Cors Goch National Nature Reserve

Enviroculture completed a programme of scrub clearance, molinia cut-and-collect, fencing and infrastructure works at Cors Goch National Nature Reserve in Carmarthenshire. Despite difficult ground conditions, access constraints and strict conservation requirements, the project was delivered safely and successfully, supporting peatland restoration and biodiversity enhancement.

About the Client 

The Wildlife Trust of South and West Wales manages Cors Goch, a designated Site of Special Scientific Interest (SSSI) and National Nature Reserve. The site contains a nationally important raised peat bog forming part of the Trust’s wider habitat restoration programme.

The Challenge 

The site presented significant constraints. Terrain was extremely wet and unsuitable for conventional plant, with deep hidden holes from earlier restoration attempts posing serious hazards. No chip or mulch could be left on site, requiring complete off-site removal of arisings. Protected bog habitats had to be avoided, while daily access required liaison with Network Rail to cross an active railway line. Entrances and access routes were also vulnerable to erosion under heavy use.

The Solution 

A conservation-led and flexible approach was adopted. A tracked dumper with modified high sides and a tracked chipper were used to remove chip without surface damage. A low ground pressure digger with tree shear was deployed where ground conditions allowed, while in wetter areas material was cut and processed by hand. All chip was taken to a single entrance for removal and stockpiling off-site. When wear at the entrance began to cause erosion, ground protection mats were installed to stabilise the access point. Hazardous deep holes were mapped using GIS data and marked with canes so they could be avoided. Molinia was cut and collected using a crawler tractor with flail collector, while stumps were treated with Eco plugs to prevent regrowth. All logs and arisings were removed from site in line with client requirements.

The Implementation 

Risk assessments, daily briefings and method statements were maintained throughout. Procedures for crossing the railway were followed each day in close coordination with Network Rail. Site staff adapted methods in real time, switching between mechanical and hand cutting depending on ground conditions.

Additional Projects and Challenges 

The presence of deep holes left by previous restoration efforts added risk to both staff and machinery. These were managed by integrating GIS mapping into site preparation and marking locations with canes to avoid accidents. Erosion at the main access point was mitigated by halting operations until ground protection mats were installed.

The Results

The clearance of scrub and molinia improved light and hydrology, supporting the recovery of rare peatland habitats. Sensitive bog zones and archaeological features were safeguarded by adapting methods and installing protection where required. The use of innovative plant, GIS mapping and responsive risk management ensured the works were delivered on time and in full compliance with the client’s specifications.