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- W3044883926 endingPage "788" @default.
- W3044883926 startingPage "774" @default.
- W3044883926 abstract "Abstract 21st‐century modeling of greenhouse gas (GHG) emissions from bioenergy crops is necessary to quantify the extent to which bioenergy production can mitigate climate change. For over 30 years, the Century‐based biogeochemical models have provided the preeminent framework for belowground carbon and nitrogen cycling in ecosystem and earth system models. While monthly Century and the daily time‐step version of Century (DayCent) have advanced our ability to predict the sustainability of bioenergy crop production, new advances in feedstock generation, and our empirical understanding of sources and sinks of GHGs in soils call for a re‐visitation of DayCent's core model structures. Here, we evaluate current challenges with modeling soil carbon dynamics, trace gas fluxes, and drought and age‐related impacts on bioenergy crop productivity. We propose coupling a microbial process‐based soil organic carbon and nitrogen model with DayCent to improve soil carbon dynamics. We describe recent improvements to DayCent for simulating unique plant structural and physiological attributes of perennial bioenergy grasses. Finally, we propose a method for using machine learning to identify key parameters for simulating N 2 O emissions. Our efforts are focused on meeting the needs for modeling bioenergy crops; however, many updates reviewed and suggested to DayCent will be broadly applicable to other systems." @default.
- W3044883926 created "2020-07-29" @default.
- W3044883926 creator A5009573971 @default.
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- W3044883926 creator A5073783225 @default.
- W3044883926 creator A5077618789 @default.
- W3044883926 creator A5077728009 @default.
- W3044883926 date "2020-08-25" @default.
- W3044883926 modified "2023-10-06" @default.
- W3044883926 title "21st‐century biogeochemical modeling: Challenges for Century‐based models and where do we go from here?" @default.
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- W3044883926 doi "https://doi.org/10.1111/gcbb.12730" @default.