Hedges — National hedge reference layer

## **BD HEDGE** ## National reference layer of linear hedges in metropolitan France The BD Haie is the result of the work initiated within the framework of the system for monitoring bocages (DSB). The first version is the result of the merging of two data sources and their linearisation: hedges and groves of the vegetation theme of the IGN topographical product, called BD TOPO® and hedges with or without trees, aligned trees and groves from non-agricultural areas of the graphic parcel register (GPR). Since 2021, the linear benchmark of hedges has been mounted as a base and integrated into the BDTOPO. Source: https://geoservices.ign.fr/bdhaie