Vegetation zone of Troyes Champagne Métropole

Description

**Definition**: Natural or non-natural plant space, differentiated in particular according to the tree cover. **Glossary**: • **Forest** Land with an area of more than 5 000 m2 with an absolute tree cover rate of 10% or more over a width of at least 20 metres with trees reaching or capable of reaching a height of more than 5 metres in situ. With the exception of cultivated orchards. A consequence of this definition is that wooded areas between 80 m2 and 5 000 m2 will be classified under the attribute value "Wood". • **Covered with trees Absolute cover of a stand**: "planimetric surface of the vertical projection of crowns of stand trees". Absolute cover rate: "quotient of the absolute cover of the stand by the surface of the site". Relative cover rate of underpopulation: "quotient of absolute canopy cover of underpopulation by absolute canopy cover of stand". Free cover: "covered stand with access to light". • **Land** Land with an area of more than 5 000 m2 with a recovery rate of natural or semi-natural vegetation (woody or non-woody) of more than 10% and a relative recovery rate of low woody trees (shrubs and sub-shrubs) greater than or equal to 25%. The tree recovery rate shall not exceed 10 %. The heathland does not show evidence of regular human intervention of an agricultural type (fence presence reflected in a visible parcel). There are extensive range areas, brownfields, vacant lots, scrubland and unforested scrubland... **Geometric modelling**: Outer contour of the area. Modelling constraint: Breakdown of the area according to the main networks (road, rail, linear hydrography) of the base, except for the attribute values "Zone arborée", "Vigne", "Bananeraie", "Mangrove" and "Canne à sucre". This consistency is achieved only during the production of the vegetation theme, and not during the update of the networks. The vines are not cut and repositioned on linear networks (road, rail and hydro), but they are on surface networks (road and rail). The current production process ensures that the vegetation graph is planar (excluding the attribute values "Zone arborée", "Bananeraie", "Mangrove", "Canne à sucre" and "Vigne"). **For the list of variables, see pages 182 and 187 of the document "BD TOPO version 3.0 content description": [https://geoservices.ign.fr/sites/default/files/2021-07/DC_BDTOPO_3-0.pdf]** **INFORMATION**: THE DATA GAME IS AVAILABLE IN THREE FORMATS (*.XLSX, *.CSV AND *.GPKG). THE NUMBER OF REGISTRATION IS IN THE ORDER OF: 18564

Resources

Name Format Description Link
54 https://www.data.gouv.fr/api/1/datasets/r/5f4c076c-a09f-46e0-8487-59ecf3a73444
0 https://www.data.gouv.fr/api/1/datasets/r/b59516ac-9dd2-4b3a-bf0c-e0abe9a87bac
33 https://www.data.gouv.fr/api/1/datasets/r/e10e67a5-dfbd-45b2-87d5-eb0fb229a292
8 https://www.data.gouv.fr/api/1/datasets/r/ee396404-a861-4696-b166-e8d7186cecf3

Tags

  • vegetation-sauvage
  • vegetation
  • troyes-champagne-metropole

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