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journal article Open Access Jan 01, 2023

Modeling Perennial Bioenergy Crops in the E3SM Land Model (ELMv2)

Eva Sinha ORCID Katherine V. Calvin Ben Bond‐Lamberty Beth A. Drewniak ORCID Daniel M. Ricciuto Khachik Sargsyan ORCID Yanyan Cheng ORCID Carl Bernacchi Caitlin E. Moore ORCID
Journal of Advances in Modeling Earth Systems Vol. 15 No. 1 · American Geophysical Union (AGU)
View at Publisher Save 10.1029/2022ms003171
Abstract
AbstractPerennial bioenergy crops are increasingly important for the production of ethanol and other renewable fuels, and as part of an agricultural system that alters the climate through its impact on biogeophysical and biogeochemical properties of the terrestrial ecosystem. Few Earth System Models (ESMs) represent such crops, however. In this study, we expand the Energy Exascale Earth System Land Model to include perennial bioenergy crops with a high potential for mitigating climate change. We focus on high‐productivity miscanthus and switchgrass, estimating various parameters associated with their different growth stages and performing a global sensitivity analysis to identify and optimize these parameters. The sensitivity analysis identifies five parameters associated with phenology, carbon/nitrogen allocation, stomatal conductance, and maintenance respiration as the most sensitive parameters for carbon and energy fluxes. We calibrated and validated the model against observations and found that the model closely captures the observed seasonality and the magnitude of carbon fluxes. The validated model represents the latent heat flux fairly well, but sensible heat flux for miscanthus is not well captured. Finally, we validated the model against observed leaf area index (LAI) and harvest amount and found modeled LAI captured observed seasonality, although the model underestimates LAI and harvest amount. This work provides a foundation for future ESM analyses of the interactions between perennial bioenergy crops and carbon, water, and energy dynamics in the larger Earth system, and sets the stage for studying the impact of future biofuel expansion on climate and terrestrial systems.
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Global river water quality under climate change and hydroclimatic extremes

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Metrics
16
Citations
71
References
Details
Published
Jan 01, 2023
Vol/Issue
15(1)
License
View
Authors
E
Eva Sinha

Pacific Northwest National Laboratory Richland WA USA

K
Katherine V. Calvin

Joint Global Change Research Institute Pacific Northwest National Laboratory College Park MD USA

B
Ben Bond‐Lamberty

Joint Global Change Research Institute Pacific Northwest National Laboratory College Park MD USA

B
Beth A. Drewniak

Argonne National Laboratory Lemont IL USA

D
Daniel M. Ricciuto

Oak Ridge National Laboratory Oak Ridge TN USA

K
Khachik Sargsyan

Sandia National Laboratories Livermore CA USA

Y
Yanyan Cheng

Pacific Northwest National Laboratory Richland WA USA; Department of Industrial Systems Engineering and Management National University of Singapore Singapore Singapore

C
Carl Bernacchi

Global Change and Photosynthesis Research Unit USDA‐ARS Urbana IL USA; University of Illinois at Urbana‐Champaign Urbana IL USA

C
Caitlin E. Moore

University of Illinois at Urbana‐Champaign Urbana IL USA; School of Agriculture and Environment The University of Western Australia Crawley WA Australia

Cite This Article
Eva Sinha, Katherine V. Calvin, Ben Bond‐Lamberty, et al. (2023). Modeling Perennial Bioenergy Crops in the E3SM Land Model (ELMv2). Journal of Advances in Modeling Earth Systems, 15(1). https://doi.org/10.1029/2022ms003171
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