Critical root zone definition

Critical root zone means the zone in which the roots of a tree are located, as defined in the latest version of the Trees Technical Manual. It is also the area around a tree which should be undisturbed unless protection measures are provided to protect the long-term viability of the tree.

Critical root zone. (CRZ) means the area of soil around a tree where the minimum amount of roots considered critical to the structural stability or health of the tree are located. CRZ can be determined using the dripline of the tree.

Critical root zone means the area around a tree requiring protection, as determined by an arborist; generally, the area surrounding a tree trunk at a distance equal to one foot for every inch of tree diameter.

Examples of Critical root zone in a sentence

• Critical root zone means the minimum area beneath a tree which must be left undisturbed in order to preserve a sufficient root mass to give a tree a reasonable chance of survival.

• Critical root zone means an area of root space that is within a circle circumscribed around the trunk of a healthy tree using a radius of one (1) foot per once (1) of a DBH.

• Critical root zone: The minimum area beneath a tree that must be left undisturbed in order to preserve a sufficient root mass to give a tree a reasonable chance of survival.

• Includes but is not limited to the following:1.) Critical root zone plus an additional 3 feet; all areas of a parcel required to remain in open space; all areas required as landscape strips and/or buffers (including zoning buffers, state water buffers and tributary buffers); tree save areas according to provisions of the Fulton County Zoning Resolution, conditions of zoning, use permit or variance approval, and/or the Tree Preservation Ordinance and Administrative Guidelines.

• In Chapter 1 and 2 it replaces the term "cell" in a number of places.

More Definitions of Critical root zone

Critical root zone means the protection zone for an individual tree or an area defined by a circle

Critical root zone means the area of land surrounding the trunk of a tree contained within a circle of radius equal to the DBH of the tree multiplied by 18; or equal to the dripline of the tree; whichever is greater.

Critical root zone. (CRZ) means the area on the ground surrounding a tree that is one

Critical root zone means the protection zone for an individual tree or an area defined by a circle with a diameter 36 times the DBH of the tree (or 1.5' of radius for each inch of DBH) or such smaller area as determined by the City Manager in a tree impact assessment.

Critical root zone or “CRZ” means a circular area determined by either of the following methods. The method used shall be indicated on the plans.

Critical root zone means the area around and under a tree. The radius of the Critical Root Zone measures 1 foot per 1 inch of diameter at breast height (DBH) from the trunk outwards and twenty-four inches in depth. For example, for a 10-inch DBH tree, the Critical Root Zone is located at least 10 feet out from the trunk and 24 inches deep.

Critical root zone means the area that should be protected during construction to minimize impacts to a tree. To prevent construction damage, fence off the critical root zone. Estimate the Critical Root Zone by measuring the diameter of the trunk at breast height (dbh) in inches, multiplying that number by 1.5, and using that number in feet as the radius of the protected area. For example, a ten-inch tree would need to have tree protection fencing located 15 feet away from the trunk; while a 20-inch tree would need to have tree protection fencing located 30 feet away from the trunk.