Webinar recordings

You can see details of webinars held to date and access recordings, including recordings available below:

3 December 2020 Q-NFM  Dr Nick Chappell, University of Lancaster

Q-NFM: Measuring NFM effectiveness

You will be able to access a recording of the webinar here soon.

To download the webinar slides click here.

This presentation focused on direct field observations of NFM effectiveness used to constrain catchment-scale modelling in Cumbria, UK. The observations cover enhancement of rates of wet-canopy evaporation, soil infiltration capacity and slope/channel storage associated with NFM-related interventions. Nick explained why such direct field observations are key to scientific credibility; why parallel rainfall and streamflow observations are critical; and how micro-scale field measurements relate to effective parameters needed by models. The ideas and findings arise from a team of investigators and partners working on the NERC Q-NFM project and Environment Agency NFM pilots in Cumbria.

19 November 2020 12:30 – 13:30: Dr Tom Nisbet, Forest Research, Landwise NFM

Woodlands and NFM

You can access a recording of the webinar by clicking here.

To download the webinar slides click here.

Tom talked about how woodlands and their management can affect flooding. He considered the different mechanisms and factors involved, the magnitude of the woodland effect, the role of opportunity mapping and the valuation of the woodland flood regulation service. Tom concluded by describing a planned new Forestry Commission Practice Guide on designing and managing forests to reduce flood risk.

Tom works for Forest Research and leads the Physical Environment Research Group. He has over 30 years of experience in forest hydrology and applied catchment management, including leading the Slowing the Flow at Pickering NFM project. His team have been at the forefront of evaluating the contribution of forestry to NFM, with results directly informing forest policy and practice.

22 October 2020 12:30 – 1:30: Katharina Bauer, South East Rivers Trust

Monitoring infiltration and retention to support assessment of Ecosystem Services

You can access the webinar recording by clicking here.

To download the webinar slides click here.

Images from South East Rivers Trust

Katharina talked about the PROWATER project which is generally focused on building a structure for a Payments for Ecosystem Services scheme to implement ecosystem-based adaptation measures for water scarcity and create resilience to extreme weather events such as drought and flooding. The Trust is working on three pilot areas in Kent and East Sussex, two of them chalk aquifer catchments and one a (clay) surface water catchment. An important part of the work is the more conceptual element of creating a collective long-term vision on implementation of Ecosystem-based Adaptation (EbA) measures and a framework on which a ‘Payment for Ecosystem Services’ scheme can be made operational.

22 September 2020 12:30 – 13:30: Chris Uttley, Senior Advisor Flood and Coastal Risk Management, Environment Agency

You can access the webinar recording by clicking here.

Presentation slides are available here.

The Environment Agency’s NFM work and view on NFM in Environmental Land Management Schemes (ELMS)


Chris talked about how NFM is currently being implemented by the Environment Agency with case studies including work at Stroud.  He also talked about how the Agency sees NFM links and opportunities with the ELMS which will replace the Common Agricultural Policy, the EU subsidy scheme.   ELMs will support delivery of the DEFRA 25 year Environment Plan and will come into force in 2024.

20 August 2020 12:30 – 13:30: Dr Salim Goudarzi & Dr David Milledge University of Newcastle, Protect-NFM

Quantifying the impact of blanket peat re-vegetation & gully blocking in terms of their NFM potential

You can access a recording of the webinar here or by clicking on the image below.

To download the webinar slides click here.  A poster explaining the work is available here.

This webinar explored, using numerical modelling in conjunction with existing Before-After-Control-Intervention experimental data, the impact of NFM practices on catchment functions. For example, does re-vegetation reduce peak discharge primarily by increasing evapo-transpiration and thus reducing runoff generation; or by increasing roughness and thus attenuating overland flow? Does gully blocking reduce peak flow primarily by increasing the water available for evapo-transpiration or by reducing the flow velocity? Understanding how these changes work is desirable because it: (1) conditions our expectations for future interventions; (2) guides future decision making and implementation.

16 July  2020 12:30 – 13:30 Professor Tim Allott and Dr Emma Shuttleworth, University of Manchester, Protect NFM

Peatland Catchments and Natural Flood Management

You can access a recording of the webinar here or by clicking on the image below.  Presentation slides are available here.

Peatlands cover nearly 10% of the UK’s land cover but few of our peatlands are in a near-natural state.  Most have been damaged by drainage, air pollution, fire, erosion and other land-use pressures, and the last decade has seen a dramatic increase in the number of projects aiming to restore peatland landscapes. Many communities at risk of flooding have peatlands in their upstream catchments, and peatland restoration is increasingly linked to flood risk reduction.

In this webinar Tim and Emma evaluated the current evidence that restoration of peatlands can reduce the peak flows of rivers and contribute meaningfully to Natural Flood Management. They summarised the findings of a recent report to the International Union for Nature Conservation (IUCN) UK Peatland Programme Commission of Inquiry on Peatlands, work supported by the NERC ‘Protect-NFM’ project.

The talk was based on a report they wrote for the IUCN. The URLs to download this (and the other reports completed for the IUCN commission of Inquiry) are :



25 June 2020 12:30 – 13:30 Dr Jessica Fox, Senior Flood Risk Officer, Hull City Council

Working with natural processes in lowland environments – modelling, mapping, and evaluating

Click here or on the image below to access the recording.

Presentation slides available here.  A transcript of the webinar chat discussion is available here.  Responses to pre-submitted questions here.

Project report and opportunity maps are available for download here: https://catchmentbasedapproach.org/get-involved/hull-east-riding/

A bespoke opportunity map for the Watton sub-catchment

NFM evaluation matrix user interface

This project has sought to understand the impact of implementing NFM measures in different places in a complex lowland area – the River Hull catchment. Jessica talked about the methods used to model the impacts of implementing NFM within upper sub-catchments to calculate reductions in peak flows and time delays to the peak within the River Hull. From the hydrological data, opportunity maps were generated to show the specific location and type of individual NFM intervention used in the modelling. Jessica went on to explain a novel evaluation matrix, which was developed with partners to enable weighting of a number of factors, including ecosystem services, costs and maintenance of NFM and impacts to existing land cover, for assessing the overall benefits of NFM.

(Project lead – Hull City Council; consultants – Ove Arup; sub-consultants – Energy & Environment Institute, University of Hull; Funders – Flood Defence Grant in Aid, Environment Agency).

21 May 2020 12:30 -13:30 Dr Barry HankinQ-NFM

Lessons from modelling NFM at the micro-scale and macro-scale

Barry’s slides are available here.

Click here or on the image below to access the recording.

In the Q-NFM project, part of the NFM Programme, we want to constrain model uncertainties at the micro-scale using accurate measurements, so we can reduce uncertainties when we try to model the effectiveness of NFM at the macro-scale.

Whilst we have developed a modelling framework capable of scaling up hillslope processes and hydrodynamics around channels in flood, we have been recently getting to grips with modelling the micro-catchments, including the everyday issues faced by hydrologists.

The image is from some preliminary micro-scale modelling where telemetry from recent storms is being used to attempt to model different types of NFM – this example shows hydro-hedges at Stock Beck, Cumbria.

Barry explained how Q-NFM are working to scale things up, but also other types of new evidence are still needed to improve large scale and whole-system models.

16 April 2020 12:30-13:30: Dr Lydia Burgess-Gamble, Principal Scientist, Environment Agency

Working with Natural Process – the evidence behind natural flood management

Lydia’s slides are available here: NERC NFM_LydiaBG_160420

Questions and answers are available here: 200416 Webinar QuestionsLBG (002)

Click here or on the image below to access the recording.

Lydia gave an overview of the the work of the Environment Agency’s flood risk research team and how they identify research needs and deliver applied research which fills gaps in policy and practice.  She explains the Environment Agency’s NFM research framework.  In particular she covers work that summarises evidence behind NFM and how it has informed Government policy through the 25 year environment plan and how it is being used by practitioners implementing NFM schemes.  She also describes current research on Carbon offsetting and Sustainability.

19 March 2020 12:30 -13:30 Chris Short & Dr Angie Elwin: LANDWISE NFM

Integrating local knowledge in to NFM work: Insights from lowland catchments in the Landwise project

Click here or on the image below to access the recording.  

The Landwise project is looking at how effective land-based natural flood management (NFM) measures (such as woodland planting, changes to land and soil management and woody dams) may be at reducing the risk from flooding from surface runoff, rivers and groundwater in groundwater-fed lowland catchments. Integrating local knowledge with technical field and modelling work is a key feature of the project.

Chris and Angie spoke about their work bringing together local stakeholders with knowledge on current land use and management to find out which types of NFM measures they believe are acceptable (both culturally or socially) and feasible in certain landscape areas across the West Thames area. They presented preliminary findings from a recent farmer knowledge survey and from a series of NFM scenario building workshops. They outlined how outputs will be used to create catchment scale scenarios for modelling experiments to look at how land-based NFM could affect flood risk.  Finally they shared some learning on their top tips for stakeholder engagement concerning NFM.

Click here (Chris Short) and here (Angie Elwin) or on the images below to access webinar slides.

Answers to unanswered webinar questions

17 February 2020 12:30-13:30 Dr Ian Pattison, Heriot Watt University

The Role of Land Management in Mitigating Catchment Flood Risk

Click here or on the image below to access the recording.  

Ian talked about his research, in particular the outputs of the COMPACT project, a NERC funded project, under their Soil Security Programme  This involved investigation of the impact of arable and pastoral land management practices on soil health and structure, focusing on the process of soil compaction, and second, the link between field scale variations in compaction and catchment scale flood risk. It identified significant spatial variations in soil physical properties, using traditional sampling approaches, CT scanning and Ground penetrating radar.

Slides to be added.

16 January 2020 Dr Andrea Momblanch, Cranfield University

Cover crops as catchment management measure

Click here or on the image below to access the recording.  

Summary: Water companies are increasingly looking into catchment management strategies to deal with floods, water pollution and water scarcity. Measures based on cover crops are known to mitigate these issues as they slow down runoff, increase infiltration and soil cohesion. However, to support the design and prioritisation of investment decisions in their catchments, catchment managers need evidence about the magnitude of cover crop benefits at catchment scale, and the sensitivity of those benefits to species mixes and spatial coverage. Related to the BBSRC funded project ‘Using roots to bio-engineer soil’, Andrea’s talk covered the combined use of lab controlled trials and modelling to assess the effectiveness of cover crops on infiltration and soil erosion in the River Lea catchment.

Click here or on image below to access webinar slides.

27 November 2019, 12:30 to 13:30 Niels Corfield

Farmers and Soil Management

Niels rerecorded the webinar because there were are some sound problems in the original.  You can access the rerecording here.  Please note it is in several parts.

Click here or on the image below to access the original recording.

If you would like a copy of the slides, please contact Niels directly: info@nielscorfield.com

Working with farmers and landowners to help them adopt management practices that realise benefits including flood risk reduction and biodiversity enhancement whilst at the same time using supporting them to improve soil and pasture health, and their bottom line.

Niels is a researcher, adviser, educator, designer and tree nurseryman. His goal is to help create regenerative landscapes and farms in the UK and Europe, with a focus on agro-ecological systems that are low maintenance yet productive.

Niels delivers specialist training courses for farmers, growers and land managers across the UK. He advises on: soil health practices; planned grazing; agroforestry; whole-farm planning; infrastructure: water, fencing etc; composting & manure management; monitoring of soils & pasture; on-farm trials.

More on Niels’s work here.

18 October 2019, Prof Martin Evans & Dr Emma Shuttleworth, University of Manchester: Protect NFM 

Optimising NFM in headwater catchments to protect downstream communities.  Moorland restoration, including gully blocking, Sphagnum reintroduction and upland woodland planting.

Click here or on the image below to access the recording.

The UK supports 15% of the world’s blanket peat cover, but much of this vital resource is significantly degraded. As such, the restoration of eroding UK peatlands is a major conservation concern.  Landscape-scale restoration through the re-vegetation of bare peat and damming of gullies is extensive in areas of upland Britain.  Understanding the hydrological impacts of these restoration interventions is critical for flood risk management.  Martin and Emma talked about their research in the Southern Pennines.

Click here or on the image below to access a recording of the webinar.

Click here or on image below to access webinar slides.