Partitioning European grassland net ecosystem CO2 exchange into gross primary productivity and ecosystem respiration using light response function analysis

Gilmanov, Tagir G.; Soussana, Jean‐François; Aires, Luís; Allard, Vincent; Ammann, Christof; Balzarolo, Manuela; Barcza, Zoltán; Bernhofer, Christian; Campbell, Claire; Cernusca, Alexander; Cescatti, A.; Clifton‐Brown, John; Dirks, B.O.M.; Dore, Sabina; Eugster, Werner; Fuhrer, Jürg; Gimeno, Cristina; Gruenwald, T.; Haszpra, László; Hensen, A.; Ibrom, Andreas; Jacobs, A.F.G.; Jones, Mike; Lanigan, Gary; Laurila, Tuomas; Lohila, Annalea; Manca, Giovanni; Marcolla, Barbara; Nagy, Zoltán; Pilegaard, Kim; Pintér, Krisztina; Pio, Casimiro; Raschi, A.; Rogiers, Nele; Sanz, María José; Stefani, P.; Sutton, Mark A.; Tuba, Zoltán; Валентини, Р.; Williams, Mike; Wohlfahrt, Georg

doi:10.1016/j.agee.2006.12.008

Cited by 329 publications

(230 citation statements)

References 76 publications

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“…It has no direct effect on the atmospheric CO 2 concentration, because it is 'short-cycling' carbon, which has been fixed by plants earlier. Gilmanov et al (2007) have analysed tower CO 2 flux measurements from 20 European grasslands, covering a wide range of environmental and management conditions. F CO 2 varies from significant net uptake (650 g C/m 2 per year) to significant release (160 g C/m 2 per year).…”

Section: Grassland Carbon Sequestrationmentioning

confidence: 99%

“…F CO 2 varies from significant net uptake (650 g C/m 2 per year) to significant release (160 g C/m 2 per year). Four sites became CO 2 sources in some years, two of them during drought events and two of them with a significant peat horizon (Gilmanov et al, 2007). Therefore, net CO 2 release (F CO 2 , 0) is associated with organic-rich soils and heat stress.…”

Section: Grassland Carbon Sequestrationmentioning

confidence: 99%

“…In addition, annual rainfall, temperature and radiation (Hunt et al, 2004;Ciais et al, 2005;Gilmanov et al, 2007;Soussana et al, 2007) play an important role for the variability in NCS between years and between sites. Other possibly overlooked factors in C flux studies include past changes in land use (e.g.…”

Section: Grassland Carbon Sequestrationmentioning

confidence: 99%

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Mitigating the greenhouse gas balance of ruminant production systems through carbon sequestration in grasslands

Soussana

Tallec

Blanfort

2010

Animal

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425

289

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Soil carbon sequestration (enhanced sinks) is the mechanism responsible for most of the greenhouse gas (GHG) mitigation potential in the agriculture sector. Carbon sequestration in grasslands can be determined directly by measuring changes in soil organic carbon (SOC) stocks and indirectly by measuring the net balance of C fluxes. A literature search shows that grassland C sequestration reaches on average 5 6 30 g C/m 2 per year according to inventories of SOC stocks and 2231 and 77 g C/m 2 per year for drained organic and mineral soils, respectively, according to C flux balance. Off-site C sequestration occurs whenever more manure C is produced by than returned to a grassland plot. The sum of on-and off-site C sequestration reaches 129, 98 and 71 g C/m 2 per year for grazed, cut and mixed European grasslands on mineral soils, respectively, however with high uncertainty. A range of management practices reduce C losses and increase C sequestration: (i) avoiding soil tillage and the conversion of grasslands to arable use, (ii) moderately intensifying nutrient-poor permanent grasslands, (iii) using light grazing instead of heavy grazing, (iv) increasing the duration of grass leys; (v) converting grass leys to grass-legume mixtures or to permanent grasslands. With nine European sites, direct emissions of N 2 O from soil and of CH 4 from enteric fermentation at grazing, expressed in CO 2 equivalents, compensated 10% and 34% of the on-site grassland C sequestration, respectively. Digestion inside the barn of the harvested herbage leads to further emissions of CH 4 and N 2 O by the production systems, which were estimated at 130 g CO 2 equivalents/m 2 per year. The net balance of on-and off-site C sequestration, CH 4 and N 2 O emissions reached 38 g CO 2 equivalents/m 2 per year, indicating a non-significant net sink activity. This net balance was, however, negative for intensively managed cut sites indicating a source to the atmosphere. In conclusion, this review confirms that grassland C sequestration has a strong potential to partly mitigate the GHG balance of ruminant production systems. However, as soil C sequestration is both reversible and vulnerable to disturbance, biodiversity loss and climate change, CH 4 and N 2 O emissions from the livestock sector need to be reduced and current SOC stocks preserved.

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Section: Grassland Carbon Sequestrationmentioning

confidence: 99%

Section: Grassland Carbon Sequestrationmentioning

confidence: 99%

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Mitigating the greenhouse gas balance of ruminant production systems through carbon sequestration in grasslands

Soussana

Tallec

Blanfort

2010

Animal

Self Cite

425

289

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“…Starting from the last 50 years the area has been managed by a combination of clipping/harvesting and cattle grazing. The Eddy Covariance flux tower has been installed in June 2002 and the measurements have been carried out until July 2008 (Gilmanov et al 2007;Wohlfahrt et al 2008). …”

Section: Amplero (It-amp)mentioning

confidence: 99%

Carbon, Water and Energy Fluxes of Terrestrial Ecosystems in Italy

Papale

Migliavacca

Cremonese³

et al. 2014

The Greenhouse Gas Balance of Italy

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In this chapter the Eddy Covariance network of Italy is presented, with a short introduction to each of the 29 sites that were active during the CarboItaly project. These sites provided a unique dataset for a better study and understanding of the carbon cycle of terrestrial ecosystems and the links between carbon sink capacity and the main environmental factors. After a number of examples of Eddy Covariance time series where it is possible to see the effect of interannual climate variability and disturbances and managements practices, an analysis of the role of

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“…A functional relationship between PPFD and NEE, also known as the 'light response curve' described by a rectangular hyperbola (Gilmanov et al, 2007) …”

Section: Net Ecosystem Co2 Exchange (Nee)mentioning

confidence: 99%

Seasonal Dynamics in Carbon Dioxide Flux Es of the Herbaceous Layer of a Moist Kenyan Savannah

K'Otuto¹

2014

Appl Ecol Env Res

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Partitioning European grassland net ecosystem CO2 exchange into gross primary productivity and ecosystem respiration using light response function analysis

Cited by 329 publications

References 76 publications

Mitigating the greenhouse gas balance of ruminant production systems through carbon sequestration in grasslands

Mitigating the greenhouse gas balance of ruminant production systems through carbon sequestration in grasslands

Carbon, Water and Energy Fluxes of Terrestrial Ecosystems in Italy

Seasonal Dynamics in Carbon Dioxide Flux Es of the Herbaceous Layer of a Moist Kenyan Savannah

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