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Posts Tagged ‘Saltwater’

BY ZACH MORTICE

The Kua Bay Residence is a simple pitched roof pavilion that works as an enticing collector of ocean views. Photo by Marion Brenner, Affiliate ASLA.

More than half of the world’s anchialine ponds are located on Hawai‘i, also known as the Big Island. They’re formed when fresh water flows downward toward the ocean through porous volcanic rock and mixes with salt water pushed inland by wave action. Where the shoreline dips below sea level with sizable crevices, pools of water are exposed at the surface. It’s a brackish mix, though the salinity can vary, as can the depth and size of anchialine ponds. Some can be more than a dozen acres wide; others are smaller than a bathtub. These pools were vital to native Hawaiians, who would harvest shrimp (such as the ‘ōpae‘ula red shrimp) for food or bait, or use larger ponds closer to shore with higher salinity levels as fishponds. Freshwater ponds were used for drinking water and bathing.

Anchialine pools are characteristic of the landscape of the Big Island, the site of the Kua Bay Residence, and were a source of inspiration for its landscape architect, Ron Lutsko Jr., ASLA, of San Francisco-based Lutsko Associates Landscape. Like the pools themselves, the project has an intimate connection to water defined by the rock-face crevices at its border, and it offers cloistered shelter for local and native species amid an otherwise beautifully barren landscape. The project is a recipient of both a Northern California ASLA award and, most recently, a 2019 ASLA Professional Award. (more…)

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FEATURE: We Declare

Reformulating a historic agenda after half a century.

FROM THE MAY 2016 ISSUE OF LANDSCAPE ARCHITECTURE MAGAZINE.

 

At Independence Hall in Philadelphia in June of 1966, Ian McHarg, Grady Clay, Campbell Miller, Charles R. Hammond, George E. Patton, and John O. Simonds presented “A Declaration of Concern” on behalf of landscape architecture, reproduced below. It was a statement on the growing crisis in the natural environment and the claim of landscape architects in averting the environment’s total destruction. To the degree the declaration was dramatic and self-regarding, it was also true. It preceded much of the formal regulatory protection—preventive, punitive, and remedial—of resources that we know now. The declaration’s alarm over pollution and ecological ruin speaks for itself, but it managed to be both critical and optimistic. Its hope lay in the ability of landscape architects to figure out across disciplines how to make nature and society work as a whole, healthy system.

In 2016, the Landscape Architecture Foundation marked the half century of “A Declaration of Concern” with “The New Landscape Declaration,” a gathering of landscape architects, scholars, and advocates at the University of Pennsylvania in June of that year. The foundation, which was also turning 50, asked a number of participants to write declarations of their own for the occasion as latter-day responses to the original. Five are linked to below. Landscape architects have by no means retired the threats of 50 years ago, and other threats have proliferated around them, but the moral vision of the profession conceived at the midcentury has enlarged accordingly.

“A Declaration of Concern—June 1966” 

We urge a new, collaborative effort to improve the American environment and to train a new generation of Americans equipped by education, inspiring example, and improved organizations to help create that environment.

A sense of crisis has brought us together. What is merely offensive or disturbing today threatens life itself tomorrow. We are concerned over misuse of the environment and development which has lost all contact with the basic processes of nature. Lake Erie is becoming septic, New York City is short of water, the Delaware River is infused with salt, the Potomac River with sewage and silt. Air is polluted in major cities and their citizens breathe and see with difficulty. Most urban Americans are being separated from visual and physical contact with nature in any form. All too soon life in such polluted environments will be the national human experience. (more…)

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BY ZACH MORTICE

Texas National Guard and Texas Task Force responders conduct aerial search and rescue in Rockport, Holiday Beach, and the Port Aransas area. Image courtesy of Wikimedia Commons, photo by the Texas National Guard.

An unprecedented storm that dumped more than 50 inches of rain onto Texas over just a few days, Harvey was the kind of hurricane that worsening climate change promises to bring back for a sequel. And if and when that happens, the next round of  recovery and resilience calculus might best begin with the results of the National Science Foundation’s series of research grants dedicated to studying the storm’s effects.

Last month, the agency handed out just over $5 million across 59 research projects prompted by Hurricanes Harvey and Irma, including several that deal with the ecological and landscape fallout of catastrophic storms. Each promises to generate valuable information about flora and fauna left reeling from extreme weather events. But these studies (four of which are detailed here) are even more vital as mile markers down the path toward a future besieged by climate change—either as guidance on forestalling it or living better within its confines.

Anna Armitage of Texas A&M Galveston is studying how the transition from salt marsh wetlands to mangroves might change how hurricanes affect the coast. In Texas, low, marshy wetlands are common, whereas dense mangroves are rare. That balance is shifting, however, as climate change heats up these ecosystems. As mangroves expand their footprint, Armitage (and researchers at Florida International University and the University of Houston) wonders if they might offer coastal ecosystems and human settlement more protection from hurricane winds and rain—at a cost of biodiversity. “It probably doesn’t provide the same value for birds, fish, and shrimp,” she says.

Climate Change Big Picture: If mangroves do offer more protection for coastal ecosystems in a climate of increasingly severe storms, then Armitage says the next question is, “Should we be planting them in restoration sites?” These kinds of “living shorelines,” she says, could be “more resilient, longer-lasting, and nicer looking protection for our communities” than concrete barriers.

Grant amount: $122,935

Paul Montagna of Texas A&M Corpus Christi is studying the inundation of fresh water (via rainfall) into saltwater ecosystems that Hurricane Harvey caused. From initial measurements after the rain, he’s observed increased amounts of dissolved organic matter in these waterways, and has seen (more…)

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BY ZACH MORTICE

Galveston Island State Park in the year 2060. Image courtesy of Studio Outside/Google Earth.

This is Part 3 of our conversation about Hurricane Harvey with the design team at Studio Outside in Dallas, which has won a 2017 ASLA Professional Award for Analysis and Planning for its work on Galveston Island State Park. Part 1 and Part 2 can be found below. Correction appended below on August 28.

Studio Outside’s resiliency plan for Galveston Island State Park earned a 2017 ASLA Professional Award for Analysis and Planning, drawing praise from the jury for its comprehensive and forward-looking anticipation of the havoc a hurricane could release. But Studio Outside’s Andrew Duggan and the design team, led by principal in charge Mike Fraze, knew they were pondering ironclad eventualities, not hypothetical disasters.

Over the weekend, the city of Galveston and Galveston Island State Park to its southwest found themselves in the path of Hurricane Harvey, which made landfall on Friday night, a Category 4 storm that has prompted mass evacuations of the Houston region.

Studio Outside’s project, “Storm + Sand + Sea + Strand: Barrier Island Resiliency Planning for Galveston Island State Park,” tracks the loss of habitat and land as perpetuated by sea-level rise, encroaching development, and hurricane flooding. It prescribes soft and green natural barriers to storm surges, assisted by flexible infrastructure. As a barrier island bordered by Texas’s West Bay to the northwest and the Gulf of Mexico to the southeast, there are few places to hide from floodwaters or to absorb them, and even less given that this part of the island was partially paved over to accommodate RVs in the 1970s. On Friday and over the weekend, Duggan (based safely in Dallas) and members of the design team (Fraze and Duggan of Studio Outside, and Jennifer Dowdell and Ed Morgereth of Biohabitats) emailed LAM some thoughts on how the storm might play out for Galveston Island State Park.

****Post will be updated as the storm progresses**** (more…)

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