Vegetation Greening Enhanced the Regional Terrestrial Carbon Uptake in the Dongting Lake Basin of China

Terrestrial ecosystem carbon uptake is essential to achieving a regional neutrality strategy, particularly in subtropical humid areas with dense vegetation. Due the complex spatial and temporal heterogeneity of ecosystems, it difficult quantify influence contribution different factors. With aid multisource remote sensing data, spatiotemporal characteristics impact vegetation change were explored Dongting Lake Basin from 2001 2020. Based on Conversion Land Use its Effects at Small extent (CLUE-S) model, we simulated land use basin under development scenarios 2030. Our results showed that has demonstrated significant greening trend last 20 years, multiyear average NDVI (normalized difference index) 0.60 an increasing (y = 0.0048x − 9.069, R2 0.89, p < 0.01). In this context, mean net productivity (NEP) was 314.95 g C·m−2·a−1 also 1.8915x + 295.09, 0.23, 0.05). Moreover, though future might decrease because enhanced anthropogenic activities, ecological conservation scenario mitigate reduction by 0.05 × 107 t. conclusion, lake basin. Considering representativeness Basin, our study would provide useful clues for understanding pattern terrestrial guiding strategy area.