This week doctorarbol in collaboration with ARBOLINNOVA and the city of Zalla (Guikuzkoa) have made a test demonstration on some of the unique Cedars of the municipality.
The tree on which we conducted the Test has more than 80% of the root system damaged by some ancient works, however the level of cohesion with the ground (as it was proven with the Test) is still very high.
Link to the news published by the daily newspaper DEIA
http://www.deia.com/2013/11/28/bizkaia/zalla-prueba-un-estudio-que-mide-la-estabilidad-de-los-arboles
