ORCID Profile
0000-0003-2839-0699
Current Organisations
Mae Fah Luang University
,
Chiang Mai University
,
University of Utah
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Publications
A Process‐Model Perspective on Recent Changes in the Carbon Cycle of North America
Publisher: American Geophysical Union (AGU)
Date: 09-2022
DOI: 10.1029/2022JG006904
Abstract: Continental North America has been found to be a carbon (C) sink over recent decades by multiple studies employing a variety of estimation approaches. However, several key questions and uncertainties remain with these assessments. Here we used results from an ensemble of 19 state‐of‐the‐art dynamic global vegetation models from the TRENDYv9 project to improve these estimates and study the drivers of its interannual variability. Our results show that North America has been a C sink with a magnitude of 0.37 ± 0.38 (mean and one standard deviation) PgC year −1 for the period 2000–2019 (0.31 and 0.44 PgC year −1 in each decade) split into 0.18 ± 0.12 PgC year −1 in Canada (0.15 and 0.20), 0.16 ± 0.17 in the United States (0.14 and 0.17), 0.02 ± 0.05 PgC year −1 in Mexico (0.02 and 0.02) and 0.01 ± 0.02 in Central America and the Caribbean (0.01 and 0.01). About 57% of the new C assimilated by terrestrial ecosystems is allocated into vegetation, 30% into soils, and 13% into litter. Losses of C due to fire account for 41% of the interannual variability of the mean net biome productivity for all North America in the model ensemble. Finally, we show that drought years (e.g., 2002) have the potential to shift the region to a small net C source in the simulations (−0.02 ± 0.46 PgC year −1 ). Our results highlight the importance of identifying the major drivers of the interannual variability of the continental‐scale land C cycle along with the spatial distribution of local sink‐source dynamics.
Naming and outline of Dothideomycetes–2014 including proposals for the protection or suppression of generic names
Publisher: Springer Science and Business Media LLC
Date: 11-2014
Predicting the evolutionary dynamics of seasonal adaptation to novel climates in Arabidopsis thaliana
Publisher: Proceedings of the National Academy of Sciences
Date: 02-05-2016
Abstract: Anticipating the effect of climate change on plants requires understanding its evolutionary consequence on traits and genes in complex realistic environments. How seasonal variation has an impact on the dynamics of adaptation in natural populations remains unclear. We simulated adaptation to different climate change scenarios, grounding our analysis in experimental data and explicitly exploring seasonal variation. Seasonal variation dramatically affected the dynamics of adaptation: Marked seasonality led to genetic differentiation within the population to different seasonal periods, whereas low seasonality led to a single population with fast-evolving fitness. Our results suggest the prevalence of phenotypic plasticity across environmental conditions in determining how climate change will shift selection on traits and loci. In this unpredictable context, maintaining broad genomic ersity is critical.
A case for re-inventory of Australia's plant pathogens
Publisher: Naturalis Biodiversity Center
Date: 23-12-2010
Related Organisations
Related Funding Activities
No related grants have been discovered for Jonathan Wang.