Top Five Blog Posts of 2015

Our Council blog was viewed more than 14,000 times in 2015! Here are the top five posts:

NYC Urban Forester Sumana Serchan

Sumana Serchan: Get to Know Her! Sumana Serchan is an urban forester with NYC Parks and Recreation. Sumana has a master’s degree in Environmental Management from the Yale School of Forestry and Environmental Studies and a bachelor’s degree in Natural Resources/Conservation from the Rubenstein School of Environment and Natural Resources (University of Vermont). She grew up in Kathmandu City, Nepal.

 

 

 

B&B trees on truck Matthew Stephens
Photo by Matt Stephens

Transplanting and a Deeper Look at “Fall Hazards” NYC Director of Street Tree Planting Matt Stephens and Taking Root Editor Michelle Sutton  coauthored this story questioning commonly held beliefs about “fall hazards,” mostly as it applies to B&B trees, but they also discuss the interaction of the fall season with other production methods, like bare root. Nina Bassuk helped craft the section called “The Five Branches of Transplanting Success,” which should be of interest to anyone planting trees.

 

 

 

 

Biotope 18: Landscape, Wireless, Tree bed > 54”A New Method for Streamlining Tree Selection in NYC  Council President and NYC Parks Senior Forester David Moore shares how the City streamlined its system for making tree species selections for 25,000 street tree plantings a year using an ingenious categorization of “biotopes.” A municipality of any size can use this article to think strategically about their tree selection process.

 

 

 

 

Ithaca UFMPIthaca’s Urban Forest Master Plan: A Template for Other Munis Looking for a template as you craft or revise your community’s urban forest master plan (UFMP)? Ithaca once again leads the way. The newly revised document includes a master plan, tree inventory data, and arboricultural guidelines.

 

 

 

 

 

 

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Longtime Council President Andy Hillman (l) handed the torch to David Moore at ReLeaf 2015.

A Releaf to Remember Part I in a series of pictorials about the awesome 2015 ReLeaf Conference at SUNY ESF. Close behind was the inspiring Reflections from Incoming President David Moore

 

 

Transplanting and a Deeper Look at “Fall Hazards”

B&B trees on truck Matthew Stephens
B&B trees dug properly—i.e., when dormant. Photo by Matthew Stephens

by NYC Parks Director of Street Tree Planting Matthew Stephens and Taking Root Editor Michelle Sutton

We coauthored this story questioning commonly held beliefs about “fall hazards,” mostly as it applies to B&B trees, but we also discuss the interaction of the fall season with other production methods, like bare root. The section, “The Five Branches of Transplanting Success,” should be of interest to anyone planting trees, period!  With the help of Nina Bassuk and others, we tried to break down the complex interactions at work with transplanting. This article originally ran in Arbor Age (Fall 2015).  

The nursery industry is reluctant to dig certain species of trees in the fall, yet the “fall hazards” lists can vary significantly among nurseries. Also varying is the experience of nursery customers, including city foresters who plant hundreds or thousands of trees each year. In addition to digging season, there are other interacting factors at play in the fall planting picture.

A More Nuanced Look
Cornell Urban Horticulture Institute Director and street tree expert Dr. Nina Bassuk says, “Those fall hazards lists are generalizations. Typically the trees that appear on those lists are trees that are more difficult to transplant, period. In spring they don’t become easy to transplant; they’re just observed to be easier in the spring than in the fall.”

Tree Pittsburgh Director of Urban Forestry Matthew Erb has overseen the planting of more than 25,000 trees (mostly B&B) since 2008. “I’m sure if you look hard enough, you will find nearly every species on someone’s fall hazard list,” he says.

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American Chestnut Program at SUNY ESF Featured at the Upcoming ReLeaf Conference

At the 2015 ReLeaf Conference, you will have the opportunity to go behind the scenes of the SUNY ESF Chestnut Research and Restoration Project. Why is this research so critical? Why is bread mold key to the restoration of the American chestnut (Castanea dentata)? Watch these videos, and just try not to become infected with enthusiasm for this effort!

On ReLeaf Thursday, take a tour with Dr. Chuck Maynard of the laboratory and greenhouse where this groundbreaking research takes place. On Friday, hear the keynote talk from Maynard and Dr. Bill Powell, codirectors of the American Chestnut Research and Restoration Project, about restoring the American Chestnut.

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National Urban Forest Priorities: Your Thoughts, Please!

Screenshot 2015-01-21 14.21.00The National Urban and Community Forestry Advisory Council (NUCFAC) is seeking input on their 2016-2026 Urban Forestry Action Plan through an online survey. This is your chance to give our national urban forest leadership your opinions about what urban forest funding and program priorities should be going forward. When you go to the survey site, you will need to do a simple sign up to create an account, then you can comment.

Not yet familiar with NUCFAC? The 1990 U.S. Farm Bill created NUCFAC to advise the Secretary of Agriculture on matters relating to the protection, planting, and care of trees and forests in our nation’s cities and communities. NUCFAC brings together U&CF professionals to strategize the health and future preservation of America’s urban forests. Working together, the Council brings that a full spectrum of views into a consistent vision that is the foundation for a practical national policy on urban forestry.

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UF Must-Read: TD Bank’s Report on the Value of Toronto’s Urban Forest

 

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photo as seen on sweetandloveable.com

One of the summer’s most widely circulated urban forestry-related stories was about the TD Bank Group’s evaluation of the economic value of Toronto’s urban forest. TD Bank Group, which acts as a think tank as well as an advisory group of economists and has a full-time environmental economist on staff, is chaired by Senior Vice President and Chief Economist Craig Alexander.

In a great interview with Alexander on the Alliance for Community Trees (ACTrees) website, he said that his group found that for every dollar of maintenance, the trees are returning between $1.35 and $3.20 (a 220% return) in benefits. Alexander says, “It’s a good investment. We aren’t including things we can’t measure like the intangibles of being able to go to a park and enjoy the trees. This is a low ball number because you can’t measure everything.”

TD Bank Group Chief Economist Craig Alexander
TD Bank Group Chief Economist Craig Alexander

It’s thrilling for City of Toronto urban foresters and indeed urban foresters everywhere to get this kind of affirmation from economists from the second largest bank in Canada (eighth largest bank in the U.S.). In their capacity as a policy think tank, Alexander said his group of economists does research on the environment and that this is the first of their reports on “natural capital.” He says, “Economics measures GDP, but there is a lot that doesn’t get measured, including the value of the environment.”

In the ACTrees article, Alexander says, “The challenge we have on public policy and environmental issues is at the end of the day, you have to have a dollars and sense argument on your investment. This kind of data also really helps politicians and government officials to make decisions. Everyone is facing fiscal constraints… we need to economically appreciate what trees do. In the aggregate the numbers are really impressive.” This is something urban foresters have known for a long time, but coming from TB Bank’s Chief Economist, it will greatly add to this awareness among the populace.

You can read the full TD Bank Group report here.
You can read a great profile of Toronto’s urban forestry program here, starting on p 10 in the July/Aug 2011 issue of City Trees.

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Ed Gilman Pruning Research Update: Reduction Pruning to Prevent Storm Damage

By Michelle Sutton
Photos courtesy of the authors of Structural Pruning: A Guide for the Green Industry (Urban Tree Foundation 2013).

Codominant stems: A bark inclusion in the union indicates there is very little, if any, wood of one stem wrapping around the other. This is one of the conditions that make unions very weak and can be avoided by appropriate structural pruning when trees are young.
Codominant stems can be avoided by appropriate structural pruning when trees are young.

Studying tree pruning and its effects on tree stability is a classic form of applied research—and can be a little lonely. “Only a few researchers are tackling pruning right now, and that can be frustrating,” says Dr. Ed Gilman, Professor of Urban Trees & Landscape Plants for the University of Florida Environmental Horticulture Department.

Gilman does Extension outreach to municipal arborists and urban foresters to teach pruning practices based on his research findings. Because he is Florida-based, Gilman is acutely aware of the need for tree pruning that enhances the tree’s ability to survive wind storms. As we in New York are experiencing increasingly bizarre weather, including tornados in places where tornados were once unheard of, Gilman’s research has application to us.

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