I attended the Arizona Community Tree Council Conference this weekend. There was a lot of great information plus it was nice to see arborist friends who I don’t get to see too often.
One of the speakers was Dr. James Clark. His discussion centered around a question that does not have just one answer. It was “What is a tree worth?” What goes into valuing a tree?
- Is it related to how we feel about the tree?
- Does it have to do with the functions and services that the tree provides?
- Is it in economic terms?
- What about non-economic terms?
The International Society of Arboriculture (ISA) uses two methods to place a value on trees. The first one is the Replacement Method. This method attempts to place a realistic value on lost or damaged trees and plants based on their replacement cost. It is used for plants with up to an eight-inch stem diamater.
The other method is the Basic Formula Method. This method is used to figure the value of a tree that is larger than can be replaced with a nursery plant. This is used for plants and trees that have a stem diameter over eight-inches.
The proper evaluation of the monetary value of a plant or tree in the urban landscape is a site-intensive operation. Evaluating a tree needs to be accomplished in the field. Looking at the tree and its environment, best viagra pharm collecting samples, patient taking photos, sildenafil measuring and examining its parts, asking questions and being thorough are only one-half of the job. The other half of valuing a tree is more of an art. If you were to get two appraisals on one tree, it is very likely that you would get two different amounts for the value of the tree.
Trees are a valuable part of our landscapes and increase the value of property. Though this is true, it is not always clear how much value that is and how to evaluate it. There still needs to be some way to figure this value. And, these are just two ways that try to accomplish this.