| 摘 要： |
To maintain the global temperature increase within 2 degrees C, it is necessary to accelerate the implementation of rapid and sustained mitigation and adaptation actions to reduce the estimated losses and damages to humans and ecosystems caused by climate change. This study used 2060 as the time node, simulated the land use/cover change (LUCC), carbon emissions (CE) and carbon sinks (CS) in 2060 by setting business-as-usual (BAU) and nature-based solutions (NbS) scenarios, and carried out spatial superposition analysis according to six geographical divisions to explore the carbon neutrality situation of 395 county-level cities between and within six regions. The specific conclusions were as follows: under the NbS scenario, compared with China as a whole, there was hysteresis in the carbon neutrality at the county-level city scale. Although the NbS scenario can promote the carbon neutrality process at the county-level city scale, there is still spatial unfairness in the carbon emissions among the six geographic divisions. Our research results emphasize the positive and negative effects of the long-term influence processes of NbS on carbon emissions in county-level cities and provide theoretical support at the national and county-level city levels for realizing the maximum potential and synergistic effects of NbS in the future. |
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