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Archive for the ‘INVASIVE SPECIES’ Category

BY ANNE RAVER

Two closely related Asian beetles are boring their way through Southern California’s trees.

FROM THE MARCH 2018 ISSUE OF LANDSCAPE ARCHITECTURE MAGAZINE.

Smaller than sesame seeds, two beetle species are spreading through Southern California, killing hundreds of thousands of trees and infecting many thousands more with a pathogenic fungus.

At first, scientists thought the pests were the same species because they look exactly alike, but they carry different pathogenic fungi, and DNA analysis revealed genetic differences. But their damage to trees is so spectacularly similar that the two beetles—the polyphagous shot hole borer and the Kuroshio shot hole borer—are now referred to collectively as the invasive shot hole borer (ISHB).

A 2017 U.S. Forest Service survey estimated that 23 million trees are vulnerable to the ISHB that is working its way through Los Angeles, Orange, Riverside, and San Bernardino Counties—or 33 percent of Southern California’s urban canopy. It’s impossible to know how many trees will die, but the projected losses are catastrophic. (more…)

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It’s the first, which means March’s issue of LAM is here! You’ll find these stories inside:

FOREGROUND

The Tiny Menace (Ecology)
The shot hole borer is having a deadly impact on California’s trees.

Raleigh Finds Its Inner Self (Planning)
New plans for downtown in Raleigh, North Carolina, could help move the
sprawling city beyond its complicated past.

Mind, Soul, Design (Palette)
The landscapes of Virginia Burt, FASLA, are grounded in practicality.

FEATURES: GGN PORTFOLIO

Drawn Together
The pursuit of excellence is embedded in the culture of GGN.

The Streets Are Back
CityCenterDC restores a historic downtown grid that had vanished for years
beneath a convention center.

Promised Land
GGN’s landscape for the National Museum of African American History and Culture
is both leveling and welcoming.

 Extended View
For the University of Washington’s Lower Rainier Vista,
GGN finishes a job that John Charles Olmsted started.

All this plus the regular Now and Goods columns. The full table of contents for March can be found here.

As always, you can buy this issue of Landscape Architecture Magazine at more than 700 bookstores, including many university stores and independents, as well as at Barnes & Noble. You can also buy single digital issues for only $5.25 at Zinio or order single copies of the print issue from ASLA. Annual subscriptions for LAM are a thrifty $59 for print and $44.25 for digital. Our subscription page has more information on subscription options.

Keep an eye out here on the blog, on the LAM Facebook page, and on our Twitter feed (@landarchmag), as we’ll be posting March articles as the month rolls out.

Credits: “The Streets Are Back,” Catherine Tighe; “Promised Land,” Alan Karchmer/NMAAHC; “Extended View,” GGN; “Drawn Together,” GGN; “The Tiny Menace,” Courtesy the Huntington Library, Art Collections, and Botanical Gardens/Maxx Echt; “Mind, Soul, Design,” Richard Mandelkorn; “Raleigh Finds Its Inner Self,” City of Raleigh.

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As part of an ongoing effort to make content more accessible, LAM will be making select stories available to readers in Spanish. For a full list of translated articles, please click here.

Click above for a full PDF of the translated text with English text available below.

BY JONATHAN LERNER

FROM THE FEBRUARY 2018 ISSUE OF LANDSCAPE ARCHITECTURE MAGAZINE.

Atlanta’s Fernbank Museum of Natural History occupies a formidable 1992 postmodernist structure by Graham Gund Architects. Visitors enter through a lobby that looks down into an octagonal atrium dominated by enormous dinosaur skeletons posed as if on the brink of carnage. Beyond the atrium’s glazed rear facade is a narrow concrete terrace. Then the ground behind the building pitches steeply down 45 feet to a creek. So from inside, there’s a horizontal view straight out into the tree canopy, a promise of respite from the vaguely daunting scale and sense of menace inside.

This wooded ravine, which is sort of the reason the museum exists, was neglected and inaccessible until a recent intervention by Sylvatica Studio. Now, beginning right at the atrium’s back doors and set into the terrace’s pavement, the wooden planking of an elevated walkway leads into the trees. Not far along the walkway, just visible where it turns, a 26-foot-high, latticelike but curvilinear “tree pod” beckons from the midst of branches and leaves. Its shape and color mimic the blossom of the tulip tree, a common tree in these woods. The pod is a place to stop, or sit, gently protected by its rounded tracery. But it also offers a sweeping panorama down to the creek and streamside meadow. “It’s 35 feet off the ground. We wanted people to feel slightly—not afraid—but thrilled. ‘What is this experience I’m having?’” explains Sylvatica’s founder, Susan Stainback, ASLA. (more…)

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BY JANE BERGER

There’s a lot to love about bamboo.

FROM THE NOVEMBER 2017 ISSUE OF LANDSCAPE ARCHITECTURE MAGAZINE.

Thousands of lucky San Franciscans will soon be walking through a bamboo forest on their way to and from towering glass buildings in the city’s Mission District. Groves of giant Japanese timber bamboo (Phyllostachys bambusoides) are a stunning horticultural statement in a 5.4-acre park atop the new Transbay Transit Center, scheduled for completion later this year. It’s just one more sign of bamboo’s increasing popularity, despite its bad reputation.

The park, long and skinny, is 70 feet aboveground and extends four blocks, with public access by bridges that connect with adjacent skyscrapers, by gondola from street level, or by escalator, elevators, and stairways inside and outside the building. Adam Greenspan, ASLA, a partner at PWP Landscape Architecture, explains that no matter what level people are on, “we wanted them to see that there was an inhabitable landscape up on the roof.”

The dominant feature of the Transit Center is a light tower that extends from the grand concourse at street level up to the roof, where its glass dome is surrounded by bamboo. Greenspan says he selected Japanese timber bamboo because it allows for “transparency and translucency,” and when you’re inside the building, “you get a bit of filtered light through foliage and through stems and culms.” Up on the roof is a “transparent scrim of green.” The bamboo is planted in a concrete basin about four feet deep, which sequesters the bamboo’s rhizomes so they (more…)

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Technologist landscape architects rejoice—the November issue of LAM is packed with imagined scenarios, myth breakers, and tantalizing possible futures for urban design. Whether or not autonomous vehicles will allow for utopian cities of tomorrow depends on careful planning and policies today, says writer Brian Barth. And the future of autonomous vehicles might not look as green as we’re imagining. A new landscape by Ki Concepts on Honolulu’s Ford Island—site of the Pearl Harbor attack in World War II—weaves the richly layered history of the site into a sleek, cohesive design. And a new streetscape redesign by CRSA in the Sugar House business district of Salt Lake City turns a large thoroughfare into an inviting multimodal streetscape.

In Materials, Jane Berger discusses the stigma—and benefits—of the often-misunderstood bamboo. And in Tech, geodesign unites academics and agriculturists in the pursuit of the most optimal yield for their yearly crops. All this plus our regular Books, Now, and Goods columns. The full table of contents for November can be found here.

As always, you can buy this issue of Landscape Architecture Magazine at more than 700 bookstores, including many university stores and independents, as well as at Barnes & Noble. You can also buy single digital issues for only $5.25 at Zinio or order single copies of the print issue from ASLA. Annual subscriptions for LAM are a thrifty $59 for print and $44.25 for digital. Our subscription page has more information on subscription options.

Keep an eye out here on the blog, on the LAM Facebook page, and on our Twitter feed (@landarchmag), as we’ll be posting November articles as the month rolls out.

Credits: “The Retraining of Salt Lake City,” CRSA; “Before and After Pearl Harbor,” Alan Karchmer; “Dream Cars,” Illinois Institute of Technology; “Raising Canes,” OvS; “Models of Collaboration,” Len Kne. 

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You can almost watch it come to life on the page: In the sprawl of Bangkok, an illegal dump the size of a large city block was scraped clean, sculpted, and planted thickly with 60,000 trees, many of them quite small. It now looks thick as a rain forest, with an elegant skywalk overhead and cobras on the ground (which is why you’d use the skywalk). This remarkable reforestation project, called the Metro-Forest, by Landscape Architects of Bangkok, repatriates more than 275 species once common enough locally, as James Trulove reports, that sections of the city around it bear their names. Thick as it appears, it’s only getting started. The plan is for the trees to engulf the skywalk in their canopy.

How to describe the vindication of taking an embarrassed site and bringing back some form of its original dignity? “Strangely exciting,” is how Gwendolyn McGinn, Associate ASLA, puts it to the reporter Anne Raver in this issue. McGinn, of Studio Outside, in Dallas, is working at the Tylee Farm in Texas, not far from Houston. The farm holds what is left of southern post oak savanna that was overturned and grazed nearly to death since the mid-1800s. With Studio Outside’s founder, Tary Arterburn, FASLA, and Amy Bartell, a project manager, she is working to restore the many ecological segues the site once had for newish residential owners who want to live well—as long as their land does, too.

Also in this issue: Staff writer/editor Katarina Katsma, ASLA, writes about the interlocking of plant science and aesthetics in the designs of Sandra Clinton, FASLA, in the mid-Atlantic; Jeff Link looks at the fine points of poured-in-place rubber playground surfacing; Karl Kullmann considers the new heights of drone mapping; and Jane Gillette reviews City of Refuge: Separatists and Utopian Town Planning by Michael J. Lewis, a book that will leave you thinking about squares. The full table of contents for May can be found here.

As always, you can buy this issue of Landscape Architecture Magazine at more than 700 bookstores, including many university stores and independents, as well as at Barnes & Noble. You can also buy single digital issues for only $5.25 at Zinio or order single copies of the print issue from ASLA. Annual subscriptions for LAM are a thrifty $59 for print and $44.25 for digital. Our subscription page has more information on subscription options.

Keep an eye out here on the blog, on the LAM Facebook page, and on our Twitter feed (@landarchmag), as we’ll be ungating May articles as the month rolls out.

Credits: “Control of the Canopy,” Rungkit Charoenwat; “Side Pocket,” By oinonio [CC BY-SA 2.0] via Flickr; “Along for the Ride,” Gwendolyn McGinn, Associate ASLA; “Color and Cushion,” Site Design Group; “The Right Fit,” Huguette Row.

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BY ZACH MORTICE

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All photos by Jose Ahedo.

Over the course of two years, the Spanish architect Jose Ahedo visited livestock farming landscapes in eight countries: Mongolia, China, Paraguay, Germany, India, Bolivia, New Zealand, and the Azores Islands in Portugal. He traveled 90,000 miles by plane, 9,000 miles by car, 23 miles by boat, nine miles by horse and camel, and—most excruciatingly for a vertigo sufferer like Ahedo—56 miles by hot air balloon. Documented through his photography and funded by a $100,000 Harvard Graduate School of Design Wheelwright Prize Fellowship, his travels kept him on the move for 103,000 miles.

Ahedo selected these disparate locations so that he could witness the extreme “asymmetry,” he says, in how cultures in different places with different levels of development produce livestock. “You have people that move on horses, and (more…)

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