{"id":138562,"date":"2024-08-08T16:44:00","date_gmt":"2024-08-08T15:44:00","guid":{"rendered":"https:\/\/greenblue.com\/?p=138562"},"modified":"2024-08-08T16:53:31","modified_gmt":"2024-08-08T15:53:31","slug":"are-we-providing-mature-street-trees-for-future-generations","status":"publish","type":"post","link":"https:\/\/greenblue.com\/ce\/are-we-providing-mature-street-trees-for-future-generations\/","title":{"rendered":"Are We Providing Mature Street Trees for Future Generations?"},"content":{"rendered":"

The canopy cover of many cities across Canada and around the world is made up of large, mature trees. In North America, most of these trees were planted in the late 1800s to early 1900s, making them well over 100 years old. Thankfully, our grandparents and great grandparents understood the value of trees and had the foresight to provide them for the upcoming generations.<\/p>\n

\"\"
The original street tree.<\/figcaption><\/figure>\n

At the time many of these trees were planted, our roadways were narrow and typically made of dirt or cobblestone. Road construction in this era didn\u2019t involve large construction equipment, and trees planted next to and within these environments had access to soil that was adequality aerated and irrigated.<\/p>\n

Today these old trees are valued by the citizens, and we continue to plant them on developments large and small.<\/p>\n

However, there are many challenges in today\u2019s urban environment that limit these newly planted trees from reaching maturity. Road widening and development has resulted in an increase in areas of impervious pavement, compacted soils and a decrease in open planting areas.<\/p>\n

Over the years, we have learned that our roadways require a heavily\u00a0compacted subbase to ensure structural stability<\/a>. This has led to the development of compaction standards and testing methods, such as Standard Proctor Density. These compaction levels are achieved by heavy construction equipment, that in turn removes almost all voids from the soil and creates a soil profile almost impossible for roots to penetrate. Soil under pavement and sidewalks typically has to be compacted to 95-98%, whereas tree roots will generally only grow in soil compacted to less than 80%.<\/strong><\/p>\n

\"\"
The current standard of US tree planting.<\/figcaption><\/figure>\n

As roadways were expanded, they increasingly encroached on the critical root zone of the trees, and over time these trees often fail due to this decrease in quality root zone area. There are many myths that tend to drive this way of thinking, such as: \u201cthe root system only extends to the dripline of the tree\u201d, \u201cthe tree roots will go as deep as the tree is tall\u201d, and \u201ctrees have tap roots\u201d. Of course, you don\u2019t have to have a degree in arboriculture to see that these are truly myths.<\/p>\n

\"\"
As roadways expand, grey infrastructure encroaches on the existing root zone of street trees.<\/figcaption><\/figure>\n

Little by little, these large trees are dying and unfortunately, many of them cause substantial property damage as they fall, which leads to an increased liability to cities and property owners. This increase in liability often leads to cities and property owners removing these trees and replacing them with new smaller trees. Consideration that these newly planted trees need adequate soil to grow and mature is often forgotten. Instead, they\u2019re regularly planted in cramped planting pits (usually as small as 1.2 x 1.2 meters) which provides a grossly insufficient growing space for their roots.<\/p>\n

After experiencing the continued failure of trees planted in this environment, designers and municipalities often turn to GreenBlue Urban and ask, \u201chow can we ensure that we are providing the best possible environment so that our trees can reach maturity?\u201d<\/p>\n

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Our comprehensive ArborSystem, which includes root barriers, an innovative irrigation system, and secure below-ground anchoring, ensures your trees will be given the best chance at establishment.<\/figcaption><\/figure>\n

The knowledge and understanding of what trees require is available, and there are systems on the market that provide these requirements in even the harshest urban environments \u2013 so how do we change this cycle?<\/p>\n

Firstly, an understanding of the value and benefits of mature trees at the government level can help significantly. Providing this understanding could include education sessions for those involved in the planning, development and maintenance of our urban areas. Arborists and industry professionals should be included in these sessions. Once municipalities and other local authorities understand the social, economic, and environmental benefits of trees, they can develop realistic and sustainable tree planting standards and ordinances. Many cities across North America have already put these kinds of standards in place or are drafting such standards.<\/p>\n

Within these standards, specific guidance should be included, like appropriate species list, soil volume guidance and planting best-practices. \u00a0Public workshops with the community and developers can also be held to educate stakeholders, and community-wide tree care programs can be developed to care for the trees and ensure that they provide for future generations.<\/p>\n","protected":false},"excerpt":{"rendered":"

The canopy cover of many cities across Canada and around the world is made up of large, mature trees. In North America, most of these trees were planted in the late 1800s to early 1900s, making them well over 100 years old. Thankfully, our grandparents and great grandparents understood the value of trees and had […]<\/p>\n","protected":false},"author":0,"featured_media":138558,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"content-type":"","footnotes":""},"categories":[839],"tags":[],"class_list":["post-138562","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-urban-trees-arboriculture-ce"],"acf":[],"yoast_head":"\nAre We Providing Mature Street Trees for Future Generations? - GreenBlue Urban<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/greenblue.com\/ce\/are-we-providing-mature-street-trees-for-future-generations\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Are We Providing Mature Street Trees for Future Generations? - GreenBlue Urban\" \/>\n<meta property=\"og:description\" content=\"The canopy cover of many cities across Canada and around the world is made up of large, mature trees. 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