A 19-year long energy budget of an upland peat bog, northern England

Worrall, F.; Burt, T.P.; Clay, G.D.; Moody, C.S.

doi:10.1016/j.jhydrol.2014.11.019

The changing water cycle: hydroclimatic extremes in the British Isles (2016)
Journal Article
Burt, T., Howden, N., & Worrall, F. (2016). The changing water cycle: hydroclimatic extremes in the British Isles. Wiley Interdisciplinary Reviews: Water, 3(6), 854-870. https://doi.org/10.1002/wat2.1169

This focus article is concerned with long-term changes in hydroclimatic extremes across the British Isles. The combination of short records, poor data quality, nonstationarity, and other methodological constraints is a major obstacle to the attributi... Read More about The changing water cycle: hydroclimatic extremes in the British Isles.

Long-term accumulation and transport of anthropogenic phosphorus in three river basins (2016)
Journal Article
Powers, S., Bruulsema, T., Burt, T., Chan, N., Elser, J., Haygarth, P., …Zhang, F. (2016). Long-term accumulation and transport of anthropogenic phosphorus in three river basins. Nature Geoscience, 9(5), 353-356. https://doi.org/10.1038/ngeo2693

Global food production depends on phosphorus. Phosphorus is broadly applied as fertilizer, but excess phosphorus contributes to eutrophication of surface water bodies and coastal ecosystems1. Here we present an analysis of phosphorus fluxes in three... Read More about Long-term accumulation and transport of anthropogenic phosphorus in three river basins.

Fugitive emissions of methane from abandoned, decommissioned oil and gas wells (2016)
Journal Article
Boothroyd, I., Almond, S., Qassim, S., Worrall, F., & Davies, R. (2016). Fugitive emissions of methane from abandoned, decommissioned oil and gas wells. Science of the Total Environment, 547, 461-469. https://doi.org/10.1016/j.scitotenv.2015.12.096

This study considered the fugitive emissions of methane (CH4) from former oil and gas exploration and production wells drilled to exploit conventional hydrocarbon reservoirs onshore in the UK. This study selected from the 66% of all onshore wells in... Read More about Fugitive emissions of methane from abandoned, decommissioned oil and gas wells.

The effective oxidation state of a peatland (2016)
Journal Article
Worrall, F., Clay, G., Moody, C., Burt, T., & Rose, R. (2016). The effective oxidation state of a peatland. Journal of Geophysical Research: Biogeosciences, 121(1), 145-158. https://doi.org/10.1002/2015jg003182

The oxidative ratio (OR) of the organic matter of the terrestrial biosphere is a key parameter in the understanding of the magnitude of the carbon sink represented both by the terrestrial biosphere and by the global oceans. However, no study has cons... Read More about The effective oxidation state of a peatland.

Sporadic hotspots for physico-chemical retention of aquatic organic carbon: from peatland headwater source to sea (2015)
Journal Article
Palmer, S., Evans, C., Chapman, P., Burden, A., Jones, T., Allott, T., …Holden, J. (2016). Sporadic hotspots for physico-chemical retention of aquatic organic carbon: from peatland headwater source to sea. Aquatic Sciences - Research Across Boundaries, 78(3), 491-504. https://doi.org/10.1007/s00027-015-0448-x

Few studies have quantified the role of in-stream processes on net dissolved and particulate organic carbon (DOC and POC, respectively) export from peatland catchments, and those that have offer conflicting evidence. In this study, we evaluated evide... Read More about Sporadic hotspots for physico-chemical retention of aquatic organic carbon: from peatland headwater source to sea.

Sub-daily rates of degradation of fluvial carbon from a peat headwater stream (2015)
Journal Article
Moody, C., & Worrall, F. (2016). Sub-daily rates of degradation of fluvial carbon from a peat headwater stream. Aquatic Sciences - Research Across Boundaries, 78(3), 419-431. https://doi.org/10.1007/s00027-015-0456-x

In-stream processing of allochthonous dissolved organic carbon (DOC) and particulate organic carbon (POC) in peat-sourced headwaters has been shown to be a significant part of the terrestrial carbon cycle, through photo- and bio-degradation, with bot... Read More about Sub-daily rates of degradation of fluvial carbon from a peat headwater stream.

Identifying DOC gains and losses during a 20-year record in the Trout Beck catchment, Moor House, UK (2015)
Journal Article
Moody, C., Worrall, F., & Burt, T. (2016). Identifying DOC gains and losses during a 20-year record in the Trout Beck catchment, Moor House, UK. Ecological Indicators, 68, 102-114. https://doi.org/10.1016/j.ecolind.2015.11.033

The turnover of organic carbon in rivers could represent a large source of greenhouse gases to the atmosphere and studies have suggested that of the order of 70% of the dissolved organic carbon exported from soils could be lost in rivers before it fl... Read More about Identifying DOC gains and losses during a 20-year record in the Trout Beck catchment, Moor House, UK.

The impact of fertilizer management on the oxidation status of terrestrial organic matter (2015)
Journal Article
Worrall, F., Clay, G., & Macdonald, A. (2016). The impact of fertilizer management on the oxidation status of terrestrial organic matter. Soil Use and Management, 32(1), 45-52. https://doi.org/10.1111/sum.12228

The oxidative ratio (the ratio of moles of O2 produced per mole CO2 sequestered – OR) of the organic matter in the terrestrial biosphere governs the ability of the terrestrial biosphere to uptake CO2. The value of OR is known to vary between environm... Read More about The impact of fertilizer management on the oxidation status of terrestrial organic matter.

Variations in dissolved organic carbon concentrations across peatland hillslopes (2015)
Journal Article
Boothroyd, I., Worrall, F., & Allott, T. (2015). Variations in dissolved organic carbon concentrations across peatland hillslopes. Journal of Hydrology, 530, 372-383. https://doi.org/10.1016/j.jhydrol.2015.10.002

Peatlands are important terrestrial carbon stores and dissolved organic carbon (DOC) is one of the most important contributors to carbon budgets in peatland systems. Many studies have investigated factors affecting DOC concentration in peatland syste... Read More about Variations in dissolved organic carbon concentrations across peatland hillslopes.

The fluvial flux of particulate organic matter from the UK: the emission factor of soil erosion (2015)
Journal Article
Worrall, F., Burt, T., & Howden, N. (2016). The fluvial flux of particulate organic matter from the UK: the emission factor of soil erosion. Earth Surface Processes and Landforms, 41(1), 61-71. https://doi.org/10.1002/esp.3795

Soil erosion has been identified as a potential global carbon sink since eroded organic matter is replaced at source and eroded material is readily buried. However, this argument has relied on poor estimates of the total fate of in-transit particulat... Read More about The fluvial flux of particulate organic matter from the UK: the emission factor of soil erosion.

The problem of self-correlation in fluvial flux data - the case of nitrate flux from UK rivers (2015)
Journal Article
Worrall, F., Burt, T., & Howden, N. (2015). The problem of self-correlation in fluvial flux data - the case of nitrate flux from UK rivers. Journal of Hydrology, 530, 328-335. https://doi.org/10.1016/j.jhydrol.2015.09.068

This study proposes a general method for testing for self-correlation (also known as spurious or induced correlation) in comparisons where there is a common variable, e.g. the comparison of the fluvial flux of a component with water yield. We conside... Read More about The problem of self-correlation in fluvial flux data - the case of nitrate flux from UK rivers.

Towards a Mechanistic Understanding of Carbon Stabilization in Manganese Oxides (2015)
Journal Article
Johnson, K., Purvis, G., Lopez-Capel, E., Peacock, C., Gray, N., Wagner, T., …Greenwell, C. (2015). Towards a Mechanistic Understanding of Carbon Stabilization in Manganese Oxides. Nature Communications, 6, Article 7628. https://doi.org/10.1038/ncomms8628

Minerals stabilize organic carbon (OC) in sediments, thereby directly affecting global climate at multiple scales, but how they do it is far from understood. Here we show that manganese oxide (Mn oxide) in a water treatment works filter bed traps dis... Read More about Towards a Mechanistic Understanding of Carbon Stabilization in Manganese Oxides.

Is there an impact of climate change on soil carbon contents in England and Wales? (2015)
Journal Article
Barraclough, D., Smith, P., Worrall, F., Black, H., & Bhogal, A. (2015). Is there an impact of climate change on soil carbon contents in England and Wales?. European Journal of Soil Science, 66(3), 451-462. https://doi.org/10.1111/ejss.12253

It is not yet clear how soils are responding to a warming climate. A major study using the National Soil Inventory (NSI) of England and Wales reported large declines in soil carbon concentration across 11 land uses between 1978 and 2003 and concluded... Read More about Is there an impact of climate change on soil carbon contents in England and Wales?.

Understanding the diurnal cycle in fluvial dissolved organic carbon – The interplay of in-stream residence time, day length and organic matter turnover (2015)
Journal Article
Worrall, F., Howden, N., & Burt, T. (2015). Understanding the diurnal cycle in fluvial dissolved organic carbon – The interplay of in-stream residence time, day length and organic matter turnover. Journal of Hydrology, 523, 830-838. https://doi.org/10.1016/j.jhydrol.2015.01.075

There is increasing interest in characterising the diurnal fluctuation of stream solute concentrations because observed data series derived from spot samples may be highly subjective if such diurnal fluctuations are large. This can therefore lead to... Read More about Understanding the diurnal cycle in fluvial dissolved organic carbon – The interplay of in-stream residence time, day length and organic matter turnover.

Carbon stocks and carbon fluxes from a 10-year prescribed burning chronosequence on a UK blanket peat (2015)
Journal Article
Clay, G., & Worrall, F. (2015). Carbon stocks and carbon fluxes from a 10-year prescribed burning chronosequence on a UK blanket peat. Soil Use and Management, 31(1), 39-51. https://doi.org/10.1111/sum.12164

Prescribed burning is a common land management technique in many areas of the UK uplands. However, concern has been expressed at the impact of this management practice on carbon stocks and fluxes found in the carbon-rich peat soils that underlie many... Read More about Carbon stocks and carbon fluxes from a 10-year prescribed burning chronosequence on a UK blanket peat.

Oxidative ratio (OR) of Southern African soils and vegetation: Updating the global OR estimate (2015)
Journal Article
Clay, G., & Worrall, F. (2015). Oxidative ratio (OR) of Southern African soils and vegetation: Updating the global OR estimate. CATENA, 126, 126-133. https://doi.org/10.1016/j.catena.2014.10.029

Oxidative ratio (OR) is the ratio of moles O2 released per mole CO2 sequestered through photosynthesis in the terrestrial biosphere. The lower the OR value the more CO2 an environment can potentially sequester. It is this property of the organic matt... Read More about Oxidative ratio (OR) of Southern African soils and vegetation: Updating the global OR estimate.

Estimating the oxidative ratio of UK peats and agricultural soils (2015)
Journal Article
Clay, G., & Worrall, F. (2015). Estimating the oxidative ratio of UK peats and agricultural soils. Soil Use and Management, 31(1), 77-88. https://doi.org/10.1111/sum.12155

Organic matter in the terrestrial biosphere has a fundamental role in moderating the exchange of CO2 between the atmosphere and the biosphere. One important property of organic matter is its oxidative ratio (OR); that is, the ratio of moles O2 releas... Read More about Estimating the oxidative ratio of UK peats and agricultural soils.

Calluna vulgaris canopy height and blanket peat CO2 flux: Implications for management. (2015)
Journal Article
Dixon, S., Worrall, F., Rowson, J., & Evans, M. (2015). Calluna vulgaris canopy height and blanket peat CO2 flux: Implications for management. Ecological Engineering, 75, 497-505. https://doi.org/10.1016/j.ecoleng.2014.11.047

This study seeks to investigate the role of Calluna vulgaris canopy height in the CO2 balance of ombrotrophic peatlands to address what implications this relationship may have for management of these peatlands for maximal carbon storage. This study u... Read More about Calluna vulgaris canopy height and blanket peat CO2 flux: Implications for management..

Evidence for nitrogen accumulation: the total nitrogen budget of the terrestrial biosphere of a lowland agricultural catchment (2015)
Journal Article
Worrall, F., Howden, N., & Burt, T. (2015). Evidence for nitrogen accumulation: the total nitrogen budget of the terrestrial biosphere of a lowland agricultural catchment. Biogeochemistry, 123(3), 411-428. https://doi.org/10.1007/s10533-015-0074-7

Several national-scale studies have shown that reactive N is accumulating in developed countries even when only the terrestrial biosphere is considered. However, none of these studies was able to consider the total N budget and so any discrepancy in... Read More about Evidence for nitrogen accumulation: the total nitrogen budget of the terrestrial biosphere of a lowland agricultural catchment.

A 19-year long energy budget of an upland peat bog, northern England (2015)
Journal Article
Worrall, F., Burt, T., Clay, G., & Moody, C. (2015). A 19-year long energy budget of an upland peat bog, northern England. Journal of Hydrology, 520, 17-29. https://doi.org/10.1016/j.jhydrol.2014.11.019

This study has estimated the long term evaporation record for a peat covered catchment in northern England. In this study, 19 years of daily evaporation were estimated for rain-free periods using White’s methods. Net radiation was measured over the s... Read More about A 19-year long energy budget of an upland peat bog, northern England.

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