Search Results - "Withers, P.J.A"

Use of commercial bio-inoculants to increase agricultural production through improved phosphrous acquisition by Owen, D., Williams, A.P., Griffith, G.W., Withers, P.J.A.

“…•We review the use of commercial bio-inoculants to increase plant uptake of phosphorus.•We examine microorganisms found within such bio-inoculants and their…”
Get full text

Delivery and cycling of phosphorus in rivers: A review by Withers, P.J.A., Jarvie, H.P.

“…Phosphorus (P) supply (concentration and flux) is an important driver for biological activity in flowing waters and needs to be managed to avoid eutrophication…”
Get full text

Quantifying the impact of septic tank systems on eutrophication risk in rural headwaters by Withers, P.J.A., Jarvie, H.P., Stoate, C.

“…Septic tank systems (STS) are a potential source of nutrient emissions to surface waters but few data exist in the UK to quantify their significance for…”
Get full text

Assessing the effectiveness of actions to mitigate nutrient loss from agriculture: A review of methods by Cherry, K.A., Shepherd, M., Withers, P.J.A., Mooney, S.J.

“…Diffuse nutrient loss from agriculture is degrading surface and groundwater quality throughout Europe, leaving water bodies at risk of not reaching targets set…”
Get full text

Streamwater phosphorus and nitrogen across a gradient in rural–agricultural land use intensity by Jarvie, H.P., Withers, P.J.A., Bowes, M.J., Palmer-Felgate, E.J., Harper, D.M., Wasiak, K., Wasiak, P., Hodgkinson, R.A., Bates, A., Stoate, C., Neal, M., Wickham, H.D., Harman, S.A., Armstrong, L.K.

“…This paper provides an overview of the impacts of rural land use on lowland streamwater phosphorus (P) and nitrogen (N) concentrations and P loads and sources…”
Get full text

Nutrient emissions to water from septic tank systems in rural catchments: Uncertainties and implications for policy by Withers, P.J.A., May, L., Jarvie, H.P., Jordan, P., Doody, D., Foy, R.H., Bechmann, M., Cooksley, S., Dils, R., Deal, N.

“…► A significant proportion of the nutrient loads to rural headwaters is coming from septic tank systems. ► The location of most septic tanks is not known due…”
Get full text

Climate change and coupling of macronutrient cycles along the atmospheric, terrestrial, freshwater and estuarine continuum by Jarvie, H.P., Jickells, T.D., Skeffington, R.A., Withers, P.J.A.

“…This paper provides an introduction to the Special Issue on “Climate Change and Coupling of Macronutrient Cycles along the Atmospheric, Terrestrial, Freshwater…”
Get full text

The effect of farming practices on phosphorus transfer to a headwater stream in England by Withers, P.J.A., Hodgkinson, R.A.

“…Characterization of phosphorus (P) sources in catchments is critical to the restoration of stream integrity following eutrophication. To better understand the…”
Get full text

Controlling sediment and phosphorus transfer to receiving waters – A strategic management perspective for England and Wales by Mainstone, C.P., Dils, R.M., Withers, P.J.A.

“…The adverse ecological effects of elevated levels of phosphorus (P) and fine sediment (termed silt) in surface waters are a major environmental issue both…”
Get full text

Soil cultivation effects on sediment and phosphorus mobilization in surface runoff from three contrasting soil types in England by Withers, P.J.A., Hodgkinson, R.A., Bates, A., Withers, C.L.

“…To encourage the adoption of best management practices in a priority catchment (Hampshire Avon) in south-west England suffering from diffuse pollution, field…”
Get full text

Phosphorus cycling in UK agriculture and implications for phosphorus loss from soil by WITHERS, P. J. A, EDWARDS, A. C, FOY, R. H

“…The current balance of phosphorus (P) used in U.K. agriculture (productive grassland and arable land) and trends in P use since 1935 are reviewed. The…”
Get full text

Characterization and apportionment of nutrient and sediment sources in catchments by Withers, P.J.A., Sharpley, A.N.

Get full text

Balancing macronutrient stoichiometry to alleviate eutrophication by Stutter, M.I., Graeber, D., Evans, C.D., Wade, A.J., Withers, P.J.A.

“…Reactive nitrogen (N) and phosphorus (P) inputs to surface waters modify aquatic environments, affect public health and recreation. Source controls dominate…”
Get full text

Sediment and phosphorus transfer in overland flow from a maize field receiving manure by Withers, P.J.A, Bailey, G.A

“…The transfer of suspended sediment (SS) and phosphorus (P) in overland flow from 30 m2 field plots receiving either nil, surface-applied or incorporated manure…”
Get full text

Managing phosphorus input pressures for improving water quality at the catchment scale by Withers, P.J.A., Rothwell, S.A., Ross, K.J.

“…Phosphorus (P) pollution of freshwater is an endemic threat to water quality and aquatic biodiversity. To better define the contributions of the two main food…”
Get full text

Stewardship to tackle global phosphorus inefficiency: The case of Europe by Withers, Paul J. A., van Dijk, Kimo C., Neset, Tina-Simone S., Nesme, Thomas, Oenema, Oene, Rubæk, Gitte H., Schoumans, Oscar F., Smit, Bert, Pellerin, Sylvain

“…The inefficient use of phosphorus (P) in the food chain is a threat to the global aquatic environment and the health and well-being of citizens, and it is…”
Get full text

Phosphorus stocks and flows in an intensive livestock dominated food system by Rothwell, S.A., Doody, D.G., Johnston, C., Forber, K.J., Cencic, O., Rechberger, H., Withers, P.J.A.

“…Current use and management of phosphorus (P) in our food systems is considered unsustainable and considerable improvements in the efficiency of P use are…”
Get full text

Transport and delivery of suspended solids, nitrogen and phosphorus from various sources to freshwaters in the UK by Edwards, A.C., Withers, P.J.A.

“…Sources of nutrients and suspended solids (SS) are diverse in origin and dynamic with respect to their transport pathways and delivery to surface and…”
Get full text

Changing climate and nutrient transfers: Evidence from high temporal resolution concentration-flow dynamics in headwater catchments by Ockenden, M.C., Deasy, C.E., Benskin, C.McW.H., Beven, K.J., Burke, S., Collins, A.L., Evans, R., Falloon, P.D., Forber, K.J., Hiscock, K.M., Hollaway, M.J., Kahana, R., Macleod, C.J.A., Reaney, S.M., Snell, M.A., Villamizar, M.L., Wearing, C., Withers, P.J.A., Zhou, J.G., Haygarth, P.M.

“…We hypothesise that climate change, together with intensive agricultural systems, will increase the transfer of pollutants from land to water and impact on…”
Get full text

The challenges of modelling phosphorus in a headwater catchment: Applying a ‘limits of acceptability’ uncertainty framework to a water quality model by Hollaway, M.J., Beven, K.J., Benskin, C.McW.H., Collins, A.L., Evans, R., Falloon, P.D., Forber, K.J., Hiscock, K.M., Kahana, R., Macleod, C.J.A., Ockenden, M.C., Villamizar, M.L., Wearing, C., Withers, P.J.A., Zhou, J.G., Barber, N.J., Haygarth, P.M.

“…•This limits of acceptability approach is applied for the first time to the SWAT model.•Identifies exact time steps of poor performance during…”
Get full text