By Tom Atiyeh
Rarely could a book capture the spirit of my recent job transition as well as Nalini Nadkarni’s Between Earth and Sky.
The book was poignant for me as I moved from working at Opal Creek Ancient Forest Center, where staff members were stewards of thousand-year-old stands of Douglas-fir, Western Hemlock, Pacific Yew, and Western Redcedar, to my current work with the urban forest at Friends of Trees.
Between Earth and Sky was published in 2008, and it has taken me over a year to finish it, mainly for two reasons: I didn’t want it to end, and it helped me make the transition from the ancient to the urban.
A well-known environmental professor from Evergreen State College in Washington, Nadkarni weaves poetry and science to encompass forests from canopy to roots. Her view is similar to that of forest ecologist Dr. Jerry Franklin, who said at the conclusion of his recent Portland State University presentation, “There is as much life to explore below the surface as above.”
The 40 assembled poems and 20 pages of recommended reading in Nadkarni’s book will give the intrepid reader plenty to ruminate about and will inspire scholarly pursuits. Her anecdotes and reflections explain her own personal affinity for trees.
By Brighton West
Someone recently asked why Friends of Trees planted trees under power lines, implying that it was a bad idea. Not so if you follow the rule “Right Tree in the Right Place.”
Trees have different types of growing habits. We know that Doug-Firs have a strong central leader (the main trunk goes straight up), Accolade Elms don’t (their branches all spread out and create a vase shape), and Prairiefire Crabapples only grow about 20 feet tall.
Knowing these characteristics, we can select a tree that doesn’t grow tall enough to interfere with primary power lines—and thus won’t need to be pruned by the power company.
I don’t know of many people who like to look at overhead wires, so selecting a low-growing tree to grow underneath the primary lines can be a good way to screen these lines from eye level. And if the lines aren’t primary power lines, a tall-growing tree could be the most effective—but more about that in my next blog post.
Coming next Monday: Trees and Powerlines: When is it OK to plant a tall tree under power lines?
West is the programs director at Friends of Trees: brightonw@FriendsofTrees.org; 503-282-8846 ext. 19
By Andy Meeks
On Wednesday morning approximately 30 people were treated to a walking tour highlighting the trees and history of Laurelhurst Park.
Reynolds has done extensive research and mapping work in the Southeast Portland park and said that there are nearly 1,000 trees in the park consisting of almost 115 species, about one-third of which are Douglas-firs. She gave a very thorough, descriptive and entertaining walk past ginkgos, grand firs, the Concert Grove lindens, black oaks, sycamore maples, giant sequoias, Kentucky coffeetrees, white oaks and dawn redwoods.
The group learned from Reynolds that Laurelhurst Park was once part of the 462-acre Hazel Fern Farm owned by William Sargent Ladd, a native of Vermont who twice served as Portland’s mayor in the 1850s. He used it as a dairy farm and also raised Clydesdale draft horses and cattle. Ladd died in 1893 and his heirs sold the surrounding land to a group of developers who created the Laurelhurst neighborhood in conjunction with Frederick Law Olmsted’s landscape architecture firm.
Oregon State researchers have found a fungal disease is strengthening its attack against Pacific Northwest Douglas-fir, reports The Oregonian.
An excerpt from the story:
The epidemic of Swiss needle cast stunts growth in both older and younger trees and appears to be unprecedented over at least the past 100 years, OSU researchers Bryan Black, David Shaw, and Jeffrey Stone concluded.
Swiss needle cast, which originated in Europe, has spread sharply since 1996. It affects hundreds of thousands of acres in Oregon and Washington, costing tens of millions a year in lost growth. It rarely kills trees but causes discoloration and loss of needles and stunts growth.
The researchers found that 376,000 acres were affected by the disease in 2008.
By Jesse Batty
On Tuesday, Vancouver Urban Forestry held another TreeTalk workshop, this time on ‘Hazard Tree Risk Assessment.’
Native trees here in the Pacific Northwest, like Bigleaf Maple, Douglas-fir, Western Redcedar and Oregon White Oak, among others, are designed to withstand wind.
Trees that fail and fall are those that have shown some signs of stress and are most often hazard trees. Homeowners can look for signs of stress in their trees by looking for indicators such as decayed wood, mushrooms, cracks, root problems, weak branch unions, cankers and dead limbs.