A5078679922- Soil and Water Nutrient Dynamics
- Hydrology and Watershed Management Studies
- Phosphorus and nutrient management
- Soil erosion and sediment transport
- Soil Carbon and Nitrogen Dynamics
- Constructed Wetlands for Wastewater Treatment
- Environmental Sustainability in Business
- Sustainable Supply Chain Management
- Wastewater Treatment and Nitrogen Removal
- Fractional Differential Equations Solutions
- Nanofluid Flow and Heat Transfer
- Groundwater and Isotope Geochemistry
- Lattice Boltzmann Simulation Studies
- Groundwater flow and contamination studies
- Agriculture Sustainability and Environmental Impact
- Hydrology and Sediment Transport Processes
- Sustainable Industrial Ecology
- Wastewater Treatment and Reuse
- Parathyroid Disorders and Treatments
Lancaster University
2016-2022
Phosphorus losses from land to water will be impacted by climate change and management for food production, with detrimental impacts on aquatic ecosystems. Here we use a unique combination of methods evaluate the impact projected future phosphorus transfers, assess what scale agricultural would needed mitigate these transfers. We combine novel high-frequency flux data three representative catchments across UK, new high-spatial resolution model, uncertainty estimates an ensemble simulations,...
We hypothesise that climate change, together with intensive agricultural systems, will increase the transfer of pollutants from land to water and impact on stream health. This study builds, for first time, an integrated assessment nutrient transfers, bringing a) high-frequency data outlets two surface water-dominated, headwater (~ 10 km2) catchments, b) event-by-event analysis c) concentration duration curves comparison EU Water Framework Directive quality targets, d) event...
There is a need to model and predict the transfer of phosphorus (P) from land water, but this challenging because large number complex physical biogeochemical processes involved. This study presents, for first time, 'limits acceptability' approach Generalized Likelihood Uncertainty Estimation (GLUE) framework Soil Water Assessment Tool (SWAT), in an application water quality problem Newby Beck catchment (12.5 km2), Cumbria, United Kingdom (UK). Using high frequency outlet data (discharge P),...
Unnecessary accumulation of phosphorus (P) in agricultural soils continues to degrade water quality and linked ecosystem services. Managing both soil loss P fertility status is therefore crucial for eutrophication control, but the relative environmental benefits these two mitigation measures, timescales over which they occur, remain unclear. To support policies toward reduced loadings from soils, we examined impact conservation lowering test (STP) different regions with intensive farming...
Current use and management of phosphorus (P) in our food systems is considered unsustainable considerable improvements the efficiency P are required to mitigate environmental impact poor stewardship. The inherent low production from animals means dominated by livestock agriculture can pose unique challenges for improving management. This paper presents results a substance flow analysis Northern Ireland (NI) system year 2017 as case study examining stewardship agricultural system. Imported...
Core Ideas Climate change effects on the P transfer continuum are examined. export and eutrophication will likely increase under a changing climate. catchment processing complex poorly understood. Modeling of flows buffering is needed to inform management. Research should consider climate each tier continuum. Phosphorus inputs agriculture their fate in environment contribute poor water quality degradation linked ecosystem services at great cost society. alter forms timings fluxes from land...
Mass transport, such as movement of phosphorus in soils and solutes rivers, is a natural phenomenon its study plays an important role science engineering. It found that there are numerous practical diffusion phenomena do not obey the classical advection-diffusion equation (ADE). Such called abnormal or superdiffusion, it well described using fractional (FADE). The FADE finds wide range applications various areas with great potential for studying complex mass transport real hydrological...
The “circular economy” is an increasingly influential concept linking economic and environmental policy to enable sustainable use of resources. A crucial although often overlooked element this a circular nutrient economy, which economy that achieves the minimization losses during production, processing, distribution, consumption food other products, as well comprehensive recovery nutrients from organic residuals at each these stages for reuse in agricultural production. There are multiple...
Abstract River discharge and nutrient measurements are subject to aleatory epistemic uncertainties. In this study, we present a novel method for estimating these uncertainties in colocated phosphorus (P) measurements. The “voting point”‐based constrains the derived stage‐discharge rating curve both on fit available gaugings catchment water balance. This helps reduce uncertainty beyond range of during out bank situations. example presented here, top 5% flows, shown be 139% using traditional...
Climate projections for the future indicate that United Kingdom will experience hotter, drier summers and warmer, wetter winters, bringing longer dry periods followed by rewetting. This result in changes phosphorus (P) mobilization patterns influence transfer of P from land to water. We tested hypothesis drying–rewetting affect amount soluble reactive (SRP) solubilized soil. Estimations period characteristics (duration temperature) under current predicted climate were determined using data...
The UK food system is reliant on imported phosphorus (P) to meet production demand, though inefficient use and poor stewardship means P currently accumulating in agricultural soils, wasted or lost with detrimental impacts aquatic environments. This study presents the results of a detailed Substance Flow Analysis for 2018, developed collaboration industry government, key objective highlighting priority areas interventions improve sustainability resilience system. In 2018 174.6 Gg P, producing...
Abstract Global food production and current reliance on meat-based diets requires a large share of natural resource use causes widespread environmental pollution including phosphorus (P). Transitions to less animal-intensive address suite sustainability goals, but their impact society’s wastewater P burden is unclear. Using the UK as our example, we explored historical diet changes between 1942 2016, how shifting towards plant-based might entering treatment works (WWTW), subsequent effluent...
Abstract. Excess nutrients in surface waters, such as phosphorus (P) from agriculture, result poor water quality, with adverse effects on ecological health and costs for remediation. However, understanding prediction of P transfers catchments have been limited by inadequate data over-parameterised models high uncertainty. We show that, temporal resolution data, we are able to identify simple dynamic that capture the load dynamics three contrasting agricultural UK. For a flashy catchment,...
Phosphorus (P) is a critical natural resource for food production, but one that subject to global supply vulnerabilities. P also responsible endemic eutrophication in waterbodies due poor stewardship the chain. Catchments are social-ecologically bounded systems use agriculture and water management. Stakeholders, such as farmers, sewerage service companies, local authorities, environmental organisations mediate catchment adaptive capacity risks pollution waterbodies. Adaptive at this level...
Abstract. Excess nutrients in surface waters, such as phosphorus (P) from agriculture, result poor water quality, with adverse effects on ecological health and costs for remediation. However, understanding prediction of P transfers catchments have been limited by inadequate data over-parameterised models high uncertainty. We show that, temporal resolution data, we are able to identify simple dynamic that capture the load dynamics three contrasting agricultural UK. For a flashy catchment,...