BD HAIE v1 — Occitanie 2020

The two data sources used for the production of the linear hedges of the Bocage Monitoring System (DSB) in metropolitan France are: * Hedges and groves of the vegetation theme of the topographic database of the IGN, BD TOPO®, obtained by automatic segmentation of aerial images and classified by photo-interpretation on images from 2004 to 2015 by department; * Hedgerows or not, aligned trees and groves from non-agricultural areas of the Graphical Parcellar Register (GRP) photo-interpreted from images dating from 2011 to 2014. The GPR serves as a reference for the appraisal of aid financed by the common agricultural policy (EU Regulation No 1593/2000). The joint use of these two bases is necessary because one does not cover the entire territory (the GPR exists only for agricultural use) when many untreated hedges are absent from the other (BD TOPO). OPenIG makes version 1 of the Haie BD available in shapefile format for the 13 departments of Occitanie and related documentation.