2026-10-12T20:00:36Z https://data.mendeley.com/oai

oai:data.mendeley.com/5dk5w77kdj.2 2026-05-08T06:51:10Z

Zheng, Lei Carbon dynamics of grasslands on the Tibetan Plateau simulated by Biome-BGCMuSo (1979-2018) Mendeley Data This dataset is grounded in the hypothesis that carbon dynamics in terrestrial ecosystems are differentially influenced by individual and combined environmental drivers, including climate change, CO₂ fertilization, precipitation variability, temperature shifts, and anthropogenic activities (e.g., grazing). By simulating 9 distinct scenarios, the study aims to quantify the relative contributions of isolated drivers (e.g., CO₂, temperature) versus synergistic effects (e.g., CO₂ + climate change) on carbon pools and fluxes. Simulation Framework • Model: Biome-BGCMuSo v6.1, a process-based model integrating vegetation dynamics, soil biogeochemistry, and grazing. • Scenarios: Nine scenarios were simulated under identical initial conditions: i. Control: Baseline conditions (no perturbations). ii. Clim: Climate change (temperature + precipitation changes). iii. CO2: Elevated atmospheric CO₂ concentration. iv. CO2Clim: Combined CO₂ and climate change. v. Grazing: Changed grazing intensity. vi. Overall: Integration of all drivers (CO₂, climate, grazing). vii. Prec: Changed Precipitation. viii. Temp: Changed Temperature. ix. NO_Grazing: No grazing. • Variables: Each scenario outputs seven carbon-related variables: o Biomass: Above- and belowground live plant biomass (g C m⁻²). o LTRC: Litter carbon pool (g C m⁻²). o NPP: Net Primary Productivity (g C m⁻² yr⁻¹). o SOC: Soil organic carbon above 1 m soil depth (g C m⁻²). o TOTC: Total ecosystem carbon (sum of vegetation, litter, and soil) (g C m⁻²). o TOTSOC: Total soil carbon (including multiple soil layers if applicable) (g C m⁻²). o VEGC: Vegetation carbon (woody and non-woody components) (g C m⁻²). Model-related grazing data: Name Description Units LargeLivestock_Inventory Large animal stock (cattle, horses, etc.) absolute number of animals per pixel LargeLivestock_Slaughter Large animal slaughter volumes absolute number of animals per pixel SheepGoat_Inventory Sheep & goat combined stock absolute number of animals per pixel SheepGoat_Slaughter Sheep & goat combined slaughter volumes absolute number of animals per pixel StockDensity_Winter Winter pasture stocking density head/km² (sheep-equivalent units) StockDensity_Summer Summer pasture stocking density head/km² (sheep-equivalent units) Seasonal pasture distribution Four composite classes: • Winter-Steppe • Winter-Meadow • Summer-Steppe • Summer-Meadow Temporal and Spatial Scope • Time Period: Simulations span 1979–2018 with annual resolution. • Geographic Coverage: Grasslands in the Tibetan Plateau. Ecology Grassland Carbon Balance Grazing Management Tibetan Plateau Alpine Grassland Dataset doi:10.17632/5dk5w77kdj.2 oai:data.mendeley.com/5dk5w77kdj.2 Creative Commons Attribution 4.0 International http://creativecommons.org/licenses/by/4.0 https://data.mendeley.com/datasets/5dk5w77kdj 2026-05-08T06:51:10Z