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Scientists join forces with farmers, communities and local authorities in major flood mitigation research project – University of Reading

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Scientists join forces with farmers, communities and local authorities in major flood mitigation research project

Release Date 02 November 2017

Making changes to land management could help reduce river flooding

Choosing different crops, building soil organic matter and planting more trees could allow farmers to reduce the risk of nearby rivers from bursting their banks miles downstream, according to an innovative new research project.

Researchers in a collaborative project led by the University of Reading will work with farmers, advisors, communities and local authorities across the West Thames area to learn how different land management methods impact on flood risk.

The LANDWISE (LAND management in loWland catchments for Integrated flood riSk rEduction) proposal is one of three projects funded under the Natural Environment Research Council (NERC)’s £4m Understanding the Effectiveness of Natural Flood Management (NFM) programme, and will receive £1.25m.

"This is about making small changes over the large catchment area as a whole, rather than large changes in small areas where flooding occurs" - Dr Joanna Clark, University of Reading

Slow the flow

A lot of attention recently has been given to ‘slowing the flow’ within river channels using wood to create leaky barriers. LANDWISE aims to look at the wider landscape and investigate ways to reduce the volume of water entering river channels in the first place, and to ‘slow the flow’ by enabling water to move slowly below the ground surface. This can be done by increasing the amount of water that can be absorbed by soil and returned to atmosphere through crops and trees, or stored in deep groundwater.

These more natural methods, including crop choice, land preparation, building soil organic matter and tree-planting, can reduce the amount of water that runs off the land surface. They improve soil structure to allow more rainwater to infiltrate below ground.

Dr Joanna Clark, Associate Professor of Environmental Science at the University of Reading, and project lead, said: “If you think about the land surface as a bucket, then these different land use and management methods can help us to increase the size of that bucket and help to empty it so that it can hold more water when it rains again. This is about making small changes over the large catchment area as a whole, rather than large changes in small areas where flooding occurs.

“The views, experience and knowledge of farmers, landowners and communities are often overlooked during research that heavily affects them. The LANDWISE project is built upon the innovative practices that are currently ongoing within the West Thames area. We found there are many farmers who have already made responsible changes to their land management practices that have the potential to reduce flooding, and others could be further incentivised by changes in agricultural policy.

“More work is now needed to fully understand how effective current efforts made by farmers to rebuild soils have been to reduce flooding - the LANDWISE project will quantify by how much, where and how the flood risk benefits are scaled up from small catchment to large river basins, like West Thames. To do this, we will work on developing methods to measure the land surface from space and use of this data in predictive models alongside local knowledge. We are proud to have been awarded a share of funding that will shed light on how we can reduce the impact of flooding by dealing with the sources of runoff rather than the downstream effect.”

Flooding risk

The LANDWISE research focuses on the West Thames River Basin area, where around 112,000 properties are thought to be at risk of flooding if rivers burst their banks, almost 10,000 are at risk of groundwater flooding, and many more are in danger of surface water flooding. Work will initially focus on the Loddon, Pang and Upper Thames catchments, before being scaled up to the Thames river basin upstream from Oxford and Maidenhead. The project will explore whether broad scale changes in land use and management could have helped to reduce the severity of flooding events of July 2007 and winter 2013/14.

Following the successful NERC funding bid, the team will gather data to test how effective these measures are for small to large flood events and from local to large river basin scale. They will bring together local knowledge on current land management methods, record how they impact water infiltration and storage below ground using field measurement and new satellite technology, and run modelling experiments based on the data collected and local knowledge.

“We are all too aware of the risk of flooding to people, infrastructure and businesses in the Thames Valley" - Professor Robert Van de Noort, University of Reading and Thames Regional Flood and Coastal Committee

A new, easy-to-use, interactive online data visualisation tool will be developed to help everyone in the team evaluate data sources effectively. This work will be supported by workshops and further field visits, working together with farmers, communities and local authorities. The team will aim to find realistic opportunities for future Government policy on land use and management changes after Britain leaves the EU. NFM measures could also improve water quality, biodiversity and sustainable food production.

The scientists will also carry out further study into the potential risk of more flooding that could be caused by increased infiltration and storage of water in deep groundwater if it results in higher groundwater levels.

NFM projects led by the University of Manchester and the University of Lancaster were also granted NERC funding.

Professor Robert Van de Noort, University of Reading Pro-Vice-Chancellor for Academic Planning & Resource and Chair of the Thames Regional Flood and Coastal Committee, said: “We are all too aware of the risk of flooding to people, infrastructure and businesses in the Thames Valley and invest significant amounts of money to reduce this flood risk. Natural flood management is a critical part of this work. The LANDWISE project will give us urgently-needed evidence of the effectiveness of natural flood management that will provide us with the confidence to work more with nature.”

Christopher Short, of the Countryside and Community Research Institute at the University of Gloucestershire and chair of the Upper Thames Catchment Partnership, said: “We are particularly delighted that this project has secured funding as it recognises the strength of the partnership in the Upper Thames involving a wide range of stakeholders all of whom have something to contribute to the long-term management of the catchment.  Their knowledge and experiences will be key to the successful delivery of the project and we look forward to working with them.”


NERC’s Understanding the Effectiveness of NFM is a four-year program in which NERC aims to fund the novel environmental science to improve understanding of the suitability and effectiveness of different Natural Flood Management measures for a range of flood risk scenarios. The two other projects funded under this programme are led by the University of Lancaster and University of Manchester.  NFM measures have the potential to provide environmentally sensitive approaches to minimising flood risk, reducing flood risk in areas where hard flood defences are not feasible, and to increase the lifespan of existing flood defences. A total of 12 invited full research project submissions were made by UK institutions to NERC’s NFM funding program, before being internationally peer-reviewed and assessed by an independent panel, following an initial outline bid stage.

Other collaborating institutions in the LANDWISE project are British Geological Survey, Centre for Ecology & Hydrology, University of Gloucestershire, Institute for Environmental Analytics, Forest Research, JBA Consulting, CGI IT UK, Environment Agency, Defra, Natural England, JBA Trust, Farmer Guardians of the Upper Thames, University of Sheffield, Forestry Commission, Agrimetrics, National Farmers Union, The National Trust, Affinity Water, National Flood Forum, Loddon Valley Residents Association, Swallowfield Flood Resilience Group, Pang Valley Flood Forum, Arcadian Ecology & Consulting, Farm and Wildlife Advisory Group (SE), Farm and Wildlife Advisory Group (SW), Wilts Soil and Root Innovators, Penn Croft Farm, Hendred Farm Partnership, Fincham Farm Partnership, Kingsclere Estate, Loddon Fisheries & Conservation Consultative, Blackwater Valley Countryside Partnership, Wild Oxfordshire, Foundation for Water Research, Action for River Kennet, Hampshire and Isle of Wight Wildlife Trust, South East Rivers Trust, Freshwater Habitats Trust, Westcountry Rivers Trust, Wokingham Borough Council, West Berkshire Council, Hart District Council, Swindon Borough Council and the Thames Regional Flood & Coastal Committee.

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