The climate change mitigation potential of annual grasslands under future climates

This study investigates the impact of composted manure and green waste amendments on carbon sequestration in rangeland soils and their potential to reduce atmospheric CO2 levels. It also examines how future climate changes might affect soil organic carbon (SOC) stocks and greenhouse gas emissions in these ecosystems. Using the DayCent biogeochemical model, the researchers simulated the long-term effects of climate change on carbon dynamics in annual grasslands, both with and without compost amendments. The simulations, based on data from seven California grasslands, used climate projections from two Earth system models (CanESM2 and HadGEM-ES) and two emissions scenarios (RCP4.5 and RCP8.5) through 2100.

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