If you’re involved with an urban development project, chances are trees are also involved in some way, depending on the local municipal codes. Existing trees may need to be protected or require a permit for removal. Many municipal codes require a Certified Arborist to evaluate all or some of the trees on site and write… More
Urbanization is occurring rapidly – not just in the United States, but globally – and squeezing people, transit, and housing into denser and denser areas. This shift isn’t just about buildings and roads, of course, it also affects the way we plan, integrate, and care for urban nature. Given that trees and plants are more… More
Nothing epitomizes the spirit of the Pacific Northwest quite like wild Pacific Salmon. If you don’t live in this amazing part of the world, let me explain: Salmon and the clean water and healthy forests they rely on are integral to the quality of life that west coast residents love, cherish, and dream of when… More
Research shows that tree stormwater control measures (SCMs) provide excellent stormwater benefits. With trees, however, come leaves – and leaf litter that falls on impervious street surfaces can actually add unwanted nutrients to stormwater runoff (leaf litter provides many benefits on pervious surfaces). The contribution of leaf litter to nutrients in stormwater runoff is more… More
What’s happening in Texas? As far as we can tell, a lot. The Lone Star state is making some huge investments in sustainable development, including green infrastructure. L. Peter MacDonagh, FASLA – who has visited the state many times over the years, and twice in the last few months to speak about using trees and soils… More
Cities are the cultural and economic centres of the world whose progress depends upon effective management and evidence-based policy making.” – ISO 37120 Briefing Note “Unless someone like you cares a whole awful lot, nothing is going to get better. It’s not” – Dr. Seuss, The Lorax Cities are growing rapidly and we all have a… More
We spill a lot of ink on this blog on topics like policy, history, research, and opinion as they relate to green infrastructure. That’s great – and we’re going to keep doing it! – but where trees are concerned, sometimes it’s before and after photos that tell the most compelling story. Pictures document change in a… More
In anticipation of the American Society of Landscape Architects tradeshow later this week, today we’re highlighting an iconic tree planting project using suspended pavement – including archival photos and original section details – that took place in Denver in the early 1980s: the 16th Street Mall. -LM Denver has long been a place of significance in the… More
Mississauga Civic Centre is a 37,280 square meter complex that houses the Mississauga City Hall, a towering monument of post-modern architecture designed by Edward Jones and Michael Kirkland that opened in 1987. Although it received numerous accolades, the surrounding campus and Civic Square suffered from mid-century design perspectives on public spaces, catering toward keeping people… More
Last month we shared a “To 10 Takeaways” blog post about the Soil in the City conference earlier this summer. Today we’re sharing the Top 10s of another conference – the International Society of Arboriculture, held in Milwaukee, WI from August 2nd to August 6th – again compiled by L. Peter MacDonagh, FASLA. This list is a… More
Specifications and details are required elements of the design and construction process – they’re what ensure the proper components get built in the right place and to the right standards. Yet for trees, all too often the details and specifications don’t actually depict conditions that are optimal for growth. ANSI A300 established standard tree planting… More
Pacific Northwest readers, take note. James Urban, FASLA and four other presenters will be leading an Up by Roots workshop at the Center for Urban Horticulture in Seattle on October 15th. This one-day workshop will highlight the principles of soil science and their use in facilitating the growth of healthy trees and developing water efficient landscapes. Healthy… More
Soil. Stormwater. Sustainable Infrastructure.
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