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Phytolith and simul...
Phytolith and simulation evidence for precipitation-modulated vegetation dynamics along the East Asian monsoon margin
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- Li, Nannan (författare)
- Ministry of Education, China,Xiamen University,Northeast Normal University
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- Song, Lina (författare)
- Ministry of Education, China,Northeast Normal University
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- Sack, Dorothy (författare)
- Ohio University
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- Lu, Zhengyao (författare)
- Lund University,Lunds universitet,BECC: Biodiversity and Ecosystem services in a Changing Climate,Centrum för miljö- och klimatvetenskap (CEC),Naturvetenskapliga fakulteten,MERGE: ModElling the Regional and Global Earth system,Institutionen för naturgeografi och ekosystemvetenskap,Centre for Environmental and Climate Science (CEC),Faculty of Science,Dept of Physical Geography and Ecosystem Science
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- Yu, Fengling (författare)
- Xiamen University
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- Gao, Guizai (författare)
- Ministry of Education, China,Northeast Normal University
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- Li, Dehui (författare)
- Hebei Normal University
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- Li, Mengzhen (författare)
- Northeast Normal University,Ministry of Education, China
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- Yang, Yue (författare)
- Northeast Normal University,Ministry of Education, China
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- Zong, Yazhuo (författare)
- Northeast Normal University,Ministry of Education, China
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- Jie, Dongmei (författare)
- Ministry of Education, China,Northeast Normal University
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(creator_code:org_t)
- Elsevier BV, 2022
- 2022
- Engelska.
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Ingår i: Palaeogeography, Palaeoclimatology, Palaeoecology. - : Elsevier BV. - 0031-0182. ; 590
- Relaterad länk:
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http://dx.doi.org/10...
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https://lup.lub.lu.s...
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https://doi.org/10.1...
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Abstract
Ämnesord
Stäng
- An improved understanding of past interactions between terrestrial vegetation and various forcings, such as climate change, human impact, and paleofire, is crucial for assessing impacts of future global change on terrestrial ecosystems. This study seeks to find the key factor or factors that have driven Holocene vegetation change along the East Asian monsoon margin. Several high-resolution pollen records are reviewed and new phytolith-based paleovegetation reconstructions and physical geochemical datasets are presented from a peatland in northeastern China. Using 108 modern topsoil samples as a training set, canopy cover and vegetation composition are estimated for the period since 5100 cal. yr BP. Variation partitioning analysis (VPA) is used to determine the relative importance of climate change, human impacts, and paleofire disturbance. The generalized dynamic vegetation model LPJ-GUESS is forced with climate anomaly output from an atmospheric general circulation model to simulate vegetation dynamics during the mid-Holocene and the pre-industrial era. The proxy-based estimates are compared to modelling output. Results indicate that regional tree cover varied from 10% to 40% during the past five millennia. The single-core, phytolith-based reconstructions are generally consistent with stacked tree pollen z-scores calculated from different records along the East Asian monsoon margin, implying that mid-Holocene tree cover decrease was persistent and almost synchronous over extensive areas. VPA demonstrates that long-term monsoon marginal vegetation successions were mainly caused by climate effects. Numerical modelling suggests that since the mid-Holocene the retreat of forests along the monsoon margin was primarily associated with precipitation deficits. Our investigation highlights that the precipitation associated with the East Asian monsoon system has exerted a stronger influence than the westerlies on the monsoon margin climate and vegetation change. With ongoing global change, close attention to variations in precipitation patterns and amounts should be especially helpful in efforts aimed at ecological monitoring, change prediction, and restoration.
Ämnesord
- NATURVETENSKAP -- Geovetenskap och miljövetenskap -- Klimatforskning (hsv//swe)
- NATURAL SCIENCES -- Earth and Related Environmental Sciences -- Climate Research (hsv//eng)
Nyckelord
- Holocene
- LPJ-GUESS
- Paleoecology
- Peat
- Phytolith
- Vegetation dynamics
Publikations- och innehållstyp
- art (ämneskategori)
- ref (ämneskategori)
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Till lärosätets databas
- Av författaren/redakt...
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Li, Nannan
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Song, Lina
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Sack, Dorothy
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Lu, Zhengyao
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Yu, Fengling
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Gao, Guizai
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visa fler...
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Li, Dehui
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Li, Mengzhen
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Yang, Yue
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Zong, Yazhuo
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Jie, Dongmei
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visa färre...
- Om ämnet
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- NATURVETENSKAP
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NATURVETENSKAP
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och Geovetenskap och ...
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och Klimatforskning
- Artiklar i publikationen
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Palaeogeography, ...
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Lunds universitet