ◽

pp. 167-170 ◽

Cited By ~ 1

Author(s):

George V. Tsereteli

Keyword(s):

Central Asia ◽

Small Groups ◽

The South ◽

South Eastern ◽

The Past ◽

Central Asian ◽

Arabic Dialects ◽

The Village

The Arabs in Central Asia occupied in the past, as is well known, considerable territory, especially in the lower parts of the basins of the Zarafshān and Qashqa-daryā rivers, and also in Khojend and the south-eastern regions of Tajikistan.In the course of centuries the majority of the Central Asian Arabs have lost their language and only small groups of them continue to speak Arabic up to the present time in the villages of Jōgarḹ, Čardaḹ (Ġijduwān district) and ‘Arab-Xōna (Wobkend district) of the Bukhārā region and in the village of Jeinau in the Qashqa-daryā region.

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