Methane, carbon dioxide and nitrous oxide fluxes from a temperate salt marsh: Grazing management does not alter Global Warming Potential

Ford, Hilary; Garbutt, Angus; Jones, Laurence; Jones, Davey L.

doi:10.1016/j.ecss.2012.08.002

Cited by 48 publications

(43 citation statements)

References 53 publications

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“…The carbon content of the underlying sandier substrate was calculated using soils sampled at 30 cm depth from the nine sites, and this figure was extrapolated for the remaining soil profile to a depth of 50 cm, taken to be the average sediment depth for these systems. Bulk density for west coast soils was calculated from 36 samples on the Ribble estuary, to 15 cm depth (Ford et al 2012b). On the East coast of England nine salt marshes were sampled along the coast of the county of Essex, following methods in Burden et al (2013).…”

Section: [Insert Table 3: Carbon Stocks (T) By Habitat Vegetation Amentioning

confidence: 99%

“…Methane (CH 4 ) emissions from saltmarsh have previously been thought to be negligible due to sulphate inhibition of methanogenesis, but recent evidence suggests they can be locally high, particularly in grazed systems (Ford et al 2012b). Nitrous oxide (N 2 O) emissions may be important (Andrews et al, 2006;Dausse et al 2012) but are relatively un-studied.…”

Section: Net Valuesmentioning

confidence: 99%

“…Nitrous oxide (N 2 O) emissions may be important (Andrews et al, 2006;Dausse et al 2012) but are relatively un-studied. Ford et al (2012b) suggest for saltmarsh that the carbon budget represents the bulk of the greenhouse gas forcing, therefore the contribution of other gases to climate regulation can probably be ignored for this habitat. Both nitrous oxide and methane emissions are unstudied in dune grassland and machair systems but are likely to be negligible in these predominantly dry habitats.…”

Section: Net Valuesmentioning

confidence: 99%

“…Below ground biomass C was estimated for all sites based on the ratio of below: above ground plant C from a separate study on the Ribble estuary (Ford 2012b). Soils were sampled to 15 cm to incorporate the majority of the organic-rich sediment, following methods in Ford et al (2012a).…”

Section: [Insert Table 3: Carbon Stocks (T) By Habitat Vegetation Amentioning

confidence: 99%

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The value of carbon sequestration and storage in coastal habitats

Beaumont

Jones

Garbutt

et al. 2014

Estuarine, Coastal and Shelf Science

145

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Abstract:Coastal margin habitats are globally significant in terms of their capacity to sequester and store carbon, but their continuing decline, due to environmental change and human land use decisions, is reducing their capacity to provide this ecosystem service. In this paper the UK is used as a case study area to develop methodologies to quantify and calculate a monetary value for the service of carbon sequestration and storage in coastal margin habitats. Specific changes in UK coastal habitat area between 1900 and 2060 are documented, the long term stocks of carbon stored by these habitats are calculated, and the capacity of these habitats to sequester CO 2 is outlined. Changes in value of the carbon sequestration and storage service of coastal habitats were then projected for under two scenarios, the maintenance of the current state of the habitat and the continuation of current trends of habitat loss. If coastal habitats were to be maintained at their current extent, their sequestration capacity over the period 2000-2060 is valued to be in the region of £1-3 billion UK sterling. However, if current trends of habitat loss continue, the capacity of the coastal habitats both to sequester and store CO 2 will be significantly reduced, with a reduction in value of around £0.25 -1 billion . If loss-trends due to sea level rise or land reclamation worsen, this loss in value will be greater. This case study provides valuable site specific information, but also highlights global issues regarding the quantification and valuation of carbon sequestration and storage. Whilst our ability to value ecosystem services is improving, considerable uncertainty remains. If such ecosystem valuations are to be incorporated with confidence into national and global policy and legislative frameworks, it is necessary to further address this uncertainty. Recommendations on achieving this are outlined.3

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Section: [Insert Table 3: Carbon Stocks (T) By Habitat Vegetation Amentioning

confidence: 99%

Section: Net Valuesmentioning

confidence: 99%

Section: Net Valuesmentioning

confidence: 99%

Section: [Insert Table 3: Carbon Stocks (T) By Habitat Vegetation Amentioning

confidence: 99%

See 2 more Smart Citations

The value of carbon sequestration and storage in coastal habitats

Beaumont

Jones

Garbutt

et al. 2014

Estuarine, Coastal and Shelf Science

145

View full text Add to dashboard Cite

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“…Nutrient cycling is important as it determines plant available N, a limiting factor for plant primary productivity (Bardgett et al, 2011), mediated by grassland decomposition rate. Soil organic matter decomposition can be measured by mineralisation assays and by the biological activity of soil meso-faunal decomposers using bait lamina (Ford et al, 2012b) and is likely to be enhanced by N addition treatments in grass-dominated habitats due to enhanced litter quality and palatability (Gong et al, 2015). There is a theoretical contrast apparent between the impact of enhanced N additions, expected to increase N cycling rates, and grazing which might increase or decrease N cycling, depending on which theory you subscribe to.…”

Section: Introductionmentioning

confidence: 99%

Nitrogen and phosphorus co-limitation and grazing moderate nitrogen impacts on plant growth and nutrient cycling in sand dune grassland

Ford

Roberts

Jones

2016

Science of The Total Environment

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Atmospheric nitrogen (N) deposition alters plant biodiversity and ecosystem function in grasslands worldwide. This study examines the impact of 6 years of nutrient addition and grazing management on a sand dune grassland. Results indicate that co-limitation of N and phosphorus (P) moderates the impact of realistic rates of N addition (7.5, 15 kg N ha −1 year −1 ). Combined NP addition (15 kg N + 10 kg P ha −1 year −1 ) was the only nutrient treatment to differ significantly from the control, with greater above-ground biomass (mainly moss), and enhanced N and P mineralisation rates. Grazing management altered plant functional group composition, reduced above-ground biomass and meso-faunal feeding rates, and decoupled N and P mineralisation. There were no synergistic effects of grazing and N treatment. Although NP co-limitation apparently prevents adverse impacts of N deposition above the critical load, excess N is likely to be stored in moss biomass and soil, with unknown future consequences.Capsule: This study shows that at realistic levels of N addition, NP co-limitation in a dune grassland appears to prevent adverse impacts of N on plant growth and nutrient cycling.

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CO2 Flux in Tidal Flats and Salt Marshes

Otani

Endô

2018

Blue Carbon in Shallow Coastal Ecosystems

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Methane, carbon dioxide and nitrous oxide fluxes from a temperate salt marsh: Grazing management does not alter Global Warming Potential

Cited by 48 publications

References 53 publications

The value of carbon sequestration and storage in coastal habitats

The value of carbon sequestration and storage in coastal habitats

Nitrogen and phosphorus co-limitation and grazing moderate nitrogen impacts on plant growth and nutrient cycling in sand dune grassland

CO2 Flux in Tidal Flats and Salt Marshes

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