Results 71 to 80 of about 1,765 (143)

Recent hummock establishment in the margin of a subarctic fen, Finnish Lapland

open access: yesBoreas, Volume 53, Issue 2, Page 282-295, April 2024.
We studied four peat profiles from a subarctic fen and observed a drastic shift from sedge‐dominated vegetation to Sphagnum‐domination accompanied by a turnover in testate amoeba communities during the late 20th and the early 21st centuries. Testate amoeba‐based water table reconstructions indicated recent drying.
Olivia Kuuri‐Riutta   +7 more
wiley   +1 more source

Reconstruction of the palaeoenvironment using biomarkers and clay mineralogy in loess deposits of northern Iran

open access: yesمجله آب و خاک, 2016
Introduction: Knowledge about palaeoenviroment and palaeovegetation provides information about how vegetation reacts on climate fluctuations in the past, what will help understanding current and future developments caused by e.g. climate change. Northern
A. Shahriari   +5 more
doaj   +1 more source

A critical re‐analysis of constraints on the timing and rate of Laurentide Ice Sheet recession in the northeastern United States

open access: yesJournal of Quaternary Science, Volume 39, Issue 1, Page 54-69, January 2024.
Abstract We review geochronological data relating to the timing and rate of Laurentide Ice Sheet recession in the northeastern United States and model ice margin movements in a Bayesian framework using compilations of previously published organic 14C (n = 133) and in situ cosmogenic 10Be (n = 95) ages.
Christopher T. Halsted   +6 more
wiley   +1 more source

The Tasmanian legacy of man and fire [PDF]

open access: yes, 1999
The vegetation of Tasmania is complex and much of it is in a state of disclimax. At the time of European settlement, the proportion of non-forest open vegetation was 370/0, about 5% of this at high altitudes.
Jackson, WD
core   +3 more sources

Modern pollen assemblages from the hinterland of the Tibetan Plateau and their significance for reconstructions of past vegetation

open access: yesBoreas, Volume 53, Issue 1, Page 42-55, January 2024.
Based on a detailed field vegetation survey and obtained the pollen assemblages of surface soil samples. The pollen assemblages of surface soil and their significance for vegetation reconstruction in alpine meadow and alpine steppe on the Tibetan Plateau were determined.
Linyuan Ma   +8 more
wiley   +1 more source

Model of wetland development of the Amapá coast during the late Holocene

open access: yesAnais da Academia Brasileira de Ciências, 2010
The modern vegetation types, sedimentary sequences, pollen records and radiocarbon dating obtained from three sediment cores from Calçoene Coastal Plain were used to provide a palaeoecological history during the late Holocene of Amapá coastal wetland ...
José T.F. Guimarães   +4 more
doaj   +1 more source

Annual proxy data from Lago Grande di Monticchio (southern Italy) between 76 and 112 ka: new chronological constraints and insights on abrupt climatic oscillations [PDF]

open access: yes, 2014
We present new annual sedimentological proxies and sub-annual element scanner data from the Lago Grande di Monticchio (MON) sediment record for the sequence 76–112 thousand years before present (ka).
Brauer, Achim   +5 more
core   +2 more sources

Terrestrial climate variability and seasonality changes in the Mediterranean region between 15 000 and 4000 years BP deduced from marine pollen records [PDF]

open access: yes, 2009
Pollen-based climate reconstructions were performed on two high-resolution pollen marines cores from the Alboran and Aegean Seas in order to unravel the climatic variability in the coastal settings of the Mediterranean region between 15 000 and 4000 ...
Combourieu-Nebout, Nathalie   +6 more
core   +4 more sources

Natural and anthropogenic forest fires recorded in the Holocene pollen record from a Jinchuan peat bog, northeastern China [PDF]

open access: yes, 2008
Pollen and charcoal particles from a Jinchuan peat (northeastern China) were examined to investigate the fire origin and interaction between climate, vegetation, fire and human activity during the Holocene.
Chu, G   +5 more
core   +1 more source

Quantifying the effect of vegetation dynamics on the climate of the Last Glacial Maximum [PDF]

open access: yes, 2005
International audienceThe importance of the biogeophysical atmosphere-vegetation feedback in comparison with the radiative effect of lower atmospheric CO2 concentrations and the presence of ice sheets at the last glacial maximum (LGM) is investigated ...
Brovkin, V.   +3 more
core   +3 more sources

Home - About - Disclaimer - Privacy