Management effects on European cropland respiration

Eugster, Werner; Moffat, Antje Maria; Ceschia, Éric; Aubinet, Marc; Ammann, Christof; Osborne, Bruce; Davis, Phillip A.; Smith, Pete; Jacobs, C.M.J.; Moors, E.J.; Dantec, Valérie Le; Béziat, Pierre; Saunders, Matthew; Jans, W.W.P.; Grünwald, Thomas; Rebmann, Corinna; Kutsch, Werner L.; Czerný, Radek; Janouš, Dalibor; Moureaux, Christine; Dufranne, Delphine; Carrara, Arnaud; Magliulo, Vincenzo; Tommasi, Paul Di; Olesen, Jes; Schelde, Kirsten; Olioso, Albert; Bernhofer, Christian; Cellier, Pierre; Larmanou, Eric; Loubet, Benjamin; Wattenbach, Martin; Marloie, Olivier; Sanz, M. J.; Søgaard, Henrik; Buchmann, Nina

doi:10.1016/j.agee.2010.09.001

Cited by 63 publications

(30 citation statements)

References 40 publications

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“…The carbon budget of a crop is largely driven by agricultural practices and by environmental conditions (Gervois et al 2008;Ceschia et al 2010;Eugster et al 2010), and it is strictly related to crop development . In order to improve the development of crop models, it is essential to obtain information about the influence of phenological phases on crop processes such as whole-plant photosynthesis and ecosystem respiration also in relationship to biophysical factors, which has been rarely reported for agroecosystems .…”

Section: Discussionmentioning

confidence: 99%

“…Recently, several studies attempted to quantify carbon budget of cropping systems (Moureaux et al 2008;Aubinet et al 2009;Ciais et al 2010;Moors et al 2010;Jans et al 2010;Smith et al 2010), which was found to be driven by both agricultural management and climate conditions (Gervois et al 2008;Ceschia et al 2010;Eugster et al 2010). CO 2 exchange in agricultural crops is affected by both biotic and abiotic factors.…”

Section: Introductionmentioning

confidence: 99%

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The response of ecosystem carbon fluxes to LAI and environmental drivers in a maize crop grown in two contrasting seasons

et al. 2015

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The eddy correlation technique was used to investigate the influence of biophysical variables and crop phenological phases on the behaviour of ecosystem carbon fluxes of a maize crop, in two contrasting growing seasons. In 2009, the reduced water supply during the early growing stage limited leaf area expansion, thus negatively affecting canopy photosynthesis. The variability of gross primary production (GPP) and ecosystem respiration (R eco) was mainly explained by seasonal variation of leaf area index (LAI). The seasonal variation of R eco was positively influenced by soil temperatures (T soil) in 2008 but not in 2009. In 2008, a contribution of both autotrophic and heterotrophic components to total R eco could be hypothesized, while during 2009, autotrophic respiration is supposed to be the most important component. Crop phenological phases affected the response of ecosystem fluxes to biophysical drivers.

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Section: Discussionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

The response of ecosystem carbon fluxes to LAI and environmental drivers in a maize crop grown in two contrasting seasons

et al. 2015

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“…Measurements of biosphere-atmosphere energy and gas exchange, using the eddy covariance technique, are very useful to assess the environmental and anthropogenic factors driving SOC turnover (Eugster et al, 2010), but time series are generally too short to detect non-linear and long-term trends related to land use and management variation. Conversely long-term experiments could be very valuable to derive the rate of SOC change (Powlson et al, 1998), but the specificity of pedo-climatic conditions and management practices may limit their representativeness.…”

Section: Introductionmentioning

confidence: 99%

Land use change and soil organic carbon dynamics in Mediterranean agro-ecosystems: The case study of Pianosa Island

et al. 2012

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“…This may lead to a strong decrease in soil C because large amounts of photosynthetically-fixed CO 2 are 20 removed from the field during harvest and only a relatively small amount of biomass, in form of residues and litter, is returned to the soil (Janzen, 2006). The management type and intensity of agricultural ecosystems strongly influences the net C budget Eugster et al, 2010). Some studies have found that croplands growing specific crops (e.g., maize) and/or under specific management practices (e.g., no tillage or reduced tillage) were net C sinks or C neutral (e.g., Hollinger et al, 2005;Nishimura et al, 2008;Robertson et al, 2000).…”

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“…Some studies have found that croplands growing specific crops (e.g., maize) and/or under specific management practices (e.g., no tillage or reduced tillage) were net C sinks or C neutral (e.g., Hollinger et al, 2005;Nishimura et al, 2008;Robertson et al, 2000). 25 Most of the existing cropland studies looked either at short periods of measurements (single years to only one crop rotation) from single field sites (e.g., Anthoni et al, 2004;Moureaux et al, 2006Moureaux et al, , 2008Aubinet et al, 2009;Béziat et al, 2009;Schmidt et al, 2012;Chi et al, 2016), combined measurements from different field sites (Janssens et al, 2003;Eugster et al, 2010;Gilmanov et al, 2013;Joo et al, 2016;Jensen et al, 2017) or were based on model simulations (e.g., Parazoo et al, 2014;Vuichard et al, 2016). Prescher et al (2010) pointed out the need of long periods for ).…”

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Integrated management of a Swiss cropland is not sufficient to preserve its soil carbon pool in the long-term

Emmel¹,

Winkler²,

Hörtnagl³

et al. 2018

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Abstract. Croplands are involved in the exchange of carbon dioxide (CO 2 ) between the atmosphere and the biosphere. Furthermore, soil carbon (C) stocks play an important role in soil fertility. It is, thus, of great interest to know whether croplands act as a net source or sink of atmospheric CO 2 , and if soil C stocks are preserved over long timescales. The FLUXNET site CH-Oe2 in Oensingen, Switzerland has been operational since the end of 2003. This cropland is managed under the Swiss framework of the Proof of Ecological Performance (PEP, a variant of integrated management) with a crop rotation centred on winter wheat, 5 which also includes winter barley, winter rapeseed, peas, potato and intermediate cover crops. In addition to eddy covariance measurements, meteorological and soil measurements were available along with information on C imports and exports from organic fertilisation, sowing and harvesting. This study investigates cropland C budgets over 13 years and assesses whether the PEP regulations resulted in a balanced C budget. Strongest CO 2 uptake was observed during cereal seasons. C export through harvest, however, offset the strong uptake of the cereal crops. The largest net CO 2 emissions to the atmosphere were observed 10 during pea and cover crop seasons. Net biome production, representing the overall C budget, typically ranged between close to C neutral to C losses of up to 407 g C m ), which was confirmed by soil C stock measurements at the beginning and the end of the study period. Although managing the field under the regulations of PEP did not result in an overall C sink, model simulations showed that the use of cover crops reduced the C losses compared to leaving the field bare. The use of solid manure improved 15 the C budget by importing substantial amounts of C into the soil while liquid manure had only a small effect. We thus conclude that additional efforts are needed to bring Swiss management practices closer to the goal of preserving soil C in the long-term.Copyright statement.

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Management effects on European cropland respiration

Cited by 63 publications

References 40 publications

The response of ecosystem carbon fluxes to LAI and environmental drivers in a maize crop grown in two contrasting seasons

The response of ecosystem carbon fluxes to LAI and environmental drivers in a maize crop grown in two contrasting seasons

Land use change and soil organic carbon dynamics in Mediterranean agro-ecosystems: The case study of Pianosa Island

Integrated management of a Swiss cropland is not sufficient to preserve its soil carbon pool in the long-term

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