Modeling the influence of snow cover on low Arctic net ecosystem exchange

Autor: K A Luus, R E J Kelly, J C Lin, E R Humphreys, P M Lafleur, W C Oechel

Publikováno v: Environmental Research Letters, Vol 8, Iss 3, p 035045 (2013)

The Arctic net ecosystem exchange (NEE) of CO _2 between the land surface and the atmosphere is influenced by the timing of snow onset and melt. The objective of this study was to examine whether uncertainty in model estimates of NEE could be reduced

Externí odkaz: https://doaj.org/article/18ab9da8239945e998c9c8f541075a65

Investigating Alaskan methane and carbon dioxide fluxes using measurements from the CARVE tower

Autor: A. Karion, C. Sweeney, J. B. Miller, A. E. Andrews, R. Commane, S. Dinardo, J. M. Henderson, J. Lindaas, J. C. Lin, K. A. Luus, T. Newberger, P. Tans, S. C. Wofsy, S. Wolter, C. E. Miller

Publikováno v: Atmospheric Chemistry and Physics, Vol 16, Pp 5383-5398 (2016)

Northern high-latitude carbon sources and sinks, including those resulting from degrading permafrost, are thought to be sensitive to the rapidly warming climate. Because the near-surface atmosphere integrates surface fluxes over large ( ∼ 500–

Externí odkaz: https://doaj.org/article/4d5bec0aa147429bba4292b849629286

Pan-Arctic linkages between snow accumulation and growing-season air temperature, soil moisture and vegetation

Autor: K. A. Luus, Y. Gel, J. C. Lin, R. E. J. Kelly, C. R. Duguay

Publikováno v: Biogeosciences, Vol 10, Iss 11, Pp 7575-7597 (2013)

Arctic field studies have indicated that the air temperature, soil moisture and vegetation at a site influence the quantity of snow accumulated, and that snow accumulation can alter growing-season soil moisture and vegetation. Climate change is pr

Externí odkaz: https://doaj.org/article/feed74b4a2b240d4828f1e2e8f06df9c

Spring photosynthetic onset and net CO 2 uptake in Alaska triggered by landscape thawing

Autor: Josh Benmergui, K. A. Luus, Junjie Liu, Thomas A. M. Pugh, Charles E. Miller, Nicholas C. Parazoo, Randy Kawa, Christian Rödenbeck, Roisin Commane, Walter C. Oechel, Kyle A. Arndt, Eugénie S. Euskirchen, Donatella Zona, N. Steiner, Almut Arneth, Ben Smith, Eric Stofferahn

Publikováno v: Global Change Biology. 24:3416-3435

The springtime transition to regional-scale onset of photosynthesis and net ecosystem carbon uptake in boreal and tundra ecosystems are linked to the soil freeze-thaw state. We present evidence from diagnostic and inversion models constrained by sate

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::f4ba4615281a3d4ca9961a978af8de8f
https://doi.org/10.1111/gcb.14283

Decadal biomass increment in early secondary succession woody ecosystems is increased by CO2 enrichment

Autor: Edmund Ryan, Jianyang Xia, Shinichi Asao, Bruce A. Hungate, Belinda E. Medlyn, Alan F. Talhelm, Richard J. Norby, J. Patrick Megonigal, Atul K. Jain, K. A. Luus, Ram Oren, Martin G. De Kauwe, Colleen M. Iversen, Anna B. Harper, Ying-Ping Wang, Christian Werner, Thomas Hickler, Yiqi Luo, Bai Yang, Shijie Shu, Sönke Zaehle, Bertrand Guenet, Donald R. Zak, Jeffrey M. Warren, Xingjie Lu, Meng Lu, Anthony P. Walker

Publikováno v: Nature Communications
Nature Communications, Nature Publishing Group, 2019, 10 (1), ⟨10.1038/s41467-019-08348-1⟩
Articles
Nature Communications, 2019, 10 (1), ⟨10.1038/s41467-019-08348-1⟩
Walker, A, De Kauwe, M, Medlyn, B, Iversen, C, Zaehle, S, Asao, S, Guenet, B, Harper, A, Hickler, T, Hungate, B, Jain, A, Luo, Y, Lu, X, Lu, M, Luus, K, Megonigal, P, Oren, R, Ryan, E, Shu, S, Talhelm, A, Wang, Y, Warren, J, Werner, C, Xia, J, Wang, B, Zak, D & Norby, R 2019, ' Decadal biomass increment in early secondary succession woody ecosystems is increased by CO2 enrichment ', Nature Communications . https://doi.org/10.1038/s41467-019-08348-1
Nature Communications, Vol 10, Iss 1, Pp 1-13 (2019)
Nature communications, vol 10, iss 1
Walker, A P, De Kauwe, M G, Medlyn, B E, Zaehle, S, Iversen, C M, Asao, S, Guenet, B, Harper, A, Hickler, T, Hungate, B A, Jain, A K, Luo, Y, Lu, X, Lu, M, Luus, K, Megonigal, J P, Oren, R, Ryan, E, Shu, S, Talhelm, A, Wang, Y P, Warren, J M, Werner, C, Xia, J, Yang, B, Zak, D R & Norby, R J 2019, ' Decadal biomass increment in early secondary succession woody ecosystems is increased by CO2 enrichment ', Nature Communications, vol. 10, 454 (2019) . https://doi.org/10.1038/s41467-019-08348-1

Increasing atmospheric CO2 stimulates photosynthesis which can increase net primary production (NPP), but at longer timescales may not necessarily increase plant biomass. Here we analyse the four decade-long CO2-enrichment experiments in woody ecosys

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::73838d2be655e57a00a28504f7a52f36
http://hdl.handle.net/10138/299809