Mathematical Modelling of Arctic Polygonal Tundra with Ecosys: 2. Microtopography Determines How CO2 and CH4 Exchange Responds to Changes in Temperature and Precipitation
Abstract
Abstract Differences of surface elevation in arctic polygonal landforms cause spatial variation in soil water contents ( θ ), active layer depths (ALD), and thereby in CO 2 and CH 4 exchange. Here we test hypotheses in ecosys for topographic controls on CO 2 and CH 4 exchange in trough, rim, and center features of low‐ and flat‐centered polygons (LCP and FCP) against chamber and eddy covariance (EC) measurements during 2013 at Barrow, Alaska. Larger CO 2 influxes and CH 4 effluxes were measured with chambers and modeled with ecosys in LCPs than in FCPs and in lower features (troughs) than in higher (rims) within LCPs and FCPs. Spatially aggregated CO 2 and CH 4 fluxes from ecosys were significantly correlated with EC flux measurements. Lower features were modeled as C sinks (52–56 g C m −2 yr −1 ) and CH 4 sources (4–6 g C m −2 yr −1 ), and higher features as near C neutral (−2–15 g C m −2 yr −1 ) and CH 4 neutral (0.0–0.1 g C m −2 yr −1 ). Much of the spatial and temporal variations in CO 2 and CH 4 fluxes were modeled from topographic effects on water and snow movement and thereby on θ , ALD, and soil Omore »
- Authors:
-
[2];
- Univ. of Alberta, Edmonton, AB (Canada). Dept. of Renewable Resources
- Lawrence Berkeley National Lab. (LBNL), Berkeley, CA (United States). Earth Science Division
- Publication Date:
- Research Org.:
- Lawrence Berkeley National Laboratory (LBNL), Berkeley, CA (United States)
- Sponsoring Org.:
- USDOE Office of Science (SC), Biological and Environmental Research (BER)
- OSTI Identifier:
- 1433102
- Alternate Identifier(s):
- OSTI ID: 1414484
- Grant/Contract Number:
- AC02-05CH11231; DE‐AC02‐05CH11231
- Resource Type:
- Accepted Manuscript
- Journal Name:
- Journal of Geophysical Research. Biogeosciences
- Additional Journal Information:
- Journal Volume: 122; Journal Issue: 12; Journal ID: ISSN 2169-8953
- Publisher:
- American Geophysical Union
- Country of Publication:
- United States
- Language:
- English
- Subject:
- 54 ENVIRONMENTAL SCIENCES; 58 GEOSCIENCES; greenhouse gas exchange; modeling; ecosys; polygonal tundra; microtopography
Citation Formats
Grant, R. F., Mekonnen, Z. A., Riley, W. J., Arora, B., and Torn, M. S. Mathematical Modelling of Arctic Polygonal Tundra with Ecosys: 2. Microtopography Determines How CO2 and CH4 Exchange Responds to Changes in Temperature and Precipitation. United States: N. p., 2017.
Web. doi:10.1002/2017JG004037.
Grant, R. F., Mekonnen, Z. A., Riley, W. J., Arora, B., & Torn, M. S. Mathematical Modelling of Arctic Polygonal Tundra with Ecosys: 2. Microtopography Determines How CO2 and CH4 Exchange Responds to Changes in Temperature and Precipitation. United States. https://doi.org/10.1002/2017JG004037
Grant, R. F., Mekonnen, Z. A., Riley, W. J., Arora, B., and Torn, M. S. Fri .
"Mathematical Modelling of Arctic Polygonal Tundra with Ecosys: 2. Microtopography Determines How CO2 and CH4 Exchange Responds to Changes in Temperature and Precipitation". United States. https://doi.org/10.1002/2017JG004037. https://www.osti.gov/servlets/purl/1433102.
@article{osti_1433102,
title = {Mathematical Modelling of Arctic Polygonal Tundra with Ecosys: 2. Microtopography Determines How CO2 and CH4 Exchange Responds to Changes in Temperature and Precipitation},
author = {Grant, R. F. and Mekonnen, Z. A. and Riley, W. J. and Arora, B. and Torn, M. S.},
abstractNote = {Abstract Differences of surface elevation in arctic polygonal landforms cause spatial variation in soil water contents ( θ ), active layer depths (ALD), and thereby in CO 2 and CH 4 exchange. Here we test hypotheses in ecosys for topographic controls on CO 2 and CH 4 exchange in trough, rim, and center features of low‐ and flat‐centered polygons (LCP and FCP) against chamber and eddy covariance (EC) measurements during 2013 at Barrow, Alaska. Larger CO 2 influxes and CH 4 effluxes were measured with chambers and modeled with ecosys in LCPs than in FCPs and in lower features (troughs) than in higher (rims) within LCPs and FCPs. Spatially aggregated CO 2 and CH 4 fluxes from ecosys were significantly correlated with EC flux measurements. Lower features were modeled as C sinks (52–56 g C m −2 yr −1 ) and CH 4 sources (4–6 g C m −2 yr −1 ), and higher features as near C neutral (−2–15 g C m −2 yr −1 ) and CH 4 neutral (0.0–0.1 g C m −2 yr −1 ). Much of the spatial and temporal variations in CO 2 and CH 4 fluxes were modeled from topographic effects on water and snow movement and thereby on θ , ALD, and soil O 2 concentrations. Model results forced with meteorological data from 1981 to 2015 indicated increasing net primary productivity in higher features and CH 4 emissions in some lower and higher features since 2008, attributed mostly to recent rises in precipitation. Small‐scale variation in surface elevation causes large spatial variation of greenhouse gas (GHG) exchanges and therefore should be considered in estimates of GHG exchange in polygonal landscapes.},
doi = {10.1002/2017JG004037},
journal = {Journal of Geophysical Research. Biogeosciences},
number = 12,
volume = 122,
place = {United States},
year = {Fri Nov 17 00:00:00 EST 2017},
month = {Fri Nov 17 00:00:00 EST 2017}
}
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Works referenced in this record:
Methane efflux from boreal wetlands: Theory and testing of the ecosystem model Ecosys with chamber and tower flux measurements: METHANE EFFLUX FROM BOREAL WETLANDS
journal, October 2002
- Grant, R. F.; Roulet, N. T.
- Global Biogeochemical Cycles, Vol. 16, Issue 4
Methane exchange in a poorly-drained black spruce forest over permafrost observed using the eddy covariance technique
journal, December 2015
- Iwata, Hiroki; Harazono, Yoshinobu; Ueyama, Masahito
- Agricultural and Forest Meteorology, Vol. 214-215
The transition zones (ecotone) between boreal forests and peatlands: Ecological controls on ecosystem productivity along a transition zone between upland black spruce forest and a poor forested fen in central Saskatchewan
journal, November 2014
- Dimitrov, Dimitre D.; Bhatti, Jagtar S.; Grant, Robert F.
- Ecological Modelling, Vol. 291
Modeling the spatiotemporal variability in subsurface thermal regimes across a low-relief polygonal tundra landscape
journal, January 2016
- Kumar, Jitendra; Collier, Nathan; Bisht, Gautam
- The Cryosphere, Vol. 10, Issue 5
Modeling stomatal and nonstomatal effects of water deficits on CO 2 fixation in a semiarid grassland : MODELING WATER DEFICIT EFFECTS ON CO
journal, August 2007
- Grant, R. F.; Flanagan, L. B.
- Journal of Geophysical Research: Biogeosciences, Vol. 112, Issue G3
Effects of Fine-Scale Topography on CO 2 Flux Components of Alaskan Coastal Plain Tundra: Response to Contrasting Growing Seasons
journal, May 2011
- Olivas, Paulo C.; Oberbauer, Steven F.; Tweedie, Craig
- Arctic, Antarctic, and Alpine Research, Vol. 43, Issue 2
Methane emissions from Alaska Arctic tundra: An assessment of local spatial variability
journal, January 1992
- Morrissey, L. A.; Livingston, G. P.
- Journal of Geophysical Research, Vol. 97, Issue D15
Small-scale hydrological variation determines landscape CO2 fluxes in the high Arctic
journal, June 2006
- Sjögersten, Sofie; van der Wal, René; Woodin, Sarah J.
- Biogeochemistry, Vol. 80, Issue 3
Estimating uncertainties in individual eddy covariance flux measurements: A comparison of methods and a proposed new method
journal, March 2011
- Billesbach, D. P.
- Agricultural and Forest Meteorology, Vol. 151, Issue 3
Modelling contrasting responses of wetland productivity to changes in water table depth
journal, January 2012
- Grant, R. F.; Desai, A. R.; Sulman, B. N.
- Biogeosciences, Vol. 9, Issue 11
Decadal variations of active-layer thickness in moisture-controlled landscapes, Barrow, Alaska
journal, January 2010
- Shiklomanov, Nikolay I.; Streletskiy, Dmitry A.; Nelson, Frederick E.
- Journal of Geophysical Research, Vol. 115
Geophysical estimation of shallow permafrost distribution and properties in an ice-wedge polygon-dominated Arctic tundra region
journal, January 2016
- Dafflon, Baptiste; Hubbard, Susan; Ulrich, Craig
- GEOPHYSICS, Vol. 81, Issue 1
Modelling effects of seasonal variation in water table depth on net ecosystem CO 2 exchange of a tropical peatland
journal, January 2014
- Mezbahuddin, M.; Grant, R. F.; Hirano, T.
- Biogeosciences, Vol. 11, Issue 3
Direct uptake of soil nitrogen by mosses
journal, December 2005
- Ayres, Edward; van der Wal, René; Sommerkorn, Martin
- Biology Letters, Vol. 2, Issue 2
Future increases in Arctic precipitation linked to local evaporation and sea-ice retreat
journal, May 2014
- Bintanja, R.; Selten, F. M.
- Nature, Vol. 509, Issue 7501
Micro-topographic patterns unravel controls of soil water and temperature on soil respiration in three Siberian tundra systems
journal, July 2008
- Sommerkorn, Martin
- Soil Biology and Biochemistry, Vol. 40, Issue 7
Environmental and physical controls on northern terrestrial methane emissions across permafrost zones
journal, November 2012
- Olefeldt, David; Turetsky, Merritt R.; Crill, Patrick M.
- Global Change Biology, Vol. 19, Issue 2
Isotopic insights into methane production, oxidation, and emissions in Arctic polygon tundra
journal, June 2016
- Vaughn, Lydia J. S.; Conrad, Mark E.; Bill, Markus
- Global Change Biology, Vol. 22, Issue 10
Modeling the effects of hydrology on gross primary productivity and net ecosystem productivity at Mer Bleue bog
journal, January 2011
- Dimitrov, Dimitre D.; Grant, Robert F.; Lafleur, Peter M.
- Journal of Geophysical Research, Vol. 116, Issue G4
Microtopographic controls on ecosystem functioning in the Arctic Coastal Plain
journal, January 2011
- Zona, D.; Lipson, D. A.; Zulueta, R. C.
- Journal of Geophysical Research, Vol. 116
Methane fluxes during the initiation of a large-scale water table manipulation experiment in the Alaskan Arctic tundra: WATER TABLE IMPACTS ON METHANE FLUXES
journal, May 2009
- Zona, D.; Oechel, W. C.; Kochendorfer, J.
- Global Biogeochemical Cycles, Vol. 23, Issue 2
Growing season methane emissions from a permafrost peatland of northeast China: Observations using open-path eddy covariance method
journal, March 2017
- Yu, Xueyang; Song, Changchun; Sun, Li
- Atmospheric Environment, Vol. 153
Coincident aboveground and belowground autonomous monitoring to quantify covariability in permafrost, soil, and vegetation properties in Arctic tundra: ABOVEGROUND AND BELOWGROUND CODYNAMICS
journal, June 2017
- Dafflon, Baptiste; Oktem, Rusen; Peterson, John
- Journal of Geophysical Research: Biogeosciences, Vol. 122, Issue 6
Ecosystem CO 2 and CH 4 exchange in a mixed tundra and a fen within a hydrologically diverse Arctic landscape: 2. Modeled impacts of climate change : CO
journal, July 2015
- Grant, R. F.
- Journal of Geophysical Research: Biogeosciences, Vol. 120, Issue 7
Ecosystem CO 2 and CH 4 exchange in a mixed tundra and a fen within a hydrologically diverse Arctic landscape: 1. Modeling versus measurements : CO
journal, July 2015
- Grant, R. F.; Humphreys, E. R.; Lafleur, P. M.
- Journal of Geophysical Research: Biogeosciences, Vol. 120, Issue 7
Mathematical Modelling of Arctic Polygonal Tundra with Ecosys : 1. Microtopography Determines How Active Layer Depths Respond to Changes in Temperature and Precipitation : Active Layer Depth in Polygonal Tundra
journal, December 2017
- Grant, R. F.; Mekonnen, Z. A.; Riley, W. J.
- Journal of Geophysical Research: Biogeosciences, Vol. 122, Issue 12
Carbon turnover in Alaskan tundra soils: effects of organic matter quality, temperature, moisture and fertilizer
journal, May 2006
- Shaver, Gaius R.; Giblin, A. E.; Nadelhoffer, K. J.
- Journal of Ecology, Vol. 94, Issue 4
Identifying multiscale zonation and assessing the relative importance of polygon geomorphology on carbon fluxes in an Arctic tundra ecosystem: ZONATION APPROACH IN AN ARCTIC ECOSYSTEM
journal, April 2015
- Wainwright, Haruko M.; Dafflon, Baptiste; Smith, Lydia J.
- Journal of Geophysical Research: Biogeosciences, Vol. 120, Issue 4
Works referencing / citing this record:
Pathways of ice-wedge degradation in polygonal tundra under different hydrological conditions
journal, January 2019
- Nitzbon, Jan; Langer, Moritz; Westermann, Sebastian
- The Cryosphere, Vol. 13, Issue 4
Impacts of temperature and soil characteristics on methane production and oxidation in Arctic tundra
journal, January 2018
- Zheng, Jianqiu; RoyChowdhury, Taniya; Yang, Ziming
- Biogeosciences, Vol. 15, Issue 21
21st century tundra shrubification could enhance net carbon uptake of North America Arctic tundra under an RCP8.5 climate trajectory
journal, May 2018
- Mekonnen, Zelalem A.; Riley, William J.; Grant, Robert F.
- Environmental Research Letters, Vol. 13, Issue 5
Large carbon cycle sensitivities to climate across a permafrost thaw gradient in subarctic Sweden
journal, January 2019
- Chang, Kuang-Yu; Riley, William J.; Crill, Patrick M.
- The Cryosphere, Vol. 13, Issue 2
Ground subsidence effects on simulating dynamic high-latitude surface inundation under permafrost thaw using CLM5
journal, January 2019
- Ekici, Altug; Lee, Hanna; Lawrence, David M.
- Geoscientific Model Development, Vol. 12, Issue 12
Ground subsidence effects on simulating dynamic high-latitude surface inundation under permafrost thaw using CLM5
text, January 2019
- Ekici, Altug; Lee, Hanna; Lawrence, David M.
- Copernicus Publications