Sustainable Public Spaces: The Role of Landscape Architecture In Urban Resilience. Landscape architects can develop solutions that address many of these issues while focusing on urban resilience and sustainability. Earth.Org Rose MorrisonGlobal CommonsMar 20th 2025 A critical role of landscape architecture is creating pleasant places where people want to spend time and encourage others to join them. However, those designing these purposeful public spaces must also ensure they do not negatively affect ecosystems and they can withstand the challenges of the future. Otherwise, parks and other planned outdoor spaces could bear the adverse consequences of events such as floods, wildfires, and extreme heat. Some urban resilience specialists are also identifying ways to restore already damaged ecosystems. In Barranquilla, Colombia, planners are tackling the pollution in Leon Creek, which runs through the city’s center. Participants are reviving some 600 hectares of swampland that creates a natural barrier between the sea and the city, protecting its inhabitants against impending rising ocean levels. This effort involves planting more than 250,000 trees and creating more than 200,000 square meters of public space, according to the UN Environment Programme. Landscape architects can develop solutions that address many of these issues while focusing on urban resilience and sustainability. A critical role of landscape architecture is creating pleasant places where people want to spend time and encourage others to join them. However, those designing these purposeful public spaces must also ensure they do not negatively affect ecosystems and they can withstand the challenges of the future. Otherwise, parks and other planned outdoor spaces could bear the adverse consequences of events such as floods, wildfires, and extreme heat. Some urban resilience specialists are also identifying ways to restore already damaged ecosystems. In Barranquilla, Colombia, planners are tackling the pollution in Leon Creek, which runs through the city’s center. Participants are reviving some 600 hectares of swampland that creates a natural barrier between the sea and the city, protecting its inhabitants against impending rising ocean levels. This effort involves planting more than 250,000 trees and creating more than 200,000 square meters of public space, according to the UN Environment Programme.
The Role of Landscape Architecture.....Landscape architecture combines science, design, architecture, engineering and art to create sustainable public spaces for everyone to enjoy. Numerous aspects increase the appeal of these public space projects – from intentional design, clear signage and well-maintained natural features to safety features like good lighting and handrails. Community events like classes or festivals as well as programs and amenities that promote connection with nature are also key. Landscape architecture can also improve the lives of people living along city streets. Teams associated with a non-profit organization in Portland, Oregon, planted 49,246 trees along city streets between 1990 and 2019, tracking when and where they planted each one. When researchers published the results in 2022, they found each tree caused a 20% reduction in non-accidental mortality rates and a 6% decline in cardiovascular deaths. Additionally, researchers found the association strengthened as the trees grew, highlighting the importance of preserving existing urban trees whenever possible.
Sustainable Public Spaces: The Role of Landscape Architecture In Urban Resilience.
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Case Study: Munich, Germany....... Researchers performed work centered on urban spaces in Munich, Germany, and how various aspects affect the surrounding flora and fauna. They examined 103 public squares and assessed factors such as the size, amount of artificial light, and abundance of plants, trees and grassy areas. The results, published in late 20204, varied tremendously depending on whether landscape architects opted for more enclosed spaces or for open and park-like space. One location in the former category had only 20 species counted, while another with numerous bushes, hedges, and trees contained 156. Almost all identified species benefited from grassy spaces because they contain soil organisms that birds and hedgehogs eat. However, some variations existed, with particular species enjoying the city center’s heat and others finding refuge in its cooler outlying areas. Rather than applying the same urban landscape architecture principles to every location by following a set pattern, the team recommended that professionals maximize biodiversity benefits by accounting for local conditions and species’ needs. Intentional choices can attract wildlife and make these destinations more pleasant and interesting for humans. That is especially true if some take advantage of the educational opportunities of sharing spaces with the area’s creatures and plant life.
Designing Sustainable Public Spaces.......As planners design public space projects, they learn how strategically included elements can have major payoffs. For example, statistics show green roofs offer a 224% return on investment. They also last longer than conventional roofs and can be simple to maintain, depending on the type. These additions are ideal for promoting urban resilience because they can reduce greenhouse gas emissions and air pollutants. Similarly, green walls let landscape architects take advantage of vertical space. Some innovators are making it easier than ever to integrate these into public urban spaces. One example comes from a German-Austrian team that developed modular green walls weighing under 50 kilograms per square meter, which allow people to add or remove plants attached to panels. In addition to bringing green walls to areas lacking suitable architecture, this method lets planners choose greenery depending on how much sun an urban spot receives. Permeable pavements and rain gardens promote urban resilience and sustainability, too. Both options reduce stormwater runoff, while rain gardens are low-maintenance spaces that attract wildlife. Indian officials in Hyderabad, the capital and largest city of the Indian state of Telangana, believe installing permeable pavements in public areas will address Greater Hyderabad’s groundwater depletion problem. Last year, they announced a pilot project involving a public sidewalk. If authorities deem that effort successful, they may require all new paved areas to include permeable materials. The upcoming project also sources surface materials from recycled construction and demolition waste, allowing participating locations to engage in the circular economy.
Case Study: New York City.......Rising population growth can prevent urban residents from easily accessing public spaces. However, a project led by the New York City Department of Transportation highlights how the most sustainable way to invest in urban resilience may be to establish partnerships that share the duties of keeping these locations welcoming and functional.....read on https://earth.org/