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Thousands Of Trees Gone, Ripped Out By Sandy

Filed by KOSU News in US News.
November 20, 2012

New York City lost almost 10,000 trees from the winds of Superstorm Sandy and the Nor’easter that followed. That’s far more than any other storm in the city in which tree damage was recorded.

Walking through Central Park, Ken Chaya peers past a stone arch, observing the damage and uprooting of about 800 trees from the storms. He knows more about the park’s trees than just about anybody else. He created a map that charts every single one of the roughly 20,000 trees.

“Looking over Glen Span, I can count 1-2-3-4-5 — at least five — fresh cuts of mature trees,” he says, also noting the number of tree crews.

The city’s Parks & Recreation Department, which looks out for street trees as well as those in parks, went on alert way before Sandy arrived. Five days before the storm, they were already making arrangements with tree crews from around the country.

For several years, the department has noticed dramatic changes in weather. Bram Gunther, chief of forestry, horticulture and natural resources for the city’s Parks & Recreation Department, notes the unprecedented string of natural disasters in the last two years: two tornadoes, a freak storm that took down 500 Central park trees, an unusual early winter storm and Tropical Storm Irene.

“When that happened, that really opened our eyes, and it opened our eyes to the power of these storms which we had not experienced directly in New York City, at least since I was a child,” Gunther says.

Irene took down about 3,400 trees throughout the city, while Sandy claimed three times that amount. Many of those trees were old, beloved and as large as six feet in diameter.

“The bigger the tree, the more carbon it captures, the more particulate matter it filters, the more storm water it captures, so it’s a huge number in terms of environmental benefits and what it does for a community,” Gunther says.

A study from the U.S. Department of Agriculture shows that the city’s more than five million trees remove 42,000 tons of carbon and about 2,000 tons of air pollution per year. They also have a whopping monetary value of $5.2 billion.

Twenty-four hours after the storm, the department sent people walking, riding and bicycling all 33,000 blocks of New York City with handheld computers, reviewing damage and putting in work orders.

“We do every single one to assess and evaluate the damage of the trees and the safety of that particular block,” explains Gunther, who monitored all the computers from his storm mobile command center.

In Central Park, Ken Chaya points to a 75-year-old black locust. “Its trunk was just yanked out of the ground by the wind,” he says.

Nearby, a downed tree has pulled up a huge rock — a piece of Manhattan schist, the 450-million-year-old bedrock that lies beneath Manhattan. Chaya says there is only a little layer of soil over the bedrock and trees can’t sink a deep tap root, so they branch out horizontally. In a storm, many of the trees just topple over.

The city is already ahead of schedule in its commitment to plant a million trees by 2017. Chaya says, because newly planted trees are small, it’ll be years before the city can truly be what he calls an urban forest.

“Our urban forest, it’s fading, we’re losing it,” he says. [Copyright 2012 National Public Radio]

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