A recent research study conducted by Bartlett Tree Research Laboratories tackled the question of the best methodology to grow trees in cities, with the ultimate goal of reaping benefits that mitigate the impact of climate change. The study (Comparison of Tree Responses to Different Soil Treatments Under Concrete Pavement) was produced by Dr. E Thomas… More
Introduction The question of how much soil is required to grow a big tree is one that has been debated among arborists and landscape architects for decades — and the answer isn’t black and white. Space, pollutants, and engineering requirements are all major considerations that affect the growing conditions of urban trees. And, other than… More
At DeepRoot, we promote large volumes of non-compacted, biologically active loam as essential for street tree health and longevity. Urban foresters generally adhere to the following minimums: 300 cubic feet for small trees, 600 cubic feet for medium trees, and 1,000 cubic feet for large trees. However, some municipalities are taking soil volume cubic feet… More
– Silva Cell is made primarily of virgin plastic because it guarantees quality, reliability, traceability, equality, and strength. – Recycled plastic and virgin plastic have distinguishable differences and potential advantages/disadvantages. – Silva Cell and other DeepRoot products are not single-use plastics (e.g., water bottles, single-use face masks, food wrappers, plastic grocery bags, plastic lids), which… More
Developing Green Infrastructure in Cities Requires a Paradigm Shift The imperative of dealing with climate change has generated the need for cities to develop “green” infrastructure. The development of green, environmentally ethical, infrastructure needs upstream support from politicians and policymakers to succeed. It also requires fundamental changes downstream to the way plans for streets and… More
We have a lot of resources about implementing minimum soil volumes for urban trees on this blog. Recently we’ve updated our list of municipalities that have a minimum soil volume standard. Trees need an adequate volume of root, oxygen-rich soil to thrive, and minimum soil volume policies are a powerful tool for arborists and other advocates… More
Contrary to recent actions taken by the Federal government, Washington D.C.’s local government has made unprecedented strides towards creating a cleaner, more sustainable future. The District of Columbia has recently emerged as an environmentally progressive leader and is actively working to reduce greenhouse gas emissions, support clean energy innovation, and focus on livability for all… More
Trees and sidewalks transform city streets into lush and inviting places to linger, to chat with a neighbor or enjoy the outdoors on a summer evening. As key pieces of urban infrastructure, they each invigorate a city in their subtle ways. Both provide health and economic benefits, and help to build character and support a… More
Why do we have green infrastructure? Is it simply a better way to manage stormwater in our cities – or are do regulatory drivers relating to stormwater discharges encourage its use? What are the impacts of our federal regulatory structure on market demands? All of these questions are related. If you live in a medium-sized… More
SITES is an ecosystem services framework for built landscapes. A decision-making hierarchy of conservation, restoration and generation underlies much of the SITES credits, emphasizing the need to conserve resources and protect healthy functioning systems, restore what has been degraded, and create a functioning ecosystem in order to generate new ecosystem services where none exist. This… More
Soil. Stormwater. Sustainable Infrastructure.
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