Summary of the impact

Under future climates, wildfire will exacerbate threats to water security. Our research demonstrates that burning of surface vegetation can invigorate hillslope hydrological response with marked increases in sediment and nutrient delivery to river networks and reservoirs. Negative water quality effects include high turbidity, toxic algal blooms and fish kills with implications for water supply at critical times in the water year. Through quantifying post-fire runoff and nutrient yield processes, the research has informed (i) catchment management decisions, policies and water resource risk assessment in Australia and (ii) water industry resource protection plans in the UK.

Summary of the impact

Research undertaken by Professor Phil Jordan on nutrient pollution from land to waters has led to significant changes in government policy and in expectations for Water Framework Directive (WFD) and Waste Directive (WD) compliance in Ireland. The WFD is European wide legislation requiring that all water-bodies should be of at least good ecological status by 2015. His research has provided unequivocal scientific evidence that bio-physical lag times preclude the achievement of WFD water quality targets from diffuse source pollution by 2015. This has led to targets for good water quality in all River Basin Management Plans being extended without threat of European fines. Further, inclusion of Jordan's research on the specific environmental risk of rural point source pollution in assessments of septic tank system risk has resulted in the overturning of a European Court ruling under the Waste Directive, and the consequent lifting of daily fines of €19,000.

Summary of the impact

Impact of peat research at NTU comprises:

• Conservation of peatland habitats
• Sustainable quantity and quality of water resources
• Development of alternative growing media

Research on peatland hydrology and erosion has been used by stakeholders including Defra, International Union for the Conservation of Nature (IUCN), Natural England, Scottish Natural Heritage, Moors for the Future, RSPB, water companies, horticultural peat producers and Environment Agency to improve policy and practice in the management of peatland habitats. Research into alternative growing media for use in horticulture, pioneered by Carlile in conjunction with William Sinclair Horticulture, contributed to development of market-leading brand New Horizon.

Summary of the impact

Current Defra policy on river catchment management has been informed by our interdisciplinary research over a 10-year period, much of it addressing the challenges posed by the EU Water Framework Directive. Outcomes from our research are reflected in the policies proposed in the 2011 Water for Life White Paper and also in the multi-million pound investment plans of water companies. We have also influenced a whole-community framework for catchment management in the UK that was piloted in 2011 and has now been extended to 100 catchments across England.

Summary of the impact

Research and knowledge exchange led by Prof. Jefferies in sustainable urban drainage systems (SUDS) has driven the design and integration of SUDS into urban environments, into urban planning and everyday practice in the UK, Europe and worldwide. This research has contributed to the development of policies and established guidelines that have informed the set-up of operational and monitoring systems and the reduction of a training manual which is impacting widely on the sector (downloaded >40.000 times). Evidence gathered through this research has supported drainage policy nationally and now underpins important parts of urban infrastructure, improving environments and their resilience to flooding.

Summary of the impact

In 2008-2009 the UK was subject to legal infraction proceedings at the European Court of Justice (ECJ) for allegedly failing to implement the European Union's Urban Waste-water Treatment Directive (UWWTD). Research by the Institute of Estuarine and Coastal Studies, Hull (IECS) for the Environment Agency (EA)/Defra provided evidence to the UK Government for its defence against these allegations. The research consisted of:

- literature/data reviews and collection and analysis of critical evidence from the Humber.

- co-ordinating workshops and convening an expert panel of sufficient authoritative academic opinion to counteract the European Court of Justice allegations.

In December 2009 the European Court of Justice ruled in favour of the UK. Our research therefore helped to save very significant, unnecessary capital investment in nutrient removal technology for sewage treatment nationally and in the Yorkshire and Humber region especially. The UK government thus avoided the possibility of major European Commission fines of up to €703,000 per day, or €256m per annum, for infraction of the Urban Water-water Treatment Directive [1].

Summary of the impact

For over 40 years, the Urban Pollution Research Centre has undertaken pioneering work in understanding the sources, behaviour and fate of urban diffuse pollution and its mitigation using sustainable urban drainage systems (SUDS). Relevant impacts claimed here include the adoption of SUDS into UK practice and legislation, the role of SUDS as key components in achieving EU Water Framework Directive (WFD) requirements and the embedding of our research within national best practice guidelines. In response to recent policy drivers, we are collaborating with Arup to commercialise SUDSloc and are informing policy developments in the fields of diffuse pollution mitigation and urban ecosystem services.

Summary of the impact

Wildfires can reduce the wettability of soil (i.e. increase their water repellency), accelerating runoff and erosion that in turn can cause flooding, landslides and aquifer contamination. Our research has revealed a link between fire severity and soil wettability that has led to substantial changes in the policy for mandatory post-fire assessments by the United States Forest Service (USFS). Implemented in 2011, these changes have resulted in improved land-rehabilitation practice in the USA. Moreover, this practice is being increasingly applied elsewhere, including Canada, Australia and parts of Europe, all of which now include specific consideration of soil wettability following severe fires and are underpinned by the methodology we developed. Based on these assessments, landscape-rehabilitation is applied at high-risk areas following wildfires, to limit the threats to life, property, infrastructure and ecosystem quality arising from excessive runoff and erosion. In the USA, for example, ~1.3 million hectares of burned land have been assessed in 2012 using the new post-fire assessment guidelines.

Summary of the impact

Research to quantify the ecological structure and spatial dynamics of terrestrial habitats in Northern Ireland (NI), and to assess the effects of recent land use change, has enabled the Northern Ireland Environment Agency (NIEA) to develop and implement a science-based strategy for landscape-scale biodiversity management and conservation. It has directly facilitated the integration of NIEA and the Department of Agriculture for NI (DARD) biodiversity management strategies and their monitoring of the implementation of European Community biodiversity legislation (and cross-compliance).

The science information-base and time-series change models developed from the research have allowed NIEA to lead inter-governmental department discussion on biodiversity and land use issues. It has also guided the development of an NI habitat biodiversity management strategy. Specifically, the statistically structured field and analytical methods developed by the research for assessing terrestrial habitats at the regional landscape-scale have been adopted by NIEA as key to reporting on the biodiversity outcomes of implementing the European Community conservation Habitats Directive.

The research has provided a common ecological framework within which NIEA, DARD (including Forest Service) and non-government organisations (Ulster Wildlife Trust and Northern Ireland Environment Link) have been able to discuss and agree on biodiversity and agri-environment management practices in designated statutory conservation sites and the farmed countryside. It has also been key in guiding a NI assessment of the socio-economic value of habitats (ecosystem services).

Summary of the impact

Research by Rowan and ERG colleagues Black, Bragg, Cutler, Duck has addressed the science and policy challenges faced by statutory authorities meeting their duty to implement the EU Water Framework Directive (WFD) 2000. Assessing the sensitivity of aquatic systems to physical, chemical and biological pressures is the central theme, and through a series of commissioned projects funded by UK environment and conservation agencies, the research has:

• Developed new assessment tools used by statutory regulators to characterise the degree of flow alteration and physical modification to rivers and lakes;
• Developed the lake habitat survey (LHS) method, complete with accreditation programme, incorporated as best-practice in a CEN European Guidance Standard;
• Been translated directly into legally-binding and currently used environmental standards across the UK and Ireland (through new enabling legislation);
• Informed regulatory practices across Europe, particularly in Italy, Poland, France, Norway, Serbia and Montenegro.