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You searched for: Subject term England Remove constraint Subject term: England Subject term biogeochemistry Remove constraint Subject term: biogeochemistry
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1. Biological and anthropogenic predictors of metal concentration in the Eurasian otter, a sentinel of freshwater ecosystems

Author:
Anne-Fleur Brand; Juliet Hynes; Lee A. Walker; M. Glόria Pereira; Alan J. Lawlor; Richard J. Williams; Richard F. Shore; Elizabeth A. Chadwick
Source:
Environmental pollution 2020 v.266 pp. 115280
ISSN:
0269-7491
Subject:
Lutra lutra; biogeochemistry; body condition; cadmium; calcium oxide; chromium; freshwater; habitats; human population; lead; liver; mercury; nanosilver; nickel; pH; population density; rain; sediments; silver; soil; temporal variation; toxicity; water pollution; England; Wales
Abstract:
... Toxic metals have been linked to a range of adverse health effects in freshwater organisms. However, for higher vertebrates, there is little understanding of the large-scale drivers of exposure. We quantified toxic metal/semi-metal concentrations in a sentinel freshwater top predator, the Eurasian otter (Lutra lutra), across England and Wales, and determined how this varied with key natural and an ...
DOI:
10.1016/j.envpol.2020.115280

2. The fluvial flux of total reactive and total phosphorus from the UK in the context of a national phosphorus budget: comparing UK river fluxes with phosphorus trade imports and exports

Author:
Fred Worrall; Helen P. Jarvie; Nicholas J. K. Howden; Tim P. Burt
Source:
Biogeochemistry 2016 v.130 no.1-2 pp. 31-51
ISSN:
0168-2563
Subject:
agricultural land; biogeochemistry; data collection; databases; feeds; fertilizers; food waste; land use; landfills; phosphorus; river water; rivers; sewage; sewage sludge; soil; urban areas; wastewater; wastewater treatment; water quality; watersheds; England; Scotland; Wales
Abstract:
... A national river water quality database of total reactive phosphorus (TRP) and total phosphorus (TP) and flow was used, together with catchment characteristic datasets (soils, land use and hydroclimatic properties), to derive national fluvial phosphorus (P) flux estimates for Great Britain (England, Wales and Scotland) from 1974 to 2012. These fluvial P fluxes were compared with P imports and expo ...
DOI:
10.1007/s10533-016-0238-0

3. A method of estimating in-stream residence time of water in rivers

Author:
F. Worrall; N.J.K. Howden; T.P. Burt
Source:
Journal of hydrology 2014 v.512 pp. 274-284
ISSN:
0022-1694
Subject:
basins; biogeochemistry; carbon; equations; monitoring; rain; river water; rivers; watersheds; England
Abstract:
... This study develops a method for estimating the average in-stream residence time of water in a river channel and across large catchments, i.e. the time between water entering a river and reaching a downstream monitoring point. The methodology uses river flow gauging data to integrate Manning’s equation along a length of channel for different percentile flows. The method was developed and tested fo ...
DOI:
10.1016/j.jhydrol.2014.02.050

4. Effects of roads on adjacent plant community composition and ecosystem function: An example from three calcareous ecosystems

Author:
Mark A. Lee; Linda Davies; Sally A. Power
Source:
Environmental pollution 2012 v.163 no. pp. 273-280
ISSN:
0269-7491
Subject:
biogeochemistry; botanical composition; ecosystems; emissions; foliar uptake; forbs; grasses; grasslands; heavy metals; issues and policy; mosses and liverworts; nitrogen; nitrogen dioxide; pH; plant communities; roads; soil water; traffic; England
Abstract:
... Roads and exhaust emissions can affect plant communities directly, for example via direct foliar uptake of exhaust products, or indirectly via changes to soil biogeochemistry and hydrology. A transect study adjacent to roads of different traffic densities was carried out at three species-rich calcareous grasslands in south eastern England. Measured annual NO₂ concentrations and modelled NH₃ concen ...
DOI:
10.1016/j.envpol.2011.12.038
PubMed:
22285802

5. Changes in water colour between 1986 and 2006 in the headwaters of the River Nidd, Yorkshire, UK

Author:
Chapman, Pippa J.; McDonald, Adrian T.; Tyson, Rosa; Palmer, Sheila M.; Mitchell, Gordon; Irvine, Brian
Source:
Biogeochemistry 2010 v.101 no.1-3 pp. 281-294
ISSN:
0168-2563
Subject:
adsorption; biogeochemistry; color; dissolved organic carbon; hydrochemistry; mineral soils; pH; peat; rivers; runoff; silicon; soil horizons; statistical analysis; subwatersheds; sulfur; temporal variation; England
Abstract:
... This study compares the spatial and temporal variability of water colour for fifteen sub-catchments of the River Nidd, northeast England, in 1986 and 2006/2007. Between 1986 and 2006/2007, mean annual water colour increased in all the sub-catchments. However, there was considerable variation in the increase, which ranged from 22 to 155%. Statistical analysis revealed that the sub-catchments could ...
DOI:
10.1007/s10533-010-9474-x

6. Sources and ages of dissolved organic matter in peatland streams: evidence from chemistry mixture modelling and radiocarbon data

Author:
Tipping, E.; Billett, M. F.; Bryant, C. L.; Buckingham, S.; Thacker, S. A.
Source:
Biogeochemistry 2010 v.100 no.1-3 pp. 121-137
ISSN:
0168-2563
Subject:
peat; radionuclides; winter; mixing; monitoring; calcium; models; peatlands; clay; spring; streams; dissolved organic carbon; biogeochemistry; groundwater; England
Abstract:
... Monitoring data over the period 1994-2007 were analysed for three streams (Cottage Hill Sike, CHS; Rough Sike, RS; Trout Beck, TB) draining blanket peat underlain by glacial clay and limestone-rich sub-strata at Moor House (Northern England). Dissolved organic carbon concentration, [DOC], showed complex relationships with both discharge and calcium concentration, [Ca]. A model based on [Ca] was co ...
DOI:
10.1007/s10533-010-9409-6

7. Historical storage budgets of organic carbon, nutrient and contaminant elements in saltmarsh sediments: Biogeochemical context for managed realignment, Humber Estuary, UK

Author:
Andrews, J.E.; Samways, G.; Shimmield, G.B.
Source:
Science of the total environment 2008 v.405 no.1-3 pp. 1-13
ISSN:
0048-9697
Subject:
salt marshes; estuaries; sediments; biogeochemistry; sediment contamination; metals; carbon; vegetation; nitrogen; phosphorus; England
Abstract:
... Biogeochemical data from Welwick marsh (Humber Estuary, UK), an actively accreting saltmarsh, provides a decadal-centennial-scale natural analogue for likely future biogeochemical storage effects of managed realignment sites accreting either intertidal muds or saltmarsh. Marsh topographic profiles and progradation history from aerial photographs were combined with ¹³⁷Cs and niobium contamination h ...
DOI:
10.1016/j.scitotenv.2008.07.044
PubMed:
18762324

8. Nutrient dynamics in relation to surface-subsurface hydrological exchange in a groundwater fed Chalk stream

Author:
Pretty, J.L.; Hildrew, A.G.; Trimmer, M.
Source:
Journal of hydrology 2006 v.330 no.1-2 pp. 84-100
ISSN:
0022-1694
Subject:
mineralization; nitrate reduction; nutrients; streams; aquifers; watershed hydrology; biogeochemistry; hydrochemistry; bacteria; nitrous oxide; England
Abstract:
... Mini-piezometers were used to assess surface-subsurface hydrological exchange and biogeochemical processing in different patches on the river bed (coarse gravel, fine gravel/sand, silt/sand) at two sites on the River Lambourn (Berkshire, UK). Positive vertical hydraulic gradients (VHG) dominated the riverbed, indicating potentially upwelling subsurface water. Hydraulic conductivity was highly vari ...
DOI:
10.1016/j.jhydrol.2006.04.013