DOI: 10.5281/zenodo.15593688
title: Open British Arboricultural Record Dataset (OpenBARD)

description: This dataset is collated from arboriculturists in the UK and predominantly contains records from England, with some data from Wales, Scotland and Jersey. Each record in the dataset is an individual tree that has been assessed in the field. Different organisations contributed data to the dataset, so not all data is available for every record. The dataset has been cleaned to aid analysis (details in this report) but users are advised to exercise caution, particularly for the common_name_clean and generic_name_clean fields.

The dataset was prepared and released by Dr Joe Fennell (https://www.jfscientific.co.uk) and Mr Luke Fay (https://www.treeworks.co.uk/)

Reporting Issues and Feature Requests

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Field names and descriptions.






Column Name



Description



Data Type



Units



Options



Example Value





record_id



UUID for this specific record



String



 



 



 





n_stems



Number of stems



Integer



count



 



2





stem_diameter_1_cm



Diameter (DBH) of first stem



Float



centimetre



 



34





stem_diameter_2_cm



Diameter (DBH) of second stem



Float



centimetre



 



28.5





stem_diameter_3_cm



Diameter (DBH) of third stem



Float



centimetre



 



 





stem_diameter_4_cm



Diameter (DBH) of fourth stem



Float



centimetre



 



 





stem_diameter_5_cm



Diameter (DBH) of fifth stem



Float



centimetre



 



 





height_m



Height of tree



Float



metre



 



17





life_stage



Tree life stage



String



 



young; semi_mature; mature; late_mature; ancient; dead



mature





physiological_condition



Tree health condition



String



 



good; fair; poor; dead



good





classification



Environment/site classification



String



 



suburban; urban; rural



urban





county



County or administrative region



String



 



 



somerset





latin_name_clean



Latin species name



String



 



 



quercus robur





common_name_clean



Common name (NOTE: treat with caution)



String



 



 



english oak





generic_name_clean



Generic name (NOTE: treat with caution)



String



 



 



oak





genus



Genus of the tree



String



 



 



quercus





species



Species (epithet)



String



 



 



robur





combined_stem_diameter_cm



Combined stem diameter (basal area equivalent diameter)



Float



centimetre



 



44.4





is_multistem



Whether the tree has multiple stems



Bool



 



True; False



TRUE





crown_radius_n_m



Crown radius to the north



Float



metre



 



2.1





crown_radius_s_m



Crown radius to the south



Float



metre



 



2.3





crown_radius_e_m



Crown radius to the east



Float



metre



 



1.9





crown_radius_w_m



Crown radius to the west



Float



metre



 



2.5





crown_radius_se_m



Crown radius to the southeast



Float



metre



 



 





crown_radius_nw_m



Crown radius to the northwest



Float



metre



 



 





crown_radius_ne_m



Crown radius to the northeast



Float



metre



 



 





crown_radius_sw_m



Crown radius to the southwest



Float



metre



 



 





crown_radius_minimum_bounding_circle



Radius of the minimum bounding circle



Float



metre



 



2.2





crown_radius_maximum



Maximum crown radius across all directions



Float



metre



 



2.5





data_contributor_id



Identifier for data contributor



String



 



 



C7





Data Contributors

The following organisations contributed data that was used during the project: Treework Environmental Practice, Arbor-eco consultancy, Bartlett Tree Experts, Barton Hyett Associates, Oxfordshire County Council, Sharon Hosegood Associates, TMA Environmental Consultants, Tree Frontiers and Wharton Natural Infrastructure (Please note that not all data initially supplied is contained in the final dataset).

Acknowledgements

The authors are very grateful to the following people for their contributions to the previous stages of this project: Carl Walters (Open University), Natalie Cook (Treework Environmental Practice), Supritha Hudgur (Treework Environmental Practice), Magda Mach (Treework Environmental Practice), Sharon Durdant-Hollamby (Sharon Hosegood Associates), Madalena Vaz Monteiro (Forest Research), Hannah Walker (Forest Research), Kieron Doick (Forest Research), Kadmiel Maseyk (Open University) and Phil Wheeler (Open University).

The previous phase of this project received financial support from The Open University’s “Open Societal Challenges”Programme under a grant awarded to Dr Kadmiel Maseyk, Dr Phil Wheeler and Dr Joe Fennell.