[CANUFNET] A Quick Urban Street Tree Inventory for Municipalities

Nielsen, Astrid Astrid.Nielsen at ottawa.ca
Thu Mar 13 12:22:52 EDT 2014


Hi Andy,

I’m not sure if this has been shared on CANUFNET before... if not, please do. It’s a neat tool I just discovered that was developed by NRCan to complete a quick urban street inventory that is based on sampling 10% of the total inventory:

http://gmaps.nrcan.gc.ca/uts/index.php?lang=e&page=overview.php

They have already mapped the sample points for many towns/cities across the country, and provide a field sheet for collecting data. It seems to be an inexpensive way for municipalities on limited budgets to estimate their forest cover. Here is a cut and paste of their general approach:
Most urban centers have thousands of trees within their boundaries; counting and identifying each one would require a tremendous effort. Therefore we have developed an approach that surveys only a sample of the trees in a city/town, but still allows us to accurately estimate the total number of trees and tree species composition. Surveyors will walk a number of routes (0.5 km in length) that have been randomly located throughout their urban centre, identifying trees to genus (or to species if possible) as they go. In total, the routes will cover about 10% of the total length of roads in each urban centre.

Astrid Nielsen, RPF
Section Manager, Forest Planning and Protection Unit
Forestry Services, City of Ottawa
• 100 Constellation Ave. | Ottawa, Ontario, K2G 6J8| • (613) 580-2400 x15258 | Fax: (613)580-2611





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