Influence of iron redox cycling on organo-mineral associations in Arctic tundra soil
Abstract
Arctic tundra stores large quantities of soil organic matter under varying redox conditions. As the climate warms, these carbon reservoirs are susceptible to increased rates of decomposition and release to the atmosphere as the greenhouse gases carbon dioxide (CO2) and methane (CH4). Geochemical interactions between soil organic matter and minerals influence decomposition in many environments but remain poorly understood in Arctic tundra systems and are not considered in decomposition models. The accumulation of iron (Fe) oxyhydroxides and organo- iron precipitates at redox interfaces may be particularly important for carbon cycling given that ferric iron [Fe(III)] species can enhance decomposition by serving as terminal electron acceptors in anoxic soils or inhibit microbial decomposition by binding organic molecules. Here in this paper, we examine chemical properties of solid-phase Fe and organic matter in organic and mineral horizons within the seasonally thawed active layer of Arctic tundra on the North Slope of Alaska. Spectroscopic techniques, including micro-X-ray fluorescence ( XRF) mapping, micro-X-ray absorption near-edge structure ( XANES) spectroscopy, and Fourier transform infrared spectroscopy (FTIR), were coupled with chemical sequential extractions and physical density fractionations to evaluate the spatial distribution and speciation of Fe-bearing phases and associated organic matter in soils. Organic horizons weremore »
- Authors:
-
- Kent State Univ., Kent, OH (United States). Dept. of Geology
- (ORNL), Oak Ridge, TN (United States). Environmental Sciences Division
- (United States). Dept. of Geology
- Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States). Biosciences Division
- Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States). Environmental Sciences Division
- Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States). Biosciences Divisio
- Publication Date:
- Research Org.:
- Oak Ridge National Laboratory (ORNL), Oak Ridge, TN (United States)
- Sponsoring Org.:
- USDOE Office of Science (SC), Biological and Environmental Research (BER); National Science Foundation (NSF)
- OSTI Identifier:
- 1356942
- Alternate Identifier(s):
- OSTI ID: 1398654
- Grant/Contract Number:
- AC05-00OR22725; AC02-06CH11357; FG02-94ER14466; DBI-1263263
- Resource Type:
- Accepted Manuscript
- Journal Name:
- Geochimica et Cosmochimica Acta
- Additional Journal Information:
- Journal Volume: 207; Journal Issue: C; Journal ID: ISSN 0016-7037
- Publisher:
- The Geochemical Society; The Meteoritical Society
- Country of Publication:
- United States
- Language:
- English
- Subject:
- 54 ENVIRONMENTAL SCIENCES; 59 BASIC BIOLOGICAL SCIENCES; Iron; Soil organic matter; Arctic; Tundra
Citation Formats
Herndon, Elizabeth, Oak Ridge National Lab., AlBashaireh, Amineh, College of Wooster, OH, Singer, David, Chowdhury, Taniya Roy, Gu, Baohua, and Graham, David. Influence of iron redox cycling on organo-mineral associations in Arctic tundra soil. United States: N. p., 2017.
Web. doi:10.1016/j.gca.2017.02.034.
Herndon, Elizabeth, Oak Ridge National Lab., AlBashaireh, Amineh, College of Wooster, OH, Singer, David, Chowdhury, Taniya Roy, Gu, Baohua, & Graham, David. Influence of iron redox cycling on organo-mineral associations in Arctic tundra soil. United States. https://doi.org/10.1016/j.gca.2017.02.034
Herndon, Elizabeth, Oak Ridge National Lab., AlBashaireh, Amineh, College of Wooster, OH, Singer, David, Chowdhury, Taniya Roy, Gu, Baohua, and Graham, David. Sat .
"Influence of iron redox cycling on organo-mineral associations in Arctic tundra soil". United States. https://doi.org/10.1016/j.gca.2017.02.034. https://www.osti.gov/servlets/purl/1356942.
@article{osti_1356942,
title = {Influence of iron redox cycling on organo-mineral associations in Arctic tundra soil},
author = {Herndon, Elizabeth and Oak Ridge National Lab. and AlBashaireh, Amineh and College of Wooster, OH and Singer, David and Chowdhury, Taniya Roy and Gu, Baohua and Graham, David},
abstractNote = {Arctic tundra stores large quantities of soil organic matter under varying redox conditions. As the climate warms, these carbon reservoirs are susceptible to increased rates of decomposition and release to the atmosphere as the greenhouse gases carbon dioxide (CO2) and methane (CH4). Geochemical interactions between soil organic matter and minerals influence decomposition in many environments but remain poorly understood in Arctic tundra systems and are not considered in decomposition models. The accumulation of iron (Fe) oxyhydroxides and organo- iron precipitates at redox interfaces may be particularly important for carbon cycling given that ferric iron [Fe(III)] species can enhance decomposition by serving as terminal electron acceptors in anoxic soils or inhibit microbial decomposition by binding organic molecules. Here in this paper, we examine chemical properties of solid-phase Fe and organic matter in organic and mineral horizons within the seasonally thawed active layer of Arctic tundra on the North Slope of Alaska. Spectroscopic techniques, including micro-X-ray fluorescence ( XRF) mapping, micro-X-ray absorption near-edge structure ( XANES) spectroscopy, and Fourier transform infrared spectroscopy (FTIR), were coupled with chemical sequential extractions and physical density fractionations to evaluate the spatial distribution and speciation of Fe-bearing phases and associated organic matter in soils. Organic horizons were enriched in poorly crystalline and crystalline iron oxides, and approximately 60% of total Fe stored in organic horizons was calculated to derive from upward translocation from anoxic mineral horizons. Ferrihydrite and goethite were present as coatings on mineral grains and plant debris, and in aggregates with clays and particulate organic matter. Minor amounts of ferrous iron [Fe(II)] were present in iron sulfides (i.e., pyrite and greigite) in mineral horizon soils and iron phosphates (vivianite) in organic horizons. Concentrations of organic carbon in the organic horizons (28 ± 5% wt. % C) were approximately twice the concentrations in the mineral horizons (14 ± 2 % wt. C), and organic matter was dominated by base-extractable and insoluble organics enriched in aromatic and aliphatic moieties. Conversely, water-soluble organic molecules and organics solubilized through acid-dissolution of iron oxides comprised < 2% of soil organic C and were consistent with a mixture of alcohols, sugars, and small molecular weight organic acids and aromatics released through decomposition of larger molecules. Integrated over the entire depth of the active layer, soils contained 11± 4 kg m-2 low- density, particulate organic C and 19 ± 6 kg m-2 high-density, mineral-associated organic C, indicating that 63 ±19% of organic C in the active layer was associated with the mineral fraction. We conclude that organic horizons were enriched in poorly crystalline and crystalline iron oxide phases derived from upward translocation of dissolved Fe(II) and Fe(III) from mineral horizons. Precipitation of iron oxides at the redox interface has the potential to contribute to mineral protection of organic matter and increase the residence time of organic carbon in arctic soils. Our results suggest that iron oxides may inhibit organic carbon degradation by binding low-molecular-weight organic compounds, stabilizing soil aggregates, and forming thick coatings around particulate organic matter. Organic matter released through acid-dissolution of iron oxides could represent a small pool of readily-degradable organic molecules temporarily stabilized by sorption to iron oxyhydroxide surfaces. The distribution of iron in organic complexes and inorganic phases throughout the soil column constrains Fe(III) availability to anaerobic iron-reducing microorganisms that oxidize organic matter to produce CO2 and CH4 in these anoxic environments. Future predictions of carbon storage and respiration in the arctic tundra should consider such influences of mineral stabilization under changing redox conditions.},
doi = {10.1016/j.gca.2017.02.034},
journal = {Geochimica et Cosmochimica Acta},
number = C,
volume = 207,
place = {United States},
year = {Sat Mar 25 00:00:00 EDT 2017},
month = {Sat Mar 25 00:00:00 EDT 2017}
}
Web of Science
Works referenced in this record:
Coordination chemistry and hydrolysis of Fe(III) in a peat humic acid studied by X-ray absorption spectroscopy
journal, January 2010
- Karlsson, Torbjörn; Persson, Per
- Geochimica et Cosmochimica Acta, Vol. 74, Issue 1
AN EVALUATION OF 0.1 M PYROPHOSPHATE AND PYROPHOSPHATE-DITHIONITE IN COMPARISON WITH OXALATE AS EXTRACTANTS OF THE ACCUMULATION PRODUCTS IN PODZOLS AND SOME OTHER SOILS
journal, June 1967
- McKeague, J. A.
- Canadian Journal of Soil Science, Vol. 47, Issue 2
Sodium hypochlorite oxidation reduces soil organic matter concentrations without affecting inorganic soil constituents
journal, August 2005
- Siregar, A.; Kleber, M.; Mikutta, R.
- European Journal of Soil Science, Vol. 56, Issue 4
Preservation of organic matter in sediments promoted by iron
journal, March 2012
- Lalonde, Karine; Mucci, Alfonso; Ouellet, Alexandre
- Nature, Vol. 483, Issue 7388
Composition and structural aspects of naturally occurring ferrihydrite
journal, February 2011
- Cismasu, A. Cristina; Michel, F. Marc; Tcaciuc, A. Patricia
- Comptes Rendus Geoscience, Vol. 343, Issue 2-3
Vivianite Precipitation and Phosphate Sorption following Iron Reduction in Anoxic Soils
journal, January 2012
- Heiberg, Lisa; Koch, Christian Bender; Kjaergaard, Charlotte
- Journal of Environment Quality, Vol. 41, Issue 3
Shrinking thermokarst ponds and groundwater dynamics in discontinuous permafrost near council, Alaska
journal, January 2003
- Yoshikawa, Kenji; Hinzman, Larry D.
- Permafrost and Periglacial Processes, Vol. 14, Issue 2
Conductive iron oxide minerals accelerate syntrophic cooperation in methanogenic benzoate degradation
journal, August 2015
- Zhuang, Li; Tang, Jia; Wang, Yueqiang
- Journal of Hazardous Materials, Vol. 293
Methanogenesis facilitated by electric syntrophy via (semi)conductive iron-oxide minerals: Methanogenesis via (semi)conductive minerals
journal, October 2011
- Kato, Souichiro; Hashimoto, Kazuhito; Watanabe, Kazuya
- Environmental Microbiology, Vol. 14, Issue 7
Organic and organo-mineral colloids in discontinuous permafrost zone
journal, September 2016
- Pokrovsky, Oleg S.; Manasypov, Rinat M.; Loiko, Sergey V.
- Geochimica et Cosmochimica Acta, Vol. 188
Geochemical Influences on Solubility of Soil Organic Carbon in Arctic Tundra Ecosystems
journal, January 2013
- Hobara, Satoru; Koba, Keisuke; Ae, Noriharu
- Soil Science Society of America Journal, Vol. 77, Issue 2
Predicting Carbon Storage in Tundra Soils of Arctic Alaska
journal, May 2003
- Bockheim, J. G.; Hinkel, K. M.; Nelson, F. E.
- Soil Science Society of America Journal, Vol. 67, Issue 3
Does vivianite control phosphate solubility in anoxic meadow soils?
journal, February 2013
- Walpersdorf, E.; Koch, C. Bender; Heiberg, L.
- Geoderma, Vol. 193-194
Microbial Iron Oxidation in the Arctic Tundra and Its Implications for Biogeochemical Cycling
journal, September 2015
- Emerson, David; Scott, Jarrod J.; Benes, Joshua
- Applied and Environmental Microbiology, Vol. 81, Issue 23
Element Redistribution along Hydraulic and Redox Gradients of Low-Centered Polygons, Lena Delta, Northern Siberia
journal, January 2004
- Fiedler, S.; Wagner, D.; Kutzbach, L.
- Soil Science Society of America Journal, Vol. 68, Issue 3
Sorptive stabilization of organic matter in soils by hydrous iron oxides
journal, January 2007
- Wagai, Rota; Mayer, Lawrence M.
- Geochimica et Cosmochimica Acta, Vol. 71, Issue 1
Effects of organic ligands on granite dissolution in batch experiments at pH 6
journal, June 2006
- Neaman, A.; Chorover, J.; Brantley, S. L.
- American Journal of Science, Vol. 306, Issue 6
Iron speciation in soils and soil aggregates by synchrotron-based X-ray microspectroscopy (XANES, ?-XANES)
journal, October 2007
- Prietzel, J.; Thieme, J.; Eusterhues, K.
- European Journal of Soil Science, Vol. 58, Issue 5
The effect of permafrost thaw on old carbon release and net carbon exchange from tundra
journal, May 2009
- Schuur, Edward A. G.; Vogel, Jason G.; Crummer, Kathryn G.
- Nature, Vol. 459, Issue 7246
Pathways of anaerobic organic matter decomposition in tundra soils from Barrow, Alaska: BIOGEOCHEMISTRY OF ANOXIC ARCTIC TUNDRA
journal, November 2015
- Herndon, Elizabeth M.; Mann, Benjamin F.; Roy Chowdhury, Taniya
- Journal of Geophysical Research: Biogeosciences, Vol. 120, Issue 11
Development of a sequential extraction procedure for iron: implications for iron partitioning in continentally derived particulates
journal, January 2005
- Poulton, Simon W.; Canfield, Donald E.
- Chemical Geology, Vol. 214, Issue 3-4
Sequential extraction procedure for the speciation of particulate trace metals
journal, June 1979
- Tessier, A.; Campbell, P. G. C.; Bisson, M.
- Analytical Chemistry, Vol. 51, Issue 7
Reaction of forest floor organic matter at goethite, birnessite and smectite surfaces
journal, January 2001
- Chorover, Jon; Amistadi, Mary Kay
- Geochimica et Cosmochimica Acta, Vol. 65, Issue 1
Influence of organic matter on phosphate adsorption by aluminium and iron oxides in sandy soils
journal, September 1990
- Borggaard, O. K.; Jdrgensen, S. S.; Moberg, J. P.
- Journal of Soil Science, Vol. 41, Issue 3
Tundra carbon balance under varying temperature and moisture regimes
journal, January 2010
- Huemmrich, K. F.; Kinoshita, G.; Gamon, J. A.
- Journal of Geophysical Research, Vol. 115
Estimated stocks of circumpolar permafrost carbon with quantified uncertainty ranges and identified data gaps
journal, January 2014
- Hugelius, G.; Strauss, J.; Zubrzycki, S.
- Biogeosciences, Vol. 11, Issue 23
Methane suppression by iron and humic acids in soils of the Arctic Coastal Plain
journal, April 2015
- Miller, Kimberley E.; Lai, Chun-Ta; Friedman, Elliot S.
- Soil Biology and Biochemistry, Vol. 83
Interactions between mineral phases in the preservation of soil organic matter
journal, September 2006
- Wiseman, C. L. S.; Püttmann, W.
- Geoderma, Vol. 134, Issue 1-2
Abrupt increase in permafrost degradation in Arctic Alaska
journal, January 2006
- Jorgenson, M. Torre; Shur, Yuri L.; Pullman, Erik R.
- Geophysical Research Letters, Vol. 33, Issue 2
Geochemical drivers of organic matter decomposition in arctic tundra soils
journal, December 2015
- Herndon, Elizabeth M.; Yang, Ziming; Bargar, John
- Biogeochemistry, Vol. 126, Issue 3
Water-table height and microtopography control biogeochemical cycling in an Arctic coastal tundra ecosystem
journal, January 2012
- Lipson, D. A.; Zona, D.; Raab, T. K.
- Biogeosciences, Vol. 9, Issue 1
XAS study of iron speciation in soils and waters from a boreal catchment
journal, January 2014
- Sundman, Anneli; Karlsson, Torbjörn; Laudon, Hjalmar
- Chemical Geology, Vol. 364
Quantifying and relating land-surface and subsurface variability in permafrost environments using LiDAR and surface geophysical datasets
journal, December 2012
- Hubbard, S. S.; Gangodagamage, C.; Dafflon, B.
- Hydrogeology Journal, Vol. 21, Issue 1
Effects of warming on the degradation and production of low-molecular-weight labile organic carbon in an Arctic tundra soil
journal, April 2016
- Yang, Ziming; Wullschleger, Stan D.; Liang, Liyuan
- Soil Biology and Biochemistry, Vol. 95
Mineral–Organic Associations: Formation, Properties, and Relevance in Soil Environments
book, December 2014
- Kleber, Markus; Eusterhues, Karin; Keiluweit, Marco
Reviews and syntheses: Effects of permafrost thaw on Arctic aquatic ecosystems
journal, January 2015
- Vonk, J. E.; Tank, S. E.; Bowden, W. B.
- Biogeosciences, Vol. 12, Issue 23
Organo-mineral associations in temperate soils: Integrating biology, mineralogy, and organic matter chemistry
journal, February 2008
- Kögel-Knabner, Ingrid; Guggenberger, Georg; Kleber, Markus
- Journal of Plant Nutrition and Soil Science, Vol. 171, Issue 1
Organic carbon oxidation and suppression of methane production by microbial Fe(III) oxide reduction in vegetated and unvegetated freshwater wetland sediments
journal, December 1996
- Roden, Eric E.; Wetzel, Robert G.
- Limnology and Oceanography, Vol. 41, Issue 8
Bioavailability of water extractable organic carbon fractions in forest and agricultural soil profiles
journal, June 1996
- Boyer, J. N.; Groffman, P. M.
- Soil Biology and Biochemistry, Vol. 28, Issue 6
Extreme iron isotope fractionation between colloids and particles of boreal and temperate organic-rich waters
journal, January 2013
- Ilina, Svetlana M.; Poitrasson, Franck; Lapitskiy, Sergey A.
- Geochimica et Cosmochimica Acta, Vol. 101
Vivianite is a key sink for phosphorus in sediments of the Landsort Deep, an intermittently anoxic deep basin in the Baltic Sea
journal, November 2016
- Dijkstra, Nikki; Slomp, Caroline P.; Behrends, Thilo
- Chemical Geology, Vol. 438
Structural environments of carboxyl groups in natural organic molecules from terrestrial systems. Part 1: Infrared spectroscopy
journal, July 2007
- Hay, Michael B.; Myneni, Satish C. B.
- Geochimica et Cosmochimica Acta, Vol. 71, Issue 14
The nature of an iron oxide—organic iron association in a peaty environment
journal, September 1988
- Schwertmann, U.; Murad, E.
- Clay Minerals, Vol. 23, Issue 3
Phosphate mobilization in iron-rich anaerobic sediments: microbial Fe (III) oxide reduction versus iron-sulfide formation [Phosphate mobilization in iron-rich anaerobic sediments: microbial Fe (III) oxide reduction versus iron-sulfide formation]
journal, June 1997
- Roden, Eric E.; Edmonds, Jennifer W.
- Archiv für Hydrobiologie, Vol. 139, Issue 3
Adsorption and desorption of natural organic matter on iron oxide: mechanisms and models
journal, January 1994
- Gu, Baohua.; Schmitt, Juergen.; Chen, Zhihong.
- Environmental Science & Technology, Vol. 28, Issue 1
Characterization of Iron(III) in Organic Soils Using Extended X-ray Absorption Fine Structure Spectroscopy
journal, August 2008
- Karlsson, Torbjörn; Persson, Per; Skyllberg, Ulf
- Environmental Science & Technology, Vol. 42, Issue 15
Stabilization of organic matter in temperate soils: mechanisms and their relevance under different soil conditions - a review
journal, August 2006
- Lutzow, M. v.; Kogel-Knabner, I.; Ekschmitt, K.
- European Journal of Soil Science, Vol. 57, Issue 4
Soil organic carbon pools in the northern circumpolar permafrost region: SOIL ORGANIC CARBON POOLS
journal, June 2009
- Tarnocai, C.; Canadell, J. G.; Schuur, E. A. G.
- Global Biogeochemical Cycles, Vol. 23, Issue 2
Unbuffered and Buffered Salt Methods for Exchangeable Cations and Effective Cation-Exchange Capacity
journal, January 1990
- Amacher, M. C.; Henderson, R. E.; Breithaupt, M. D.
- Soil Science Society of America Journal, Vol. 54, Issue 4
ATHENA , ARTEMIS , HEPHAESTUS : data analysis for X-ray absorption spectroscopy using IFEFFIT
journal, June 2005
- Ravel, B.; Newville, M.
- Journal of Synchrotron Radiation, Vol. 12, Issue 4
Stoichiometry and temperature sensitivity of methanogenesis and CO 2 production from saturated polygonal tundra in Barrow, Alaska
journal, November 2014
- Roy Chowdhury, Taniya; Herndon, Elizabeth M.; Phelps, Tommy J.
- Global Change Biology, Vol. 21, Issue 2
Spatial and temporal patterns of water-extractable organic carbon (WEOC) of surface mineral soil in a cool temperate forest ecosystem
journal, November 2004
- Hishi, Takuo; Hirobe, Muneto; Tateno, Ryunosuke
- Soil Biology and Biochemistry, Vol. 36, Issue 11
Anaerobic production of magnetite by a dissimilatory iron-reducing microorganism
journal, November 1987
- Lovley, Derek R.; Stolz, John F.; Nord, Gordon L.
- Nature, Vol. 330, Issue 6145
Iron Isotope Fractionation during Proton-Promoted, Ligand-Controlled, and Reductive Dissolution of Goethite
journal, June 2006
- Wiederhold, Jan G.; Kraemer, Stephan M.; Teutsch, Nadya
- Environmental Science & Technology, Vol. 40, Issue 12
Dissimilatory Fe(III) and Mn(IV) reduction
journal, June 1991
- Lovley, D. R.
- Microbiological Reviews, Vol. 55, Issue 2
Adsorption and desorption of different organic matter fractions on iron oxide
journal, January 1995
- Gu, Baohua; Schmitt, Jürgen; Chen, Zhihong
- Geochimica et Cosmochimica Acta, Vol. 59, Issue 2
A comparison of methods for determining proximate carbon fractions of forest litter
journal, February 1990
- Ryan, Michael G.; Melillo, Jerry M.; Ricca, Andrea
- Canadian Journal of Forest Research, Vol. 20, Issue 2
Iron-oxide crystallinity increases during soil redox oscillations
journal, April 2006
- Thompson, Aaron; Chadwick, Oliver A.; Rancourt, Denis G.
- Geochimica et Cosmochimica Acta, Vol. 70, Issue 7
Influence of humic acid imposed changes of ferrihydrite aggregation on microbial Fe(III) reduction
journal, May 2012
- Amstaetter, Katja; Borch, Thomas; Kappler, Andreas
- Geochimica et Cosmochimica Acta, Vol. 85
Large amounts of labile organic carbon in permafrost soils of northern Alaska
journal, March 2015
- Mueller, Carsten W.; Rethemeyer, Janet; Kao-Kniffin, Jenny
- Global Change Biology, Vol. 21, Issue 7
Dark Formation of Hydroxyl Radical in Arctic Soil and Surface Waters
journal, October 2013
- Page, Sarah E.; Kling, George W.; Sander, Michael
- Environmental Science & Technology, Vol. 47, Issue 22
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
Density fractionation of forest soils: methodological questions and interpretation of incubation results and turnover time in an ecosystem context
journal, March 2007
- Crow, Susan E.; Swanston, Christopher W.; Lajtha, Kate
- Biogeochemistry, Vol. 85, Issue 1
Trajectory of the Arctic as an integrated system
journal, December 2013
- Hinzman, Larry D.; Deal, Clara J.; McGuire, A. David
- Ecological Applications, Vol. 23, Issue 8
Microtopographic and depth controls on active layer chemistry in Arctic polygonal ground: Polygonal Ground Chemistry
journal, March 2015
- Newman, B. D.; Throckmorton, H. M.; Graham, D. E.
- Geophysical Research Letters, Vol. 42, Issue 6
Iron oxidation stimulates organic matter decomposition in humid tropical forest soils
journal, July 2013
- Hall, Steven J.; Silver, Whendee L.
- Global Change Biology, Vol. 19, Issue 9
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
Long-term CO2 production following permafrost thaw
journal, July 2013
- Elberling, Bo; Michelsen, Anders; Schädel, Christina
- Nature Climate Change, Vol. 3, Issue 10
Molecular Fractionation of Dissolved Organic Matter with Metal Salts
journal, March 2012
- Riedel, Thomas; Biester, Harald; Dittmar, Thorsten
- Environmental Science & Technology, Vol. 46, Issue 8
Carbon K-Edge NEXAFS and FTIR-ATR Spectroscopic Investigation of Organic Carbon Speciation in Soils
journal, January 2005
- Solomon, Dawit; Lehmann, Johannes; Kinyangi, James
- Soil Science Society of America Journal, Vol. 69, Issue 1
Temperature sensitivity of soil carbon decomposition and feedbacks to climate change
journal, March 2006
- Davidson, Eric A.; Janssens, Ivan A.
- Nature, Vol. 440, Issue 7081
Dissolved organic matter sorption on sub soils and minerals studied by 13C-NMR and DRIFT spectroscopy
journal, June 1997
- Kaiser, K.; Guggenberger, G.; Haumaier, L.
- European Journal of Soil Science, Vol. 48, Issue 2
Iron and Carbon Dynamics during Aging and Reductive Transformation of Biogenic Ferrihydrite
journal, December 2015
- Cismasu, A. Cristina; Williams, Kenneth H.; Nico, Peter S.
- Environmental Science & Technology, Vol. 50, Issue 1
Potential carbon emissions dominated by carbon dioxide from thawed permafrost soils
journal, June 2016
- Schädel, Christina; Bader, Martin K. -F.; Schuur, Edward A. G.
- Nature Climate Change, Vol. 6, Issue 10
The contentious nature of soil organic matter
journal, November 2015
- Lehmann, Johannes; Kleber, Markus
- Nature, Vol. 528, Issue 7580
Biogeochemical Redox Processes and their Impact on Contaminant Dynamics
journal, January 2010
- Borch, Thomas; Kretzschmar, Ruben; Kappler, Andreas
- Environmental Science & Technology, Vol. 44, Issue 1
Soils of the Barrow region, Alaska 1
journal, July 2001
- Bockheim, J. G.; Hinkel, K. M.; Nelson, F. E.
- Polar Geography, Vol. 25, Issue 3
Constitutive mass balance relations between chemical composition, volume, density, porosity, and strain in metasomatic hydrochemical systems: Results on weathering and pedogenesis
journal, March 1987
- Brimhall, George H.; Dietrich, William E.
- Geochimica et Cosmochimica Acta, Vol. 51, Issue 3
The contribution of Fe(III) and humic acid reduction to ecosystem respiration in drained thaw lake basins of the Arctic Coastal Plain: Fe(III) AND HA REDUCTION IN THE ARCTIC
journal, May 2013
- Lipson, David A.; Raab, Theodore K.; Goria, Dominic
- Global Biogeochemical Cycles, Vol. 27, Issue 2
Organic Matter Mineralization with Reduction of Ferric Iron in Anaerobic Sediments
journal, January 1986
- Lovley, Derek R.; Phillips, Elizabeth J. P.
- Applied and Environmental Microbiology, Vol. 51, Issue 4
The occurrence, identification and environmental relevance of vivianite in waterlogged soils and aquatic sediments
journal, July 2016
- Rothe, Matthias; Kleeberg, Andreas; Hupfer, Michael
- Earth-Science Reviews, Vol. 158
Phosphorus Retention at the Redox Interface of Peatlands Adjacent to Surface Waters in Northeast Germany
journal, September 2004
- Zak, D.; Gelbrecht, J.; Steinberg, C. E. W.
- Biogeochemistry, Vol. 70, Issue 3
Evidence for warming and thawing of discontinuous permafrost in Alaska
journal, January 1999
- Osterkamp, T. E.; Romanovsky, V. E.
- Permafrost and Periglacial Processes, Vol. 10, Issue 1
Microscale soil structures foster organic matter stabilization in permafrost soils
journal, May 2017
- Mueller, Carsten W.; Hoeschen, Carmen; Steffens, Markus
- Geoderma, Vol. 293
Iron colloids/organic matter associated transport of major and trace elements in small boreal rivers and their estuaries (NW Russia)
journal, October 2002
- Pokrovsky, O. S.; Schott, J.
- Chemical Geology, Vol. 190, Issue 1-4
C-1s NEXAFS Spectroscopy Reveals Chemical Fractionation of Humic Acid by Cation-Induced Coagulation
journal, March 2007
- Christl, Iso; Kretzschmar, Ruben
- Environmental Science & Technology, Vol. 41, Issue 6
A critical review of the conventional SOC to SOM conversion factor
journal, May 2010
- Pribyl, Douglas W.
- Geoderma, Vol. 156, Issue 3-4
Iron-Oxidizing Bacteria Are Associated with Ferric Hydroxide Precipitates (Fe-Plaque) on the Roots of Wetland Plants
journal, June 1999
- Emerson, David; Weiss, Johanna V.; Megonigal, J. Patrick
- Applied and Environmental Microbiology, Vol. 65, Issue 6
Ocean productivity before about 1.9 Gyr ago limited by phosphorus adsorption onto iron oxides
journal, May 2002
- Bjerrum, Christian J.; Canfield, Donald E.
- Nature, Vol. 417, Issue 6885
High resolution x‐ray absorption spectroscopy with absolute energy calibration for the determination of absorption edge energies
journal, March 1996
- Kraft, S.; Stümpel, J.; Becker, P.
- Review of Scientific Instruments, Vol. 67, Issue 3
Microorganisms pumping iron: anaerobic microbial iron oxidation and reduction
journal, October 2006
- Weber, Karrie A.; Achenbach, Laurie A.; Coates, John D.
- Nature Reviews Microbiology, Vol. 4, Issue 10, p. 752-764
Trace element fractionation and transport in boreal rivers and soil porewaters of permafrost-dominated basaltic terrain in Central Siberia
journal, July 2006
- Pokrovsky, O. S.; Schott, J.; Dupré, B.
- Geochimica et Cosmochimica Acta, Vol. 70, Issue 13
Complexation of iron(II) by organic matter and its effect on iron(II) oxygenation
journal, June 1974
- Theis, Thomas L.; Singer, Philip C.
- Environmental Science & Technology, Vol. 8, Issue 6
Characterization of Fe Plaque and Associated Metals on the Roots of Mine-Waste Impacted Aquatic Plants
journal, October 2001
- Hansel, Colleen M.; Fendorf, Scott; Sutton, Steve
- Environmental Science & Technology, Vol. 35, Issue 19
Iron:phosphorus ratio in surface sediment as an indicator of phosphate release from aerobic sediments in shallow lakes
journal, July 1992
- Jensen, H. S.; Kristensen, P.; Jeppesen, E.
- Hydrobiologia, Vol. 235-236, Issue 1
Water-extractable soil carbon in relation to the belowground carbon cycle
journal, August 1997
- Jandl, R.; Sollins, P.
- Biology and Fertility of Soils, Vol. 25, Issue 2
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