Pirkanmaa’s valuable ridges inspection data 2014

The review of the inventory of the demarcation of valuable ridge areas is part of the project to coordinate groundwater protection and aggregate management (POSKI) carried out in Pirkanmaa in 2012-2015, which is a continuation of the POSKI project carried out in the Pirkanmaa region in 1997-2000. The data includes new demarcations of valuable ridge areas that have been reviewed in the context of the inventory work. There are 131 regions (8 nationally valuable, 34 regionally valuable and 89 locally valuable). The mapping and inventory of ridge formations in Finland has been started at the national level in the 1970s, and since the entry into force of the Land Materials Act in the 1980s, the ridge areas to be connected to national ridge protection missiles were limited. Since then, the inventory of ridge areas has been carried out at local level in the counties. Three different studies have been carried out on the demarcation of valuable ridges in Pirkanmaa between 1990 and 2008. In addition, the 1st regional plan of Pirkanmaa sets out its own boundaries for geologically valuable ridge formations (ge1 areas). In each survey, the ridge areas (or some of them) have been redefined and resulted in several conflicting demarcations. Problems arise when different parties make decisions using different time limits. The aim of this update is to examine the contradictions caused by the boundaries that have been made at different times and to create new boundaries based on uniform criteria for all regions. The Pirkanmaa Federation received funding from the European Regional Development Fund (ERDF) for the POSKI project by the Pirkanmaa Centre for Economic Development, Transport and the Environment. The project was funded by the Association of Pirkanmaa, the Geology Research Centre, the Municipality of Kangasala, the Municipality of Lempäälä, the City of Nokia, the Municipality of Pirkkala, the City of Tampere and the City of Ylöjärvi. Columns of the property data table: Name: name of the ridge area The municipality: location of the ridge area/municipalities Value class: 2= nationwide, 3=provincial, 4=local Arvol_teks: verbal description of the value category Ge1_area: area to be marked as a valuable geological formation in the Pirkanmaa regional plan 2040 (yes/no) Category: Classification of the pork project (same for all regions, i.e. E=unsuitable for soil extraction) MAL_category: practical application category 1-4 of the Lands Act (see report) For Consumption: consumption-resistance 1-4 (see report) Toimpid_lk: category 1-4 (see report) Ala_ha: area in hectares