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Contribution of land use to the interannual variability of the land carbon cycle

Author

Listed:
  • Chao Yue

    (Northwest A&F University
    Université Paris-Saclay)

  • Philippe Ciais

    (Université Paris-Saclay)

  • Richard A. Houghton

    (Woods Hole Research Center)

  • Alexander A. Nassikas

    (Woods Hole Research Center)

Abstract

Understanding the driving mechanisms of the interannual variability (IAV) of the net land carbon balance (Snet) is important to predict future climate–carbon cycle feedbacks. Past studies showed that the IAV of Snet was correlated with tropical climate variation and controlled by semiarid vegetation. But today’s land ecosystems are also under extensive human land use and management. Here, we report a previously hidden role of land use in driving the IAV of Snet by using an improved biosphere model. We found that managed land accounted for 30–45% of the IAV of Snet over 1959–2015, while the contribution of intact land is reduced by more than half compared with previous assessments of the global carbon budget. Given the importance of land use in modulating future land climate–carbon cycle feedbacks, climate mitigation efforts should strive to reduce land-use emissions and enhance the climate resilience of carbon sinks over managed land.

Suggested Citation

  • Chao Yue & Philippe Ciais & Richard A. Houghton & Alexander A. Nassikas, 2020. "Contribution of land use to the interannual variability of the land carbon cycle," Nature Communications, Nature, vol. 11(1), pages 1-11, December.
    • Handle: RePEc:nat:natcom:v:11:y:2020:i:1:d:10.1038_s41467-020-16953-8
    DOI: 10.1038/s41467-020-16953-8
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    Cited by:

    1. Xiangzhong Luo & Trevor F. Keenan, 2022. "Tropical extreme droughts drive long-term increase in atmospheric CO2 growth rate variability," Nature Communications, Nature, vol. 13(1), pages 1-10, December.
    2. Selma Bultan & Julia E. M. S. Nabel & Kerstin Hartung & Raphael Ganzenmüller & Liang Xu & Sassan Saatchi & Julia Pongratz, 2022. "Tracking 21st century anthropogenic and natural carbon fluxes through model-data integration," Nature Communications, Nature, vol. 13(1), pages 1-14, December.
    3. Zhen Yu & Philippe Ciais & Shilong Piao & Richard A. Houghton & Chaoqun Lu & Hanqin Tian & Evgenios Agathokleous & Giri Raj Kattel & Stephen Sitch & Daniel Goll & Xu Yue & Anthony Walker & Pierre Frie, 2022. "Forest expansion dominates China’s land carbon sink since 1980," Nature Communications, Nature, vol. 13(1), pages 1-12, December.
    4. Wen Liu & Long Ma & Jilili Abuduwaili & Gulnura Issanova & Galymzhan Saparov, 2021. "Sediment Organic Carbon Sequestration of Balkhash Lake in Central Asia," Sustainability, MDPI, vol. 13(17), pages 1-13, September.

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