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A framework for quantifying geodiversity at the local scale: a case study from the Rokua UNESCO Global Geopark
Helena Tukiainen1, Tuija Maliniemi1, José Brilha2
1Geography Research Unit, University of Oulu, P.O. Box 3000, FI-90014 University of Oulu, Finland.
Summary
This study introduces a new framework for measuring local geodiversity using field and digital elevation model data. Topographical variability can serve as a proxy for geodiversity, aiding geoconservation efforts.
Area of Science:
- Geoscience
- Environmental Science
- Conservation Science
Background:
- Geoconservation and geodiversity assessments are increasingly important.
- Methodologies for local-scale geodiversity measurement are currently limited.
Purpose of the Study:
- To present a framework for assessing local-scale geodiversity.
- To quantify geodiversity (alpha, gamma, beta) and topographical heterogeneity of landforms.
Main Methods:
- Utilized field-based data and Digital Elevation Models (DEMs).
- Assessed presence/absence of geodiversity elements (geological, topographical).
- Quantified alpha, gamma, and beta geodiversity and topographical variability.
Main Results:
- Distinct patterns in geodiversity and topographical variation were observed across landforms.
- Differences in alpha, gamma, and beta geodiversity were significant between landforms.
- Topographical variability measures showed potential as geodiversity surrogates, but are context-dependent.
Conclusions:
- The developed framework provides a method for local-scale geodiversity assessment.
- Findings support the use of topographical variability as a partial proxy for geodiversity.
- Results are applicable to scientific research, management, and geoconservation strategies.
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