edu.ucar.opensky::articles:26436 UCAR/NCAR - Library OpenSky Support PO Box 3000 Boulder CO 80307-3000 opensky@ucar.edu http://opensky.ucar.edu/ homepage pointOfContact 2025-12-24T19:33:18.077080 ISO 19115-2 Geographic Information - Metadata - Part 2: Extensions for Imagery and Gridded Data ISO 19115-2:2009(E) https://n2t.org/ark:/85065/d7zw1qxz https://doi.org/10.6084/m9.figshare.21118711.v1 https Related Dataset #1 Uncertainty and emergent constraints on enhanced ecosystem C stock by land greening https://doi.org/10.6084/m9.figshare.8942336.v3 https Related Dataset #2 Improved estimate of global gross primary production for reproducing its long-term variation, 1982-2017 Uncertainty and emergent constraints on enhanced ecosystem carbon stock by land greening 2023-05-01T00:00:00Z publication https://n2t.org/ark:/85065/d7zw1qxz https://doi.org/10.1029/2022MS003397 Bian, C. author Xia, J. author ZHANG, X. author Huang, K. author Cui, E. author Zhou, J. author Wei, N. author Wang, Y. author Lombardozzi, Danica author Goll, D. S. author Knauer, J. author Arora, V. author Yuan, W. author Sitch, S. author Friedlingstein, P. author Luo, Y. author UCAR/NCAR - Library publisher Significant land greening since the 1980s has been detected through satellite observation, forest inventory, and Earth system modeling. However, whether and to what extent global land greening enhances ecosystem carbon stock remains uncertain. Here, using 40 global models, we first detected a positive correlation between the terrestrial ecosystem carbon stock and leaf area index (LAI) over time. Then, we diagnose the source of uncertainty of simulated the sensitivities of ecosystem carbon stock to LAI based on a traceability analysis. We found that the sensitivity of gross primary productivity (GPP) to LAI is the largest contributor to the model uncertainty in more than 60% of the vegetated grids. Using the ensemble of four long-term global data sets of GPP and three satellite LAI products from 1982 to 2014, we provided an emergent constraint on the ecosystem carbon stock increase as 0.75 +/- 0.46 kg C m(-2) per unit LAI over global land areas. Furthermore, the biome-based results reveal that the tropical forest regions have the highest inter-model variation and model bias. Overall, this study identifies the uncertainty source and provides constrained estimates of the greening effect on ecosystem carbon stock at the global scale. UCAR/NCAR - Library OpenSky Support PO Box 3000 Boulder CO 80307-3000 opensky@ucar.edu http://opensky.ucar.edu/ homepage pointOfContact PDF Text theme Resource Type 2016-01-01T00:00:00Z publication Copyright author(s). This work is licensed under a Creative Commons Attribution-NonCommercial 4.0 International License. None eng geoscientificInformation