Construction of carbon budget balance index and its application in the lake area

The imbalance of the carbon cycle in terrestrial ecosystems exacerbates global warming. Identifying spatial–temporal characteristics and drivers budget is important for effective management complex achievement United Nations Sustainable Development Goals. Based on ecosystem theory, this article constructs two indicators, carrying capacity–carbon footprint matching degree (Carbon-MD), coupling coordination (Carbon-CCD). Taking a typical lake region—urban agglomeration around Poyang Lake as an example, driving factors from 2000 to 2020 are revealed by GIS technology geographically–temporally weighted regression model. results show that there significant spatial temporal variability city agglomerations 2020, Carbon-MD shows gradually decreasing trend, Carbon-CCD increasing characteristic moderate disorder basic development. From pattern, study area showed character core peripheral lake, low-value trend spreading point surface changes scattered group type. In addition, land use type always has effect budget, while heterogeneity effects natural socioeconomic budget. research it reasonable scientific construct indicators perspective supply demand coordination, which provides quantitative analysis tool local policymakers.