Zoning of steep slopes at 100 m from the line of rivers and water surfaces of Brittany

Zoning of steep slopes located less than 100 m from the line of streams and water surfaces throughout Breton territory.
The data used in the input of the processing extends to the region of Brittany and are as follows:
— BD ALTI® V2 — February 2014 edition (source IGN)
— BD TOPO® — SURFACE_EAU_BZH_2016 — April 2016 edition (source IGN)
— BD TOPO® — TRONCON_COURS_EAU_BZH_2016 — April 2016 edition (source IGN)

The slopes are broken down into 3 classes:
1: slopes from 7 to 10 %
2: slopes of 10 to 15 %
3: slopes greater than 15 %