[en] Crop management exerts a strong influence on the soil carbon (C) balance. This study investigated a long-term experiment initiated in 1959 at a site in the Hesbaye region of Belgium and focused on three contrasted treatments: residue export (RE), farmyard manure (FYM) addition and residue restitution (RR) after harvest. The objectives were to quantify the components of the C budget of croplands from a 50-year perspective and to identify the impact of the treatments on this budget and soil C sequestration, given the relatively low levels of esidue application. The soil C budget was calculated for each treatment on the basis of total soil organic C (SOC) content measurements and C input data collected since the experiment
had begun and drawn from the literature. To evaluate the robustness of this approach, the budget-based output estimates were compared with annual heterotrophic respiration (HR) averages extrapolated from seasonal field HR measurements carried out at the same experimental site in 2010. The soil C budgetbased output estimates accorded well with field-based HR measurements and with most HR estimates in the literature, suggesting that, despite the many uncertainties affecting the soil C budget, these results were robust. The three treatments investigated in this study had different impacts on SOC stocks, mainly during the first 20 years of the experiment. RE and FYM caused significant SOC decreases (on average,
−7 ± 5 g C m−2 year−1 over the 50 years) and increases (10 ± 5 g C m−2 year−1), espectively, whereas RR had no significant impact on the SOC stocks. The study also showed (i) the very large part (about twothirds of the total input) that represented the below-ground input, weeds and other left-over residues in the C budget, (ii) the important role probably played by residue quality in C sequestration and (iii) the large proportion of C lost annually rom the soil (which represents 93–98, 100 and 102–107% of the amounts of fresh residue rought to the soil each year in the FYM, RR and RE treatments, respectively).
Aubinet M., Moureaux C., Bodson B., Dufranne D., Heinesch B., Suleau M., Vancutsem F., Vilret A. Carbon sequestration by a crop over a 4-year sugar beet/winter wheat/seed potato/winter wheat rotation cycle. Agric. Forest Meteorol. 2009, 149:407-418.
Barré P., Eglin T., Christensen B.T., Ciais P., Houot S., Kätterer T., van Oort F., Peylin P., Poulton P.R., Romanenkov V., Chenu C. Quantifying and isolating stable soil organic carbon using long-term bare fallow experiments. Biogeosciences 2010, 7:3839-3850.
Bending G.D., Turner M.K., Jones J.E. Interactions between crop residues and soil organic matter quality and the functional diversity of soil microbial communities. Soil Biol. Biochem. 2002, 34:1073-1082.
Bertrand I., Chabbert B., Kurek B., Recous S. Can the biochemical features and histology of wheat residues explain their decomposition in soil?. Plant Soil 2006, 281:291-307.
Béziat P., Ceschia E., Dedieu G. Carbon balance of a three crop succession over two cropland sites in South West France. Agric. Forest Meteorol. 2009, 149:1628-1645.
Biomass Energy Centre, 2012. (accessed 20.04.12). http://www.biomassenergycentre.org.uk/.
Bolinder M.A., Angers D.A., Dubuc J.P. Estimating shoot to root ratios and annual carbon inputs in soils for cereal crops. Agric. Ecosyst. Environ. 1997, 63:61-66.
Christensen B.T., Johnston A.E. Chapter 18: soil organic matter and soil quality-lessons learned from long-term experiments at Askov and Rothamsted. Developments of Soil Science 1997, 25:399-430.
Demjanová E., Macák M., Dalović I., Majerník F., Týr S., Smatana J. Effects of tillage systems and crop rotation on weed density weed species composition and weed biomass in maize. Agron. Res. 2009, 7:785-792.
FAO How to Feed the World in 2050. High-Level Expert Forum, 12-13 October 2009 2009, FAO, Rome, Italy.
Follett R.F. Soil management concepts and carbon sequestration in cropland soils. Soil Till. Res. 2001, 61:77-92.
Goidts E., van Wesemael B. Regional assessment of soil organic carbon changes under agriculture in Southern Belgium (1955-2005). Geoderma 2007, 141:341-354.
Gollany H.T., Novak J.M., Liang Y., Albrecht S.L., Rickman R.W., Follett R.F., Wilhelm W.W., Hunt P.G. Simulating soil organic carbon dynamics with residue removal using the CQESTR model. Soil Sci. Soc. Am. J. 2010, 74:372-383.
Haney R.L., Senseman S.A., Hons F.M. Effect of roundup ultra on microbial activity and biomass from selected soils. J. Environ. Qual. 2002, 31:730-735.
Haynes R.J., Naidu R. Influence of lime, fertilizer and manure applications on soil organic matter content and soil physical conditions: a review. Nutr. Cycl. Agroecosyst. 1998, 51:123-137.
Henriksen T.M., Breland T.A. Decomposition of crop residues in the field: evaluation of a simulation model developed from microcosm studies. Soil Biol. Biochem. 1999, 31:1423-1434.
Hou G.H., Zhu X., Cui Y.C. Study on wheat straw/sodium sulfate/water glass shaped phase change plate for walling material. Adv. Mater. Res. 2010, 168(170):1111-1116.
IPCC Good Practice Guidance for National Greenhouse Gas Inventories for Land-use, Land-use Change, and Forestry 2004, Institute of Global Environmental Strategies, Kunagawa, Japan.
IUSS Working Group WRB World Reference Base for Soil Resources 2006 2006, FAO, Rome, World Soil Resources Reports No. 103. 2nd edn.
Jacinthe P.-A., Lal R., Kimble J.M. Carbon budget and seasonal carbon dioxide emission from a central Ohio Luvisol as influenced by wheat residue amendment. Soil Till. Res. 2002, 67:147-157.
Jalota R.K., Dalal R.C., Harms B.P. Effects of litter fine root composition on their decomposition in a Rhodic Paleustalf under different land uses. Commun. Soil Sci. Plan. 2006, 37:1859-1875.
Kätterer T., Reichstein M., Andrèn O., Lomander A. Temperature dependence of organic matter decomposition: a critical review using literature data analyzed with different models. Biol. Fertil. Soils 1998, 27:258-262.
Kindler R., Siemens J., Kaiser K., Walmsley D.C., Bernhofer C., Buchmann N., Cellier P., Eugster W., Gleixner G., Grunwald T., Heim A., Ibrom A., Jones S.K., Jones M., Klumpp K., Kutsch W., Steenberg Larsen K., Lehuger S., Loubet B., McKenzie R., Moors E., Osborne B., Pilegaard K., Rebmann C., Saunders M., Schmidt M.W.I., Schrumpf M., Seyfferth J., Skiba U., Soussana J.-F., Sutton M.A., Tefs C., Vowinckel B., Zeeman M., Kaupenjohann M. Dissolved carbon leaching from soil is a crucial component of the net ecosystem carbon balance. Glob. Change Biol. 2011, 17:1167-1185.
Kong Y.Y., Six J., Bryant D.C., Denison R.F., van Kessel C. The relationship between carbon input aggregation, and soil organic carbon stabilization in sustainable cropping systems. Soil Sci. Soc. Am. J. 2005, 69:1078-1085.
Lal R. Sequestering carbon in soils of agro-ecosystems. Food Policy 2011, 36:S33-S39.
Lettens S., De Vos B., Quataert P., van Wesemael B., Muys B., van Orshoven J. Variable carbon recovery of Walkley-Black analysis and implications for national soil organic carbon accounting. Eur. J. Soil Sci. 2007, 58:1244-1253.
Liang B., Yang X., He X., Murphy D.V., Zhou J. Long-term combined application of manure and NPK fertilizers influenced nitrogen retention and stabilization of organic C in Loess soil. Plant Soil 2012, 353:249-260.
Liu H.S., Li L.H., Han X.G., Huang J.H., Sun J.X., Wang H.Y. Respiratory substrate availability plays a crucial role in the response of soil respiration to environmental factors. Appl. Soil Ecol. 2006, 32:284-292.
Lou Y., Xu M., Wang W., Sun X., Liang C. Soil organic carbon fractions and management index after 20 yr of manure and fertilizer application for greenhouse vegetables. Soil Use Manage. 2011, 27:163-169.
Loubet B., Laville P., Lehuger S., Larmanou E., Fléchard C., Mascher N., Genermont S., Roche R., Ferrara R.M., Stella P., Personne E., Durand B., Decuq C., Flura D., Masson S., Fanucci O., Rampon J.-N., Siemens J., Kindler R., Gabrielle B., Schrumpf M., Cellier P. Carbon, nitrogen and greenhouse gases budgets over a four years crop rotation in Northern France. Plant Soil 2011, 343:109-137.
Lugato E., Berti A., Giardini L. Soil organic carbon (SOC) dynamics with and without residue incorporation in relation to different nitrogen fertilization rates. Geoderma 2006, 135:315-321.
Mikha M.M., Rice C.W. Tillage and manure effects on soil and aggregate-associated carbon and nitrogen. Soil Sci. Soc. Am. J. 2004, 68:809-816.
Milberg P., Hallgren E., Palmer M.W. Interannual variation in weed biomass on arable land in Sweden. Weed Res. 2000, 40:311-321.
Mu Z., Kimura S.D., Toma Y., Hatano R. Evaluation of the soil carbon budget under different upland cropping systems in central Hokkaido, Japan. Soil Sci. Plant Nutr. 2008, 54:650-661.
Nicolardot B., Bouziri L., Bastian F., Ranjard L. A microcosm experiment to evaluate the influence of location and quality of plant residues on residue decomposition and genetic structure of soil microbial communities. Soil Biol. Biochem. 2007, 39:1631-1644.
Norman J.M., Kucharik C.J., Gower S.T., Baldocchi D.D., Crill P.M., Rayment M., Savage K., Striegl R.G. A comparison of six methods for measuring soil-surface carbon dioxide fluxes. J. Geophys. Res. 1997, 102:771-777.
Pettygrove G.S., Heinrich A.L., Eagle A.J. Dairy manure nutrient content and forms. University of California Cooperative Extension Manure Technical Bulletin Series 2010.
Powlson D.S., Bhogal A., Chambers B.J., Coleman K., Macdonald A.J., Goulding K.W.T., Whitmore A.P. The potential to increase soil carbon stocks through reduced tillage or organic material additions in England and Wales: a case study. Agric. Ecosyst. Environ. 2012, 146:23-33.
Rahn C.R., Lillywhite R.D. A study of the quality factors affecting the short-term decomposition of field vegetable residues. J. Sci. Food Agric. 2001, 82:19-26.
Saffih-Hdadi K., Mary B. Modeling consequences of straw residues export on soil organic carbon. Soil Biol. Biochem. 2008, 40:594-607.
Smith P. Carbon sequestration in croplands: the potential in Europe and the global context. Eur. J. Agron 2004, 20:229-236.
Smith P., Powlson D.S., Glendining M.J., Smith J.U. Potential for carbon sequestration in European soils: preliminary estimates for five scenarios using results from long-term experiments. Glob. Change Biol. 1997, 3:67-79.
Smith W.N., Grant B.B., Campbell C.A., McConkey B.G., Desjardins R.L., Kröbel R., Malhi S.S. Crop residue removal effects on soil carbon: measured and inter-model comparisons. Agric. Ecosyst. Environ. 2012, 161:27-38.
Steingrobe B., Schmid H., Gutser R., Claasen N. Roots production and root mortality of winter wheat grown on sandy and loamy soils in different farming systems. Biol. Fertil. Soils 2001, 33:331-339.
Stott D.E., Kassim G., Jarrell W.M., Martin J.P., Haider K. Stabilization and incorporation into biomass of specific plant carbons during biodegradation in soil. Plant Soil 1983, 70:15-26.
Suleau M., Moureaux C., Dufranne D., Buysse P., Bodson B., Destain J.-P., Heinesch B., Debacq A., Aubinet M. Respiration of three Belgian crops: Partitioning of total ecosystem respiration in its heterotrophic, above- and below-ground autotrophic components. Agric. For. Meteorol. 2011, 151:633-643.
Swinnen J., Van Veen J.A., Merckx R. Root decay and turnover of rhizodeposits in field-grown winter wheat and spring barley estimated by 14C pulse-labelling. Soil Biol. Biochem. 1995, 27:211-217.
Swinnen J., Van Veen J.A., Merckx R. Carbon fluxes in the rhizosphere of winter wheat and spring barley with conventional vs integrated farming. Soil Biol. Biochem. 1995, 27:811-820.
Van Noordwijk M., Brouwer G., Koning H., Meijboom F.W., Grzebisz W. Production and decay of structural root material of winter wheat and sugar beet in conventional and integrated cropping systems. Agric. Ecosyst. Environ. 1994, 51:99-113.
Vinther F.P., Hansen E.M., Olesen J.E. Effects of plant residues on crop performance N mineralisation and microbial activity including field CO2 and N2O fluxes in unfertilised crop rotations. Nutr. Cycl. Agroecosyst. 2004, 70:189-199.
Walkley A., Black I.A. An examination of Degtjareff method for determining soil organic matter and a proposed modification of the chromic acid titration method. Soil Sci. 1934, 37:29-37.
Whitmore A.P., Groot J.J.R. The decomposition of sugar beet residues: mineralization versus immobilization in contrasting soil types. Plant Soil 1997, 192:237-247.
