Consider visiting and contributing to SCUP's LinkedIn discussion about if and how college and university campuses may be inventorying and valuing their trees, and how integrated that is to master planning and overall planning work. We're looking for people to share current best practices.

It turns out that a campus tree has more value, and more kinds of value, than most people would think. A 2006 study of the value of New York City's tree inventory is one of a number of such studies, reflecting a growing number of institutional entities which consider trees to have both capital and operational value. If your campus is planning in an integrated way, in fact, it makes good sense to understand your tree inventory and its value to the institution.

• The article linked-to here, mentions i-Tree, a free software suite that lets people managing tree inventories to do so while taking many important variables into account.
• If you have an interest in campus heritage landscapes, you should visit SCUP's Campus Heritage Planning Network where, among other resources, there are several reports on campus-wide heritage landscape planning.

Trees provide solar reflection for energy savings, clean air pollutants, and intercept water to reduce stress on storm water runoff. New York figured that measuring the value of its 600,000 trees in this way results in a savings for the city of nearly $120 per tree, annually. Figure in aesthetics and things like property value, public health (visible trees reduce the length of hospital stays), stress, and so forth, and another $90 per tree per year in value brings the total to $210 per tree.

In New York City, that is a total of $122M in benefits from a department of the city that spends less than $15M on trees and forestry staff, resulting in an annual net positive value to the city of more than $100M, from urban trees.