Menu utilisateur

Accès à distance ? S'identifier sur le proxy UCLouvain

Legacy of human-induced C erosion and burial on soil-atmosphere C exchange

Onglets principaux

Van Oost, Kristof [UCL] Verstraeten, Gert [KULeuven, Departement of Earth and Environmental Sciences] Doetterl, Sebastian [UCL] Notebaert, Bastiaan [KULeuven, Departement of Earth and Environmental Sciences] Wiaux, François [UCL] Six, Johan [University of California (Davis), Department of Plant Sciences]

Carbon exchange associated with accelerated erosion following land cover change is an important component of the global C cycle. In current assessments, however, this component is not accounted for. Here, we integrate the effects of accelerated C erosion across point, hillslope, and catchment scale for the 780-km2 Dijle River catchment over the period 4000 B.C. to A.D. 2000 to demonstrate that accelerated erosion results in a net C sink. We found this longterm C sink to be equivalent to 43% of the eroded C and to have offset 39% (17–66%) of the C emissions due to anthropogenic land cover change since the advent of agriculture. Nevertheless, the erosion-induced C sink strength is limited by a significant loss of buried C in terrestrial depositional stores, which lagged the burial. The time lag between burial and subsequent loss at this study site implies that the C buried in eroded terrestrial deposits during the agricultural expansion of the last 150 y cannot be assumed to be inert to further destabilization, and indeed might become a significant C source. Our analysis exemplifies that accounting for the non–steady-state C dynamics in geomorphic active systems is pertinent to understanding both past and future anthropogenic global change

Type de document Article de périodique (Journal article) – Article de recherche
Type d'accès Accès restreint
Année de publication 2012
Langue Anglais
Information sur le périodique "Proceedings of the National academy of sciences of the United States of America" -
Peer reviewed oui
Editeur National academy of sciences ((United States) [S.l.])
issn 0027-8424
e-issn 1091-6490
Statut de la publication Publié
Affiliations UCL - SST/ELI/ELIC - Earth & Climate
Mots-clés soil erosion ; soil organic carbon ; geomorphic cascade ; human impact ; global carbon cycling ; 1443
Liens
  1. DeFries R. S., Field C. B., Fung I., Collatz G. J., Bounoua L., Combining satellite data and biogeochemical models to estimate global effects of human-induced land cover change on carbon emissions and primary productivity, 10.1029/1999gb900037
  2. HOUGHTON R. A., Revised estimates of the annual net flux of carbon to the atmosphere from changes in land use and land management 1850-2000, 10.1034/j.1600-0889.2003.01450.x
  3. Tellus, Series A, Dynamic Meteorology and Oceanography, 60B, 583 (2008)
  4. Kaplan Jed O., Krumhardt Kristen M., Ellis Erle C., Ruddiman William F., Lemmen Carsten, Goldewijk Kees Klein, Holocene carbon emissions as a result of anthropogenic land cover change, 10.1177/0959683610386983
  5. Stocker B. D., Strassmann K., Joos F., Sensitivity of Holocene atmospheric CO2 and the modern carbon budget to early human land use: analyses with a process-based model, 10.5194/bg-8-69-2011
  6. LAL R, Soil erosion and carbon dynamics, 10.1016/j.still.2004.09.002
  7. Montgomery D. R., Soil erosion and agricultural sustainability, 10.1073/pnas.0611508104
  8. Wilkinson B. H., McElroy B. J., The impact of humans on continental erosion and sedimentation, 10.1130/b25899.1
  9. Global Biogeochemical Cycles, 17, 1074 (2003)
  10. Jacinthe P.-A., Lal R., Kimble J.M., Carbon dioxide evolution in runoff from simulated rainfall on long-term no-till and plowed soils in southwestern Ohio, 10.1016/s0167-1987(02)00010-7
  11. Van Oost K., Quine T. A., Govers G., De Gryze S., Six J., Harden J. W., Ritchie J. C., McCarty G. W., Heckrath G., Kosmas C., Giraldez J. V., da Silva J. R. M., Merckx R., The Impact of Agricultural Soil Erosion on the Global Carbon Cycle, 10.1126/science.1145724
  12. Sundquist Eric T., Ackerman Katherine Visser, Stallard Robert F., Bliss Norman B., Historical influence of soil and water management on sediment and carbon budgets in the United States, 10.1016/j.apgeochem.2011.03.118
  13. Rumpel Cornelia, Kögel-Knabner Ingrid, Deep soil organic matter—a key but poorly understood component of terrestrial C cycle, 10.1007/s11104-010-0391-5
  14. Fontaine Sébastien, Barot Sébastien, Barré Pierre, Bdioui Nadia, Mary Bruno, Rumpel Cornelia, Stability of organic carbon in deep soil layers controlled by fresh carbon supply, 10.1038/nature06275
  15. Gregorich E.G, Greer K.J, Anderson D.W, Liang B.C, Carbon distribution and losses: erosion and deposition effects, 10.1016/s0167-1987(98)00117-2
  16. Six J., Conant R. T., Paul E. A., Paustian K., 10.1023/a:1016125726789
  17. Stewart Catherine E., Paustian Keith, Conant Richard T., Plante Alain F., Six Johan, Soil carbon saturation: concept, evidence and evaluation, 10.1007/s10533-007-9140-0
  18. Hassink Jan, Preservation of Plant Residues in Soils Differing in Unsaturated Protective Capacity, 10.2136/sssaj1996.03615995006000020021x
  19. Vitousek Peter, Chadwick Oliver, Matson Pamela, Allison Steven, Derry Louis, Kettley Lisa, Luers Amy, Mecking Esther, Monastra Valerie, Porder Stephen, Erosion and the Rejuvenation of Weathering-derived Nutrient Supply in an Old Tropical Landscape, 10.1007/s10021-003-0199-8
  20. Stallard Robert F., Terrestrial sedimentation and the carbon cycle: Coupling weathering and erosion to carbon burial, 10.1029/98gb00741
  21. Lal R, Soil erosion and the global carbon budget, 10.1016/s0160-4120(02)00192-7
  22. Aufdenkampe Anthony K, Mayorga Emilio, Raymond Peter A, Melack John M, Doney Scott C, Alin Simone R, Aalto Rolf E, Yoo Kyungsoo, Riverine coupling of biogeochemical cycles between land, oceans, and atmosphere, 10.1890/100014
  23. Soil Science Society of America Journal, 169, 590 (2004)
  24. QUINE TIMOTHY ANDREW, van OOST KRISTOF, Quantifying carbon sequestration as a result of soil erosion and deposition: retrospective assessment using caesium-137 and carbon inventories, 10.1111/j.1365-2486.2007.01457.x
  25. Trumbore S. E., Czimczik C. I., GEOLOGY: An Uncertain Future for Soil Carbon, 10.1126/science.1160232
  26. Trimble S. W., Decreased Rates of Alluvial Sediment Storage in the Coon Creek Basin, Wisconsin, 1975-93, 10.1126/science.285.5431.1244
  27. Notebaert Bastiaan, Verstraeten Gert, Vandenberghe Dimitri, Marinova Elena, Poesen Jean, Govers Gerard, Changing hillslope and fluvial Holocene sediment dynamics in a Belgian loess catchment, 10.1002/jqs.1425
  28. Hoffmann Thomas, Glatzel Stephan, Dikau Richard, A carbon storage perspective on alluvial sediment storage in the Rhine catchment, 10.1016/j.geomorph.2007.11.015
  29. Rosenbloom Nan A., Harden Jennifer W., Neff Jason C., Schimel David S., Geomorphic control of landscape carbon accumulation, 10.1029/2005jg000077
  30. Smith S. V., Sleezer R. O., Renwick W. H., Buddemeier R. W., FATES OF ERODED SOIL ORGANIC CARBON: MISSISSIPPI BASIN CASE STUDY, 10.1890/05-0073
  31. Nadeu E., Berhe A. A., de Vente J., Boix-Fayos C., Erosion, deposition and replacement of soil organic carbon in Mediterranean catchments: a geomorphological, isotopic and land use change approach, 10.5194/bg-9-1099-2012
  32. J GEOPHYS RES, 117, 02019G (2012)
  33. Doetterl Sebastian, Six Johan, Van Wesemael Bas, Van Oost Kristof, Carbon cycling in eroding landscapes: geomorphic controls on soil organic C pool composition and C stabilization, 10.1111/j.1365-2486.2012.02680.x
  34. Pedologie, 38, 191 (1988)
Référence bibliographique Van Oost, Kristof ; Verstraeten, Gert ; Doetterl, Sebastian ; Notebaert, Bastiaan ; Wiaux, François ; et. al. Legacy of human-induced C erosion and burial on soil-atmosphere C exchange. In: Proceedings of the National academy of sciences of the United States of America,
Permalien http://hdl.handle.net/2078.1/116751