The Gwent Levels is a predominantly farmed landscape in what is otherwise a heavily built-up area of Wales. Largely lying at or below sea level, sea defence, flood protection and food production are interlinked and a high priority for the area.

Across the Levels, there are approximately 125 farms, including dairy, beef, sheep and some arable, covering around 6000 hectares.

As a result of the soil quality, favourable climate and water availability, the Levels has high yielding pastures and lush meadows that produce large quantities of dairy and meat. Together, these grasslands represent the largest area of grazing marsh in the UK.

Although productive, the combination of heavy subsoils and poor drainage make the land challenging to manage and the Levels are generally considered to be low quality agricultural land (Grade 4).

Farming and wildlife

Farming has been the consistent traditional management of the Levels for many centuries. This has allowed the development of unique habitats for wildlife, many of which are associated with the drainage system of grips, ditches and reens: alongside a diverse range of wetland and marginal plants, mammals and birds, over 260 species of wetland insects and other invertebrates have been recorded, some of which are found nowhere else in Wales.

The Levels is also home to one of the last remaining colonies of shrill carder bee, once widespread, but now known at fewer than 20 sites in the UK.

The importance of the Levels for nature is reflected in the number and extent of conservation designations; there are 8 Sites of Special Scientific Interest (SSSI) covering 5,856 hectares.

Changes in farming

As land management policies changed, encouraging greater intensification, many of the conditions that produced the unique Levels habitats were no longer present. Over time this has led to a gradual deterioration of habitats, and a decline in the abundance of wildlife.