Ottone Scammacca, François Bétard, David Montagne, Lucas Rivera, Célia Biancat, Geoffrey Aertgeerts, Arnauld Heuret
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引用次数: 0
Abstract
Geodiversity assessment gained a prominent interest in the geoscientific community and beyond. However, it is not always sufficient for land planning or geoconservation. It is then pivotal to account for the contribution of functional geodiversity (i.e., geofunctionality), for instance declining the ecosystem services (ES) cascade model. However, by our knowledge, geodiversity-based ES (GES) have been rarely quantified. This paper aims to adapt existing ES-related approaches to quantify and map GES in French Guiana, a French Overseas territory located in the Amazon, where ongoing land use changes might affect ES supply. Seven GES were spatially assessed through an indicator-based approach accounting for both offered and used GES and merged into multiservice maps. Multiservice maps were then combined with a hemeroby index to highlight geofunctionality hotspots. Difference maps were finally used to compare geodiversity and geofunctionality patterns. The ES framework seems an effective way to quantitatively assess geofunctionality. Geodiversity and geofunctionality do not follow the same spatial patterns: very geodiverse areas can be poorly functional and vice-versa. Therefore, geodiversity and geofunctionality need to be both considered when it comes to landscape planning. This might be enhanced through hotspot mapping to highlight priority areas for planners. This study also focuses on the role of human inputs in GES supply and raises questions about the selection of proper indicators that should fit each step from the ES supply to management. High-quality datasets must be available and their occasional absence is a central matter of land planning that must be addressed before every decision-making process.
期刊介绍:
The Geoheritage journal is an international journal dedicated to discussing all aspects of our global geoheritage, both in situ and portable. The journal will invite all contributions on the conservation of sites and materials - use, protection and practical heritage management - as well as its interpretation through education, training and tourism.
The journal wishes to cover all aspects of geoheritage and its protection. Key topics are:
- Identification, characterisation, quantification and management of geoheritage;
- Geodiversity and geosites;
- On-site science, geological and geomorphological research:
- Global scientific heritage - key scientific geosites, GSSPs, stratotype conservation
and management;
- Scientific research and education, and the promotion of the geosciences thereby;
- Conventions, statute and legal instruments, national and international;
- Integration of biodiversity and geodiversity in nature conservation and land-use
policies;
- Geological heritage and Environmental Impact Assessment studies;
- Geological heritage, sustainable development, community action, practical initiatives and tourism;
- Geoparks: creation, management and outputs;
- Conservation in the natural world, Man-made and natural impacts, climate change;
- Geotourism definitions, methodologies, and case studies;
- International mechanisms for conservation and popularisation - World Heritage Sites,
National Parks etc.;
- Materials, data and people important in the history of science, museums, collections
and all portable geoheritage;
- Education and training of geoheritage specialists;
- Pedagogical use of geological heritage - publications, teaching media, trails, centres,
on-site museums;
- Linking the United Nations Decade of Education for Sustainable Development (2005- 2014) with geoconservation.