How Much Soil Do You Need to Grow a Big Tree?

It seems pretty universal that everyone likes trees. We find them pretty, and calming, and they make us feel healthy. Space, pollutants and engineering requirements are all major factors that affect the growing conditions for urban trees. But other than picking a climate-appropriate tree, soil availability is one of the biggest elements in their success… More

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What is Soil Structure and Why is it Important?

A previous blog entry, Healthy Soils for Healthy Trees, discussed the importance of preserving soil structure from being destroyed by compaction. Together, soil texture and soil structure have the greatest influence on pore space in soil, and how easily air, water, and roots can move through a soil. Many people are aware of what soil… More

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UK Soil Volume Status for Urban Trees

Trees do a tremendous amount for our communities in a number of essential ways. Unlike a streetlamp or a water main, their influence is diffuse— they affect everything from air and water quality, to flooding, to temperatures, to property values and incidence of crime. Urban trees are under more pressure and facing greater challenges to… More

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Horticultural Myths Exposed

Horticulture is the art of cultivating. Garden herbs, plants, produce, flowers, fruits, nuts, and trees all fall under the horticulture category. The common denominator in all of these is soil. One of DeepRoot’s favorite industry leaders and researchers of healthy soil and effective horticulture is Dr. Linda Chalker-Scott. Dr. Chalker-Scott is an Extension Urban Horticulturist… More

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Tree Roots Improve Soil Infiltration Rates

As discussed in previous blogs, tree and soil provide stormwater benefits in many different ways: Cleansing:  Trees clean stormwater through many different mechanisms, including filtration, adsorption, and plant uptake. Interception: Interception is the amount of rainfall temporarily held on tree leaves and stem surfaces. This rain then drips from leaf surfaces and flows down the… More

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How Does Soil Differ Across Earth’s Biomes?

Ecologists group large geographic regions with similar environments and distinctive plant and animal communities into biomes. The environmental factors influencing biomes include latitude, the general climate and topography of the region, and soil. Soil is the foundation of every terrestrial ecosystem. Each biome has soils with characteristics unique to it. 

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The Most Important Factor for Growing Healthy Trees

Many factors affect tree health. Are they all equally important or are some more important than others? According to Kim Coder, PhD, Professor of Tree Biology & Health Care at the University of Georgia, soil compaction is by far the biggest constraint on tree growth. In a 2007 paper, he wrote, “Soil compaction is the most… More

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Silva Cell’s Support 167 trees in Downtown Minneapolis: A Case Study

– Silva Cells solved the 2009 CSO stormwater transition during the Marquette and 2nd Avenue (MARQ2) busway project, mitigating stormwater runoff. – Over 167 trees were installed along 48 blocks of downtown Minneapolis each with 588 ft3 (16.6 m3) of soil volume. – Above ground, the trees provide shade, clean air, and beauty. Below ground,… More

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Green Infrastructure and the 3 Cs: 300 Front St. Case Study, Toronto

Creating a Standard for a Green Infrastructure Sidewalk This is the first of a series of five posts featuring case studies that illustrate the need for a paradigm shift for how streets and sidewalks are designed and constructed. This new paradigm for Green Infrastructure is based on Creativity, Collaboration, and Compromise (CC&C), and is demonstrated… More

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