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Article Abstract
Rapid urbanization alters land use patterns and, in turn, regional carbon metabolism. Focusing on Hunan Province, China (2000-2020), we combined high-resolution land-use inventories with ecological network analysis to quantify carbon emissions, carbon sequestration, and the interactions among major land categories. Emissions rose markedly over two decades, driven mainly by expanding transportation and industrial zones. Forests and open woodlands remained the chief sinks, yet showed a declining sequestration capacity. Spatial mapping revealed persistent emission hotspots on urban fringes and within industrial parks, whereas high-sequestration areas clustered in protected forests. Network analysis identified competition, exploitation-control, and mutualistic linkages among land types, highlighting the ecological interdependencies that shape regional carbon flows. These findings clarify how specific land transitions amplify or mitigate carbon imbalance and provide actionable guidance for land-use planning aimed at strengthening ecosystem service capacity and supporting long-term carbon-neutral development.
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| http://www.ncbi.nlm.nih.gov/pmc/articles/PMC12392657 | PMC |
| http://dx.doi.org/10.1016/j.isci.2025.113209 | DOI Listing |
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