A 6000-year record of changes in drought and precipitation in northeastern China based on a δ13C time series from peat cellulose

Hong, Youwei; Wang, Z.G.; Jiang, Hong‐Bo; Lin, Qinhao; Hong, Bin; Zhu, Yuxin; Wang, Y.; Xu, Lurong; Leng, X.T.; Li, H.D.

doi:10.1016/s0012-821x(00)00367-8

Cited by 189 publications

(112 citation statements)

References 36 publications

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“…However, peat-based palaeoclimate research has increased in parts of Asia, notably in China (Hong et al, 2000(Hong et al, , 2001Xu et al, 2006;Seki et al, 2009) and Indonesia , and in North America Hughes et al, 2006;Booth, 2010;Loisel et al, 2010), particularly during the last decade, while research has also been conducted in Australia Muller et al, 2008), New Zealand (Wilmshurst et al, 2002) and South America Mauquoy et al, 2004a;Chambers et al, 2007a). …”

Section: Geographical Scopementioning

confidence: 99%

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Development and refinement of proxy-climate indicators from peats

Chambers

Booth

Vleeschouwer

et al. 2012

Quaternary International

157

104

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OATAO is an open access repository that collects the work of Toulouse researchers and makes it freely available over the web where possible. This is an author-deposited version published in : http://oatao.univ-toulouse.fr/ Eprints ID : 11364 The Netherlands a b s t r a c t Peat, especially from acidic mires (bogs), is a natural archive of past environmental change. Reconstructions of past climate from bogs commenced in the 19th Century through examination of visible peat stratigraphy, and later formed the basis for a postglacial climatic scheme widely used in Northwest Europe. Nevertheless, misconceptions as to how bogs grow led to a 50-year lacuna in peat-climate study, before the concept of 'cyclic regeneration' in bogs was refuted. In recent decades, research using proxyclimate indicators from bogs has burgeoned. A range of proxies for past hydrological change has been developed, as well as use of pollen, bog oaks and pines and other data to reconstruct past temperatures. Most of this proxy-climate research has been carried out in Northern Europe, but peat-based research in parts of Asia and North America has increased, particularly during the last decade, while research has also been conducted in Australia, New Zealand and South America. This paper reviews developments in proxy-climate reconstructions from peatlands; chronicles use of a range of palaeo-proxies such as visible peat stratigraphy, plant macrofossils, peat humification, testate amoebae and non-pollen palynomorphs; and explains the use of wiggle-match radiocarbon dating and relationship to climate shifts. It details other techniques being used increasingly, such as biomarkers, stable-isotopes, inorganic geochemistry and estimation of dust flux; and points to new proxies under development. Although explicit protocols have been developed recently for research on ombrotrophic mires, it must be recognised that not all proxies and techniques have universal applicability, owing to differences in species assemblages, mire formation, topographic controls, and geochemical characteristics.

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Section: Geographical Scopementioning

confidence: 99%

“…Hong et al, 2001) and from leaf-wax compounds. Two opposing factors are thought to influence the carbon isotope ratio of fossil Sphagnum molecules from cellulose, leaf waxes, etc.…”

Section: Carbon Isotopesmentioning

confidence: 99%

Development and refinement of proxy-climate indicators from peats

Chambers

Booth

Vleeschouwer

et al. 2012

Quaternary International

157

104

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“…On the contrary, when the Indian summer monsoon and the East Asian summer monsoon are weak, the north edge of the Asian summer monsoon lies more southward and precipitation of the eastern region of Northwest China decreases. Many high resolution climate records both from ocean and continent show that solar activity drives the Holocene Asian summer monsoon variations on multi-decadal to centennial scales (von Rad et al, 1999;Wang and Sarnthein, 1999;Hong et al, 2001;Neff et al, 2001;Fleitmann et al, 2003;Dykoski et al, 2005;Wang et al, 2005;Dong et al, 2006). Carbon-14 ( 14 C) and beryllium-10 ( 10 Be) records are considered most reliable proxies of changes in solar activity (Hoyt and Schatten, 1997;Magny, 2004;Muscheler et al, 2007), although cosmogenic radionuclide records are also influenced by both the geomagnetic field and climate (Renssen et al, 2000;Muscheler et al, 2007).…”

Section: Driving Force Of Precipitation Variations Of Longxi In the Lmentioning

confidence: 99%

Precipitation variations of Longxi, northeast margin of Tibetan Plateau since AD 960 and their relationship with solar activity

Tan¹,

Cai²,

Long³

et al. 2008

Clim. Past

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Abstract. The precipitation variations of Longxi area, northeast margin of the Tibetan Plateau since AD 960 are reconstructed from Chinese historical documentary records. These records show that since AD 960, the precipitation of Longxi decreased and reached the lowest level at the end of the 17th and the 18th centuries. After this period, the precipitation gradually increased. The three short wet periods of Longxi in the last millennium were: from the end of the 10th century to the early years of the 11th century, from the end of the 12th century to the early years of the 13th century and during the first half of the 20th century. The precipitation variations coincide well with variations of the Northern Hemisphere temperature and the atmospheric 14 C concentration, as well as the averaged 10 Be concentration and the reconstructed solar modulation record which show that solar activity may be an important driving force of the precipitation variations of Longxi on multi-decadal to centennial scales during the last millennium. Solar activity controls the motion of the north edge of the Asian summer monsoon by affecting the Asia summer monsoon intensity, the East Asian winter monsoon intensity and the locations of westerlies, thus further dominating precipitation variations of Longxi. Synchronous variations of Longxi precipitation and Northern Hemisphere temperature may also be ascribed to the same control of solar activity.

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“…In the stage dominated by C 4 plants, δ 13 C peaks with lower values can be interpreted as a higher contribution of algal and C 3 plant organic matter, both of which are favored by wetter conditions. At the same time, C 3 plant fractionation is sensitive to humidity and precipitation, as shown in isotope measurements on cellulose and macrofossils on peatland records (Aucour et al, 1999;Hong et al, 2001). Higher levels of precipitation and soil moisture and a closer canopy result in lower δ…”

mentioning

confidence: 97%

“…In addition to differences in metabolic pathways of peat-forming vegetation, δ 13 C can provide information on changes in productivity and environmental conditions, such as insolation or humidity (Hong et al, 2001). In the stage dominated by C 4 plants, δ 13 C peaks with lower values can be interpreted as a higher contribution of algal and C 3 plant organic matter, both of which are favored by wetter conditions.…”

mentioning

confidence: 99%

A 70,000 year multiproxy record of climatic and environmental change from Rano Aroi peatland (Easter Island)

Margalef

Cañellas-Boltà

Pla-Rabés

et al. 2013

Global and Planetary Change

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This article appeared in a journal published by Elsevier. The attached copy is furnished to the author for internal non-commercial research and education use, including for instruction at the authors institution and sharing with colleagues.Other uses, including reproduction and distribution, or selling or licensing copies, or posting to personal, institutional or third party websites are prohibited. The Rano Aroi mire on Easter Island (also known as Rapa Nui; 27°09′S, 109°27′W, 430 m above sea level) provides a unique non-marine record in the central South Pacific Ocean for reconstructing Late Pleistocene environmental changes. The results of a multiproxy study on two cores from the center and margin of the Rano Aroi mire, including peat stratigraphy, facies analysis, elemental and isotope geochemistry on bulk organic matter, X-ray fluorescence (XRF) core scanning and macrofossil analysis, were used to infer past water levels and vegetation changes. The chronology was based on 18 14C AMS dates for the upper 8.7 m. The extrapolated age for the base of the sequence is 70 kyr, which implies that this record is the oldest paleolimnological record on Easter Island. The recovered Rano Aroi sequence consists of a radicel peat formed primarily from the remains of sedges, grasses and Polygonaceae that have accumulated since Marine Isotopic Stage (MIS) 4 (70 kyr BP) to the present. From 60 to 40 kyr BP (MIS 3), high precipitation/runoff events were recorded as organic mud facies with lighter δ 13 C, low C/N values and high Ti content, indicating higher detritic input to the mire. A gradual shift in δ 13 C bulk organic matter from −14% to −26%, recorded between 50 and 45 cal kyr BP, suggests a progressive change in local peat-forming vegetation from C4 to C3 plant types. Post-depositional Ca and Fe enrichment during sub-aerial peat exposure and very low sedimentation rates indicate lower water tables during Late MIS 3 (39-31 cal kyr BP). During MIS 2 (27.8-19 cal kyr BP), peat production rates were very low, most likely due to cold temperatures, as reconstructed from other Easter Island records during the Last Glacial Maximum (LGM). Geochemical and macrofossil evidence shows that peat accumulation reactivates at approximately 17.5 cal kyr BP, reaching the highest accumulation rates at 14 cal kyr BP. Peat accretion decreased from 5.0 to 2.5 cal kyr BP, coinciding with a regional Holocene aridity phase. The main hydrological and environmental changes in Rano Aroi reflect variations in the South Pacific Convergence Zone (SPCZ), Southern Westerlies (SW) storm track, and South Pacific Anticyclone (SPA) locations.

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A 6000-year record of changes in drought and precipitation in northeastern China based on a δ13C time series from peat cellulose

Cited by 189 publications

References 36 publications

Development and refinement of proxy-climate indicators from peats

Development and refinement of proxy-climate indicators from peats

Precipitation variations of Longxi, northeast margin of Tibetan Plateau since AD 960 and their relationship with solar activity

A 70,000 year multiproxy record of climatic and environmental change from Rano Aroi peatland (Easter Island)

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