Results 41 to 50 of about 12,654 (257)

Organic carbon isotope and molecular fossil records of vegetation evolution in central Loess Plateau since 450 kyr

, 2016
Significant uncertainties remain regarding the temporal evolution of natural vegetation during the Quaternary, and drivers of past vegetation change, on the Chinese Loess Plateau (CLP).
Zhou, Bin, Peterse, Francien, Organic geochemistry & molecular biogeology, Zhou , Bin, Wali, Guzalnur, Organic geochemistry, Bird, Michael I.   +6 more
core   +1 more source

Farming in the shadows of Rome: A multi‐proxy palaeoenvironmental record from Loch Clunie—Perthshire

Journal of Quaternary Science, EarlyView.
ABSTRACT Roman impacts on local society is a subject of international significance. Loch Clunie, Perthshire, lies only 5.4 km from Inchtuthil, the only Roman legionary fortress in Scotland, and contains two crannogs and a probable lakeside hillfort. Despite this proximity and the likelihood of local–Roman interaction, these sites remain unexcavated ...
Samantha E. Jones, Maarten Blaauw, Fraser Hunter, Olalla López‐Costas, Antonio Martínez Cortizas, Tim M. Mighall, Gordon Noble   +6 more
wiley   +1 more source

Late Quaternary climate variability at Mfabeni peatland, eastern South Africa

, 2019
The scarcity of continuous, terrestrial, palaeoenvironmental records in eastern South Africa leaves the evolution of late Quaternary climate and its driving mechanisms uncertain.
Hill, Trevor, Peterse, Francien, Organic geochemistry & molecular biogeology, Humphries, Marc, Schefuß, Enno, Miller, Charlotte, Organic geochemistry, Finch, Jemma, Zabel, Matthias   +8 more
core   +1 more source

Biomolecular evidence of early human occupation of a high-altitude site in Western Central Asia during the Holocene

, 2020
Reconstructions of early human occupation of high-altitude sites in Central Asia and possible migration routes during the Holocene are limited due to restricted archeological sample material.
Schroeter, Natalie, Lauterbach, Stefan, Organic geochemistry & molecular biogeology, Kalanke, Julia, Stebich, M., Gleixner, Gerd, Schouten, S., Organic geochemistry, Mingram, J., Stebich, Martina, Schroeter, N., Yildiz, Caglar, Schouten, Stefan, Yildiz, C., Mingram, Jens, Kalanke, J., Lauterbach, S., Gleixner, G.   +17 more
core   +2 more sources

Late Holocene environmental history of Dojran, Macedonia: Investigating the interplay of imperial dynamics and climatic change

Journal of Quaternary Science, EarlyView.
ABSTRACT This study presents a high‐resolution, multi‐proxy reconstruction of environmental and land‐use change from Lake Dojran over historical times (last 2500 years), combining pollen, biomarkers, radiocarbon dating, Ottoman taxation records and other historical data.
Alessia Masi, Lucrezia Masci, Georgios C. Liakopoulos, Monica Bini, Alexander Francke, Ilaria Isola, Carlo Ricotta, Laura Sadori, Alexander Sarantis, Sławomir Sprawski, Jakub Sypiański, Irene Tunno, Cristiano Vignola, Bernd Wagner, Giovanni Zanchetta, Adam Izdebski   +15 more
wiley   +1 more source

Impact of Sugarcane Management Practices and Time Periods on Soil Organic Carbon and δ13C Signature After Paddy Rice Conversion

Land Degradation &Development, EarlyView.
ABSTRACT Land use change (LUC) from paddy rice to sugarcane cultivation strongly influences soil organic carbon (SOC) stocks, with the extent and direction of change depending on residue management and time since conversion. This study aimed to (i) evaluate SOC stock changes under different residue management practices and conversion periods following ...
Nipon Mawan, Nuttapon Khongdee, Chunling Luo, Wanwisa Pansak   +3 more
wiley   +1 more source

The influence of oxygen exposure time on the composition of macromolecular organic matter as revealed by surface sediments on the Murray Ridge (Arabian Sea) [PDF]

, 2017
The Arabian Sea represents a prime example of an open ocean extended oxygen minimum zone (OMZ) with low oxygenconcentrations (down to less than 2 mM) between 200 and 1000 m water depth.
Sinninghe Damsté, Jaap S., Organic geochemistry & molecular biogeology, Organic geochemistry, Jaap S. Sinninghe Damsté, Sinninghe Damsté, J.S., Nierop, K.G.J., Reichart, G.-J., Harry Veld, Klaas G.J. Nierop, Gert-Jan Reichart, Veld, Harry, Nierop, Klaas G.J., Reichart, Gert-Jan, Veld, H.   +13 more
core   +1 more source

Informing the potential of mature temperate forests as natural climate solutions: Changed fine root biomass and morphology under elevated CO2

PLANTS, PEOPLE, PLANET, EarlyView.
The land carbon sink absorbs approximately 25% of anthropogenic CO2 emissions, with forests accounting for most. Managing forests as Natural Climate Solutions is therefore a societal imperative, requiring models of where and how long carbon resides within these ecosystems. We investigated the effects of elevated CO2 on fine roots, the primary source of
Grace Handy, Angeliki Kourmouli, Marie Arnaud, Carolina Mayoral, Richard J. Norby, Michaela K. Reay, Sami Ullah, Iain P. Hartley, R. Liz Hamilton, Robert Grzesik, Andy R. Smith, Elena Vanguelova, A. Rob MacKenzie, Adriane Esquivel‐Muelbert   +13 more
wiley   +1 more source

Corrigendum to “Branched GDGT signals in fluvial sediments of the Danube River basin: Method comparison and longitudinal evolution” [Organic Geochem. 103 (2017) 88–96] (S0146638016303151) (10.1016/j.orggeochem.2016.11.002)

, 2017
In the above article, an incorrect figure (Fig. 3) was published. This issue is rectified here with the correct Fig. 3.
Peterse, Francien, Filip, Florin, Organic geochemistry & molecular biogeology, Giosan, Liviu, Freymond, Chantal V., Organic geochemistry, Fischer, Lorena V., Eglinton, Timothy I.   +7 more
core   +1 more source

The Evolution of Autonomous Systems for Planetary Cave Exploration: A Review

Journal of Field Robotics, EarlyView.
ABSTRACT The exploration of Subsurface Access Points (SAPs), such as lava tubes on the Moon and Mars, has gained significant interest due to their potential as stable environments shielded from surface radiation and temperature extremes. These sites are considered high‐value targets for detecting water and signs of ancient life, and assessing their ...
Sarah Swinton, Daniel Mitchell, Jamie Blanche, Euan McGookin, David Flynn   +4 more
wiley   +1 more source