Neighbourwoods was developed by Dr. Andy Kenney and Dr. Danijela Puric-Mladenovic. There are many kinds of inventories, yet none can be pointed to as being universally correct. In fact, the objectives of the tree inventory will define what data need to be collected, and the ways in which it will be collected and recorded. The extent and detail covered by the data will determine the cost of the inventory, and its usefulness. For example, collecting information on one problem, or only on tree condition, provides minimal data, but the inventory can be completed quickly. A general survey will be more costly to develop and maintain, but will also provide more information and flexibility in the use of the inventory for managing the urban forest.
The Urban Forests Centre has developed a unique inventory procedure that provides for the collection of accurate information with multiple uses later in the Neighbourwoods program. Standardized data collecting and recording protocols ensure that data collected by one crew has the same meaning and reliability as that collected by others. The major characteristics of this unique inventory approach are:
A standardized inventory procedure to minimize bias among surveyors and over time;
Standardized data entry to reduce error and facilitate training;
A cost effective approach to data collection;
Custom manipulation of inventory data.
The inventory data can be grouped according to:
Tree Condition; and
Conflicts between trees and other infrastructure.
Each of these categories has a list of critical information that must be collected. While inventorying your trees, the information is recorded on an inventory sheet. Each will be discussed in some detail below.
The management program uses the data collected in the field to determine maintenance needs, develop budget and work scheduling. The approach includes a flexible inspection strategy, the identification of potential hazard and candidate heritage trees, the estimation of tree value, etc.
Neighbourwoods© tree inventory protocol has been used by a number of communities across Ontario (e.g. Town of Mitchell, Kingston, City of Thunder Bay, The Annex and Harbord Village in Toronto, Windsor, Elora and Fergus, and others) and implemented to develop strategic urban forest management plans.
For more information contact: W.A. Kenney (a.kenney AT utoronto.ca) and D.Puric-Mladenovic (d.puric AT utoronto.ca)
More about Neighbourwoods:
- A volunteer-based approach to assessing the condition of urban trees
-South West District: Trees and More
- Tree huggers - ON nature
- ISA Ontario: Engaging Communities: Using Tree Inventories to Start the Conversation
- UofTMagazine: The Urban Forest
- The Wellington Advertiser: Tree inventory starts
Urban Tree Inventories ( see page 4 and 5)
- Neighbourwoods presented at the Canadian Urban Forest Conference 2014