Thanks to widespread efforts to raise awareness of the large declines in bee and Monarch butterfly populations, most people are aware of the need to protect pollinators. Monarch butterfly populations have declined 90% in the last 20 years. Bees and other pollinators are in trouble too. Primary causes of the drastic declines in pollinator populations… More
Having started with the simplest ways to quantify stormwater benefits of Tree Stormwater Control Measures (SCMs), we now arrive at the most complex ways. Part 1 of this series provided an overview of various ways to quantify stormwater benefits of Tree Stormwater Control Measures (SCMs), and gave an overview of tree benefits calculators and stormwater… More
Trees and soil have the potential to provide significant stormwater benefits. Trees are also valued for many other benefits, and are already part of virtually all development. They can be integrated even into the densest urban areas – and many cities have tree requirement ordinances, so trees are not only desired, but also mandatory. It… More
In March we hosted a webinar where Jonathan Page, an engineer working in Dr. Bill Hunt’s lab at North Carolina State University (NCSU), provided a stormwater engineering perspective on the design principles, treatment processes, and implementation of using Silva Cells as a stormwater control measure. Current research findings and a design case study were included in… 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
Regular readers may have followed our articles on the monitoring results of the two Silva Cell systems in Wilmington, North Carolina by Dr. Bill Hunt’s lab. Jonathan Page is an Extension Engineer in Dr. Hunt’s lab and was involved in the data collection, analysis, and writing for this project. He holds a B.S. degree in Civil… More
Curtis Hinman is a senior scientist with Herrera Environmental Consultants in Seattle, WA. Before joining Herrera, Curtis was faculty with Washington State University (WSU) Extension and the Department of Biological Systems Engineering, and was the University’s Green Stormwater Infrastructure Specialist. With WSU he co-designed and was lead scientist for the WSU Low Impact Development (LID)… More
In part 2 of this series, I gave an example of an i-tree study that analyzed the Chicago Region and encompassed seven counties. But i-Tree tools work on a much more granular level as well, so today I want to discuss about a study that looks at just one city: my hometown of Minneapolis, MN…. More
So you want to understand your urban forest better. Maybe it’s that you want to make the business case for its value, or understand where your tree canopy is strong and where it could still use work to help guide policy or budget decisions. In part 1 of this series, I gave a cursory overview… More
I meet many people in the landscape architecture community who have heard of i-Tree… but don’t really know what it does. Basically, i-Tree is a suite of tools designed to quantify the structure of a community forest as well as the environmental services provided by that forest. It can be used at a wide range… More
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