Articles | Volume 17, issue 17
https://doi.org/10.5194/bg-17-4421-2020
https://doi.org/10.5194/bg-17-4421-2020
Research article
 | 
04 Sep 2020
Research article |  | 04 Sep 2020

Vegetation influence and environmental controls on greenhouse gas fluxes from a drained thermokarst lake in the western Canadian Arctic

June Skeeter, Andreas Christen, Andrée-Anne Laforce, Elyn Humphreys, and Greg Henry

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Cited articles

Anders, U. and Korn, O.: Model selection in neural networks, Neural Networks, 12, 309–323, https://doi.org/10.1016/S0893-6080(98)00117-8, 1999. 
Aubinet, M., Vesala, T., and Papale, D. (Eds.): Eddy Covariance: A Practical Guide to Measurement and Data Analysis, 2012 edition, Springer, Dordrecht, New York., 2012. 
Biasi, C., Meyer, H., Rusalimova, O., Hämmerle, R., Kaiser, C., Baranyi, C., Daims, H., Lashchinsky, N., Barsukov, P., and Richter, A.: Initial effects of experimental warming on carbon exchange rates, plant growth and microbial dynamics of a lichen-rich dwarf shrub tundra in Siberia, Plant Soil, 307, 191–205, https://doi.org/10.1007/s11104-008-9596-2, 2008. 
Billings, W. and Peterson, K.: Vegetational Change and Ice-Wedge Polygons Through the Thaw-Lake Cycle, Arc. Antarct. Alp. Res., 12, 413–432, https://doi.org/10.2307/1550492, 1980. 
Breiman, L.: Random forests, Mach. Learn., 45, 5–32, 2001. 
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Short summary
This study investigates carbon fluxes at Illisarvik, an artificial drained thermokarst lake basin (DTLB) in Canada's Northwest Territories. This is the first carbon balance study in a DTLB outside of Alaska. We used neural networks to identify the factors controlling fluxes and to model the effects of the controlling factors. We discuss the role of vegetation heterogeneity in fluxes, especially of methane, and we show how the carbon fluxes differ from Alaskan DTLBs.
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