Wildlife Conservation Jobs –
In rare situations, some landscape architects and designers may specify Forest Stewardship Council (FSC)-certified tropical hardwoods for outdoor spaces because there may be no good alternatives. But imagine if instead of just placing a hardwood order and hoping the wood was actually sustainably harvested, designers partnered with conservationists and scientists to preserve the forest from which the wood is cut.
Brooklyn Bridge Forest, the winner of the Re-imagining Brooklyn Bridge design competition organized by the Van Alen Institute and New York City Council, proposes sourcing Manchiche hardwood for new promenade planks on the bridge from the Uaxactú Community Rainforest in Guatemala. At the same time, they would preserve 200,000 acres of the nature preserve.
The multi-discplinary team behind Brooklyn Bridge Forest beat 200 competitors from 37 countries to win top prize. The team was led by Pilot Projects Design Collective, which includes landscape architect Christine Facella; along with the Wildlife Conservation Society, Cities4Forests, The Nature Conservancy, Grimshaw Architects, and Silman, a structural engineering firm.
According to the team, one of the best experiences in NYC is to stroll the upper wood deck of the Brooklyn Bridge, which is why more than a million people do it each year. The genius of John Roebling, the bridge’s designer, was to “contrast iconic stone towers and graceful steel cables with the warmth and softness of a wooden boardwalk to create the ultimate setting for the pedestrian,” the team states.
Pilot Projects Design Collaborative and its partners propose making Brooklyn Bridge an even better walking and bicycling experience by expanding the upper wood deck of the bridge and creating new biodiverse green spaces at either end of the bridge and areas for pop-up markets.
The bridge’s existing Greenheart (Ocotea rodiaei or Chlorocardium rodiei) wood promenade is a mile long and comprises 11,000 planks that are approximately 4-feet wide by 16-feet long. Tropical hardwoods like Greenheart used for boardwalks and promenades typically lasts around 30 years.
The team explored replacing the hardwood with plastic lumber, but found the planks to be too carbon intensive. They also looked at domestic hardwood, like Black Locust, which is always preferable to tropical hardwoods, but found that the lumber doesn’t come in sizes that are long enough. The team also looked at concrete and wood composites but found using those materials would require structural updates to the bridge. So they proposed replacing the existing planks, sourced from an unknown forest in South America 30 years ago, with sustainably harvested Manchiche (Lonchocarpus castilloi) from the Uaxactú Community Rainforest.
Instead of the city spending $2 million for the new wood, the public would sponsor individual wood planks at a cost ranging from $400 to $5,000 and in turn have their name laser- or fire-etched into a plank. With the funds raised, the community forest, which is found in the larger 6 million-acre Maya Biosphere Reserve, would be protected and generate wood for the promenade in perpetuity.
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The communities of Uaxactún have reached an agreement with the Guatemalan government: If resources are harvested sustainably, their land management rights are respected. Through a “community concession” system, the people of the forest can “harvest fruit, medicinal, and ornamental plants, chicle (a natural chewing gum), and a limited amount of timber,” said the Brooklyn Bridge Forest team. The communities coordinate with the Guatemalan government, the Wildlife Conservation Society, and FSC.
Under the terms of the land management plan, tropical hardwood trees can be harvested at the rate of 1 tree per 40 acres using small-scale equipment. After a large tropical hardwood tree has been removed, smaller trees would be planted in the area that has been disturbed.
The scientists with the conservation organizations involved argued that “the communities’ low-impact timber harvesting provides jobs as well as resources for health and education. These opportunities in turn have given the communities a long-term stake in protecting the forest. Community-patrols defend the forest from the numerous threats in the Maya Biosphere Reserve, including wildfires, illegal logging and hunting, and in recent years, cattle ranching operations linked to international drug traffickers.” (Learn more).
Furthermore, the scientists believe that the low-impact logging practices undertaken in Uaxactún would have “very little effect on wildlife populations.” And funds from the sponsorship of planks would go to important research on the ecological impacts of controlled logging in these environments.
One of their central arguments: “Most timber harvesting in the tropics is not carried out with the level of care practiced in Uaxactún. In these other places there is often very little regulation, no long-term plan, and no research to assess impacts. Only a fully transparent model with ample opportunity for participation and investigation can guarantee that we are procuring wood in a way that supports forest protection.”
The team thinks this intentional approach could be used for other sustainable hardwood harvesting projects. They point to a few historic models: Every 20 years, the Ise Shrine in Kyoto, Japan, is rebuilt with the exact same dimensions using 10,000 cedar logs. The shrine, which has been rebuilt in this way for the past 1,300 years, has set aside a forest that will be harvested in 200 years for the ritual reconstruction. And in Sweden, in the 1800s, some 300,000 trees were planted to create wood for the Swedish navy. When they were ready to harvest in 1975, Sweden no longer built ships out of wood, but the 900-acre forest of oaks remains preserved.
NYC government is rightfully trying to eliminate the use of tropical hardwoods in its boardwalks, as the vast majority of these woods are illegally harvested, causing great damage to fragile rainforest ecosystems. So it’s unclear whether the Brooklyn Bridge Forest concept will move forward. But also worth noting: recent efforts to replace the tropical hardwood boardwalk in Coney Island with more resilient concrete mixed with recycled plastic resulted in some irate New Yorkers.
The winning submission in the young adult category may have found a solution that avoids the tropical hardwood issue altogether. Do Look Down, a proposal created by Shannon Hui, Kwans Kim, and Yujin Kim, from Hong Kong, NYC, and Berkeley, California, aims to incorporate glass instead of wood for the promenade. There would be thrills galore while looking down, at least for those not afraid of heights.
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