Geothermal vegetation of the Waikato region, 2023

This study provides an updated inventory of the current distribution, condition, extent and ecological values of geothermal vegetation and habitats in the Waikato region, where almost 75 per cent of New Zealand’s geothermal systems occur.

Waikato Regional Council has significant responsibilities for the management of geothermal systems and associated habitats. This report presents findings from the 2022-2023 update to the inventory of geothermal habitats in the Waikato region. Forty-six sites with geothermal vegetation, located within 14 geothermal systems and 17 geothermal systems have been identified, mapped, described, and assessed for significance in this report. For each site the vegetation types, site boundaries, and location relative to other sites are mapped.

A history of ecological assessment of geothermal habitat provides context for the current inventory, which is complemented with a section on the ecological context. Changes in site conditions, management actions, and threats are all considered.

Report: TR 2023/22

Authors: Chris Bycroft, Sarah Beadel, Federico Mazzieri, Matthew Renner, Deborah Smith, Hannah Heasman, Angela McQuillan, Mitchell West, Jo McQueen (Wildland Consultants Ltd)