WangChenYuEtAl2015

Référence

Wang, M., Chen, H., Yu, Z., Wu, J., Zhu, Q., Peng, C., Wang, Y. and Qin, B. (2015) Carbon accumulation and sequestration of lakes in China during the Holocene. Global Change Biology, 21(12):4436-4448. (Scopus )

Résumé

Understanding the responses of lake systems to past climate change and human activity is critical for assessing and predicting the fate of lake carbon (C) in the future. In this study, we synthesized records of the sediment accumulation from 82 lakes and of C sequestration from 58 lakes with direct organic C measurements throughout China. We also identified the controlling factors of the long-term sediment and C accumulation dynamics in these lakes during the past 12 ka (1 ka = 1000 cal yr BP). Our results indicated an overall increasing trend of sediment and C accumulation since 12 ka, with an accumulation peak in the last couple of millennia for lakes in China, corresponding to terrestrial organic matter input due to land-use change. The Holocene lake sediment accumulation rate (SAR) and C accumulation rate (CAR) averaged (mean ± SE) 0.47 ± 0.05 mm yr-1 and 7.7 ± 1.4 g C m-2 yr-1 in China, respectively, comparable to the previous estimates for boreal and temperate regions. The SAR for lakes in the East Plain of subtropical China (1.05 ± 0.28 mm yr-1) was higher than those in other regions (P < 0.05). However, CAR did not vary significantly among regions. Overall, the variability and history of climate and anthropogenic interference regulated the temporal and spatial dynamics of sediment and C sequestration for lakes in China. We estimated the total amount of C burial in lakes of China as 8.0 ± 1.0 Pg C. This first estimation of total C storage and dynamics in lakes of China confirms the importance of lakes in land C budget in monsoon-influenced regions. © 2015 John Wiley & Sons Ltd.

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@ARTICLE { WangChenYuEtAl2015,
    AUTHOR = { Wang, M. and Chen, H. and Yu, Z. and Wu, J. and Zhu, Q. and Peng, C. and Wang, Y. and Qin, B. },
    TITLE = { Carbon accumulation and sequestration of lakes in China during the Holocene },
    JOURNAL = { Global Change Biology },
    YEAR = { 2015 },
    VOLUME = { 21 },
    PAGES = { 4436-4448 },
    NUMBER = { 12 },
    NOTE = { cited By 0 },
    ABSTRACT = { Understanding the responses of lake systems to past climate change and human activity is critical for assessing and predicting the fate of lake carbon (C) in the future. In this study, we synthesized records of the sediment accumulation from 82 lakes and of C sequestration from 58 lakes with direct organic C measurements throughout China. We also identified the controlling factors of the long-term sediment and C accumulation dynamics in these lakes during the past 12 ka (1 ka = 1000 cal yr BP). Our results indicated an overall increasing trend of sediment and C accumulation since 12 ka, with an accumulation peak in the last couple of millennia for lakes in China, corresponding to terrestrial organic matter input due to land-use change. The Holocene lake sediment accumulation rate (SAR) and C accumulation rate (CAR) averaged (mean ± SE) 0.47 ± 0.05 mm yr-1 and 7.7 ± 1.4 g C m-2 yr-1 in China, respectively, comparable to the previous estimates for boreal and temperate regions. The SAR for lakes in the East Plain of subtropical China (1.05 ± 0.28 mm yr-1) was higher than those in other regions (P < 0.05). However, CAR did not vary significantly among regions. Overall, the variability and history of climate and anthropogenic interference regulated the temporal and spatial dynamics of sediment and C sequestration for lakes in China. We estimated the total amount of C burial in lakes of China as 8.0 ± 1.0 Pg C. This first estimation of total C storage and dynamics in lakes of China confirms the importance of lakes in land C budget in monsoon-influenced regions. © 2015 John Wiley & Sons Ltd. },
    AUTHOR_KEYWORDS = { Aquatic ecosystems; Carbon stock; Climate change; Global carbon cycle; Human activities },
    DOCUMENT_TYPE = { Article },
    DOI = { 10.1111/gcb.13055 },
    KEYWORDS = { aquatic ecosystem; carbon cycle; carbon sequestration; climate variation; global change; Holocene; human activity; lacustrine deposit; organic carbon, China },
    SOURCE = { Scopus },
    URL = { http://www.scopus.com/inward/record.url?eid=2-s2.0-84946771846&partnerID=40&md5=cdf5a91d3c825dc0e3b3e2c6058c5ba7 },
}

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