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Abstract <p>The possibility that terrestrial ecosystems as a whole may shift from a carbon sink to a carbon source is a major concern in climate change science. According to numerical experiments on Earth System Models, this is unlikely to happen in the near future. However, the transformation from a carbon sink to a carbon source seems much more likely in the case of some regions. Analyzing an ecosystem carbon cycle with a model of reduced complexity, we find that low sensitivity of regional actual evapotranspiration to global warming might be a distinctive feature of the regions which are relatively safe for allocation of the land-based carbon dioxide removal projects.</p>

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CO2-driven Shift of a Tipping Point in Net Ecosystem Production

  • 期刊论文

  • 发表日期：

    2025年10月14日

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  • Yiping Wu,
  • G. A. Alexandrov,
  • A. V. Eliseev,
  • A. V. Chernokulsky

摘要

Abstract

The possibility that terrestrial ecosystems as a whole may shift from a carbon sink to a carbon source is a major concern in climate change science. According to numerical experiments on Earth System Models, this is unlikely to happen in the near future. However, the transformation from a carbon sink to a carbon source seems much more likely in the case of some regions. Analyzing an ecosystem carbon cycle with a model of reduced complexity, we find that low sensitivity of regional actual evapotranspiration to global warming might be a distinctive feature of the regions which are relatively safe for allocation of the land-based carbon dioxide removal projects.