A recent survey has uncovered a substantially larger area of ancient woodland in Hertfordshire than previously documented. The Herts and Middlesex Wildlife Trust (HMWT) confirmed a 50% increase in recorded sites compared to the initial Ancient Woodland Inventory compiled between 1981 and 1992, a finding that could significantly bolster local conservation efforts.
This significant expansion in known ancient woodland is largely due to advancements in digital mapping technology and a more comprehensive approach to identification. The HMWT explained that the updated methodology included smaller woodland areas and introduced a new category for ancient pasture and parkland, which were not considered in earlier assessments. This detailed work has been supported by decades of botanical surveys from professional ecologists and skilled volunteers, alongside invaluable local insights from residents and a contributing historian.
The newly compiled data is set to be submitted to Natural England, where it will serve as a crucial resource for protecting these invaluable habitats. Alex Waechter, Records Centre Manager at HMWT, highlighted the importance of this updated inventory, stating it provides an opportunity to counteract historical losses and fragmentation of woodlands. The information will also inform better management practices for forestry and leisure activities, ensuring these sites are preserved and enhanced for future generations.
Ancient woodlands are defined by continuous woodland cover since 1600 and are recognised as unique ecosystems. Fiona Mahon, HMWT Director of Nature Recovery, emphasised their ecological significance, noting they provide habitat for rare and threatened species such as the bluebell, herb Paris, barbastelle bat, and the red-listed marsh tit. These woodlands also possess the highest potential for biodiversity among all woodland types and are instrumental in combating climate change through carbon capture and storage.
The updated mapping will directly inform HMWT's emerging nature recovery strategy and action plan, aligning with the charity's mission to protect, connect, and expand woodlands across the county. This local initiative contributes to broader national and global environmental targets, specifically the commitment to protect and restore at least 30% of land for nature by 2030. The enhanced understanding of Hertfordshire's ancient woodland assets is a vital step towards achieving these ambitious conservation goals.