Holocene environmental changes in northeast Thailand as reconstructed from a tropical wetland

Wohlfarth, Barbara; Klubseang, Wichuratree; Inthongkaew, Suda; Fritz, Sherilyn C.; Blaauw, Maarten; Reimer, Paula J.; Chabangborn, Akkaneewut; Löwemark, Ludvig; Chawchai, Sakonvan

doi:10.1016/j.gloplacha.2012.05.008

Cited by 30 publications

(44 citation statements)

References 54 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The geochemical proxies established for CP3 can be compared with the multi-sediment and multi-proxy records of Lake Kumphawapi, which is located 15 km to the northeast. These showed the re-establishment of a shallow lake around AD 150-350 and suggested higher effective moisture and a strengthened summer monsoon (Chawchai et al, 2013;Wohlfarth et al, 2012), similar to our interpretation of the Pa Kho record. However, a detailed interpretation of the paleoenvironment in Kumphawapi after AD 350 is limited due to chronological uncertainties.…”

Section: Discussionsupporting

confidence: 86%

Hydroclimatic shifts in northeast Thailand during the last two millennia – the record of Lake Pa Kho

Chawchai

Chabangborn

Fritz

et al. 2015

Quaternary Science Reviews

Self Cite

View full text Add to dashboard Cite

show abstract

Section: Discussionsupporting

confidence: 86%

Hydroclimatic shifts in northeast Thailand during the last two millennia – the record of Lake Pa Kho

Chawchai

Chabangborn

Fritz

et al. 2015

Quaternary Science Reviews

Self Cite

View full text Add to dashboard Cite

show abstract

“…The formation of the Kumphawapi basin probably occurred as a result of a combination of rock salt cavity collapse and gradual land subsidence (Wohlfarth et al . ; Chawchai et al . ).…”

Section: Methodsmentioning

confidence: 99%

“…We used records from Lakes Kumphawapi (KMP) (Wohlfarth et al . ; Chawchai et al . ) and Nong Leng Sai (NSL) in northern Thailand, which display marked changes in total organic carbon (TOC) ranging from 5 to 40%.…”

mentioning

confidence: 99%

Testing commonly used X‐ray fluorescence core scanning‐based proxies for organic‐rich lake sediments and peat

Chawchai

Kylander

Chabangborn

et al. 2015

Boreas

Self Cite

View full text Add to dashboard Cite

L€ owemark, L. & Wohlfarth, B. 2016 (January): Testing commonly used X-ray fluorescence core scanning-based proxies for organic-rich lake sediments and peat. Boreas, Vol. 45, pp. 180-189. 10.1111/bor.12145. ISSN 0300-9483. X-ray fluorescence (XRF) core scanning has become widely available for geological studies during the last decade. The data obtained from XRF core scanning, however, may be strongly influenced by the amount of organic matter, water content, density and porosity of the sediment matrix. In this study we discuss the usefulness of XRF core scanning to distinguish different kinds of organic-rich sediments and peat based on examples from tropical Lakes Kumphawapi and Nong Leng Sai in Thailand. We examined how sedimentary factors influence XRF core scanning analyses by comparing elemental and scattering ratios to lithological changes and quantitative LOI, TOC, biogenic silica (BSi) and grain-size values. Our comparison suggests that the (inc/coh) scattering ratio is of limited use as an indicator for variations in LOI and TOC in peaty gyttja or peat. In Lake Kumphawapi's sediments, Si/Ti ratios reflect clastic input associated with grain-size variations rather than BSi contents. The Ti-normalized ratios of Si, Zr, Sr, K and Rb are linked to mineral input and associated grain-size variations. We conclude that XRF core scanning of organic-rich tropical lake sediments and peat is useful to infer palaeoenvironmental conditions. However, XRF core scanning data does not stand-alone and needs to be underpinned by additional proxies.

show abstract

“…While considerable data is available on Holocene East Asian monsoon variability (e.g., Yancheva et al, 2007;Dong et al, 2010;Wohlfarth et al, 2012;Chawchai et al, 2013), not much is known about the ISM that affects climate throughout south Asia, and as such the livelihood of more than a billion people in largely agriculture dependent societies (Krishna Kumar et al, 2011) over a variety of timescales. The devastating socio-economic impacts of droughts (a deficit of 10% below the long term mean rainfall) in the ISM realm are well documented (Mooley and Parthasarathy, 1982;Sinha et al, 2011), yet little is known about the dynamical processes underlying these natural catastrophes.…”

Section: Introductionmentioning

confidence: 99%

Prolonged monsoon droughts and links to Indo-Pacific warm pool: A Holocene record from Lonar Lake, central India

Prasad

Anoop

Riedel

et al. 2014

Earth and Planetary Science Letters

238

191

View full text Add to dashboard Cite

Holocene environmental changes in northeast Thailand as reconstructed from a tropical wetland

Cited by 30 publications

References 54 publications

Hydroclimatic shifts in northeast Thailand during the last two millennia – the record of Lake Pa Kho

Hydroclimatic shifts in northeast Thailand during the last two millennia – the record of Lake Pa Kho

Testing commonly used X‐ray fluorescence core scanning‐based proxies for organic‐rich lake sediments and peat

Prolonged monsoon droughts and links to Indo-Pacific warm pool: A Holocene record from Lonar Lake, central India

Contact Info

Product

Resources

About