Abstract
Only scarce information is available on how organic C is incorporated into the soil during the decay and how (micro) climate influences this process. Therefore, we investigated the effect of exposure and elevation on the organic litter decomposition and C-stabilisation in acidic soils of an Alpine environment. An experiment with artificially 13C labelled Norway spruce needles was carried out at north- and south-exposed sites between 1200 and 2400 m a.s.l. in the Italian Alps using mesocosms. After 1 year, the 13C recoveries of the bulk soil were 18.6% at the north-facing slopes and 31.5% at the south-facing slopes. A density fractionation into a light (LF; ≤1.6 g cm−3) and a heavy fraction (HF; >1.6 g cm−3) of the soil helped to identify how the applied substrate was stabilised. At the northern slope, 10.5% of the substrate was recovered in the LF and 8.1% in the HF and at the south-facing slope 22.8% in the LF and 8.1% in the HF. The overall 13C recovery was higher at the south-facing sites due to restricted water availability. Although the climate is humid in the whole area, soil moisture availability becomes more important at south-facing sites due to higher evapotranspiration. However, at sites >1700 m a.s.l, the situation changed, as the northern slope had higher recovery rates. At such altitudes, temperature effects are more dominant. This highlights the importance of locally strongly varying edaphic factors when investigating the carbon cycle.
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Ascher J, Sartori G, Graefe U, Thornton B, Ceccherini MT, Pietramellara G, Egli M (2012) Are humus forms, mesofauna and microflora in subalpine forest soils sensitive to thermal conditions? Biol Fertil Soils 48:709–725
Bernoux M, Cerri CC, Neill C, de Moraes JF (1998) The use of stable carbon isotopes for estimating soil organic matter turnover rates. Geoderma 82:43–58
Bird JA, Kleber M, Torn MS (2008) 13C and 15N stabilization dynamics in soil organic matter fractions during needle and fine root decomposition. Org Geochem 39:465–477
Bottner P, Coûteaux MM, Anderson JM, Berg B, Billès G, Bolger T, Casabianca H, Romanyá J, Rovira P (2000) Decomposition of 13C-labelled plant material in a European 65°–40° latitudinal transect of coniferous forest soils: simulation of climate change by translocation of soils. Soil Biol Biochem 32:527–543
Cerli C, Celi L, Kalbitz K, Guggenberger G, Kaiser K (2012) Separation of light and heavy organic matter fractions in soil—testing for proper density cut-off and dispersion level. Geoderma 170:403–416
Dahlgren RA, Rasmussen C, Southard RJ (1997) Soil development along elevational transects on granite, andesitic lahar and basalt in the western Sierra Nevada, California. Geoderma 78:207–236
Davidson EA, Janssens IA (2006) Temperature sensitivity of soil carbon decomposition and feedbacks to climate change. Nature 440:165–173
Davidson EA, Janssens IA, Lou Y (2006) On the variability of respiration in terrestrial ecosystems: moving beyond Q10. Glob Change Biol 12:154–164
Djukic I, Zehetner F, Tatzber M, Gerzabek MH (2010) Soil organic-matter stocks and characteristics along an Alpine elevation gradient. J Plant Nutr Soil Sci 173:30–38
Egli M, Mirabella A, Sartori G, Zanelli R, Bischof S (2006) Effect of north and south exposure on weathering rates and clay mineral formation in Alpine soils. Catena 67:155–174
Egli M, Sartori G, Mirabella A, Favilli F, Giaccai D, Delbos E (2009) Effect of north and south exposure on organic matter in high Alpine soils. Geoderma 149:124–136
Fontaine S, Bardoux G, Benest D, Verdier B, Mariotti A, Abbadie L (2004) Mechanisms of the priming effect in a Savannah soil amended with cellulose. Soil Sci Soc Am J 68:125–131
Frey SD, Lee J, Melillo JM, Six J (2013) The temperature response of soil microbial efficiency and its feedback to climate. Nat Clim Change 3:395–398
Garcia-Pausas J, Casals P, Camarero L, Huguet C, Sebastià MT, Thompson R, Romanyà J (2007) Soil organic carbon storage in mountain grasslands of the Pyrenees: effects of climate and topography. Biogeochemistry 82:279–289
Garten CTJ, Hanson PJ (2006) Measured forest soil C stocks and estimated turnover times along an elevation gradient. Geoderma 136:342–352
Hatton PJ, Kleber M, Zeller B, Moni C, Plante AF, Townsend K, Gelhaye L, Lajtha K, Derrien D (2012) Transfer of litter-derived N to soil mineral-organic associations: evidence from decadal 15N tracer experiments. Org Geochem 42:1489–1501
Hatton PJ, Castanha C, Torn MS, Bird JA (2015) Litter type control on soil C and N stabilization dynamics in a temperate forest. Glob Change Biol 21:1358–1367
Jabiol B, Zanella A, Ponge JF, Sartori G, Englisch M, van Delft D, de Waal R, Le Bayon RC (2013) A proposal for including humus forms in the World Reference Base for Soil Resources (WRB-FAO). Geoderma 192:286–294
Kammer A, Hagedorn F (2011) Mineralisation, leaching and stabilisation of 13C-labelled leaf and twig litter in a beech forest soil. Biogeosciences 8:2195–2208
Kleber M, Sollins P, Sutton R (2007) A conceptual model of organo-mineral interactions in soils: self-assembly of organic molecular fragments into zonal structures on mineral surfaces. Biogeochemistry 85:9–24
Kuzyakov Y, Friedel JK, Stahr K (2000) Review of mechanisms and quantification of priming effects. Soil Biol Biochem 32:1485–1498
Leifeld J, Bassin S, Conen F, Hajdas I, Egli M, Fuhrer J (2013) Control of soil pH on turnover of belowground organic matter in subalpine grassland. Biogeochemistry 112:59–69
Liski J, Nissinen A, Erhard M, Taskinen O (2003) Climatic effects on litter decomposition from arctic tundra to tropical rainforest. Glob Change Biol 9:575–584
Lorenz K, Preston CM, Raspe S, Morrison IK, Feger KH (2000) Litter decomposition and humus characteristics in Canadian and German spruce ecosystems: information from tannin analysis and 13C CPMAS NMR. Soil Biol Biochem 32:779–792
Maestrini B, Abiven S, Singh N, Bird JA, Torn MS, Schmidt MWI (2014) Carbon losses from pyrolysed and original wood in a forest soil under natural and increased N deposition. Biogeosciences 11:5199–5213
Murphy KL, Klopatek JM, Klopatek CC (1998) The effects of litter quality and climate on decomposition along an elevational gradient. Ecol Appl 8:1061–1071
Patruno A, Cavazza L, Castriganò A (1997) Metodi di analisi fisica del suolo, Parte III, 1. Ministero per le Politiche Agricole Osservatorio Nazionale Pedologico e per la Qualità del suolo, in collaborazione con International Society of Soil Science, ISO/DIS 11277
Petrillo M, Cherubini P, Sartori G, Abiven S, Ascher J, Bertoldi D, Barbero A, Larcher R, Egli M (2015) Biochemical characteristics of decomposing deadwood in an Alpine forest and their relation to climate. iForest 9:154–164
Powers JS, Schlesinger WH (2002) Geographic and vertical patterns of stable carbon isotopes in tropical rain forest soils of Costa Rica. Geoderma 109:141–160
Rodeghiero M, Cescatti A (2005) Main determinants of forest soil respiration along an elevation/temperature gradient in the Italian Alps. Glob Change Biol 11:1024–1041
Rubino M, Dungait JAJ, Evershed RP, Bertolini T, De Angelis P, D’Onofrio A, Lagomarsino A, Lubritto C, Merola A, Terrasi F, Cotrufo MF (2010) Carbon input belowground is the major C flux contributing to leaf litter mass loss: evidences from a 13C labelled-leaf litter experiment. Soil Biol Biochem 42:1009–1016
Sboarina C, Cescatti A (2004) Il clima del Trentino—Distribuzione spaziale delle principali variabili climatiche. Report 33, Centro di Ecologia Alpina Monte Bondone, Trento, Italy
Schmid MO, Gubler S, Fiddes J, Gruber S (2012) Inferring snowpack ripening and melt-out from distributed measurements of near-surface ground temperatures. Cryosphere 6:1127–1139
Schmidt MWI, Torn MS, Abiven S, Dittmar T, Guggenberger G, Janssens IA, Kleber M, Kögel-Knabner I, Lehmann J, Manning DAC, Nannipieri P, Rasse DP, Weiner S, Trumbore SE (2011) Persistence of soil organic matter as an ecosystem property. Nature 478:49–56
Schulze ED, Wirth C, Heimann M (2000) Managing forests after Kyoto. Science 289:2058–2059
Singh N, Abiven S, Maestrini B, Bird JA, Torn MS, Schmidt MWI (2014) Transformation and stabilization of pyrogenic organic matter in a temperate forest field experiment. Glob Change Biol 20:1629–1642
Sollins P, Swanston C, Kleber M, Filley T, Kramer M, Crow S, Caldwell BA, Lajtha K, Bowden R (2006) Organic C and N stabilization in a forest soil: evidence from sequential density fractionation. Soil Biol Biochem 38:3313–3324
Studer MS, Siegwolf RTW, Abiven S (2014) Carbon transfer, partitioning and residence time in the plant-soil system: a comparison of two 13CO2 labelling techniques. Biogeosciences 11:1637–1648
van der Wal A, Klein Gunnewiek PJA, Cornelissen JHC, Crowther TW, de Boer W (2016) Patterns of natural fungal community assembly during initial decay of coniferous and broadleaf tree logs. Ecosphere 7:1–17
Zanella A, Jabiol B, Ponge JF, Sartori G, De Waal R, Van Delft B, Graefe U, Cools N, Katzensteiner K, Hager H, Englisch M (2011) A European morpho-functional classification of humus forms. Geoderma 164:138–145
Acknowledgements
This study is part of the DecAlp DACH project no. 205321L_141186 and the snf project 200021_162338. J. Ascher-Jenull has been funded by the Fonds zur Förderung der wissenschaftlichen Forschung (FWF) Austria (Project I989-B16). We are indebted to Fabio Angeli of the ‘Ufficio distrettuale forestale di Malé’ and his team of foresters for their support in the field.
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Egli, M., Hafner, S., Derungs, C. et al. Decomposition and stabilisation of Norway spruce needle-derived material in Alpine soils using a 13C-labelling approach in the field. Biogeochemistry 131, 321–338 (2016). https://doi.org/10.1007/s10533-016-0281-x
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DOI: https://doi.org/10.1007/s10533-016-0281-x