A centerpiece of the i-Tree suite of tools, Landscape calculates the multiple benefits delivered by a community’s trees — from stormwater reduction, improved air quality, heat island abatement, student performance and public health. Users can overlay demographic indicators to determine where adding tree canopy can provide the most benefit to neighborhoods that need it most.
This guide is intended to help engineers, planners, developers, architects, arborists, and public officials understand how trees perform and interact in a stormwater management system, and the new technologies that are being used to increase the stormwater utility function of the urban forest, even in the densest urban environments. The presence of trees in a streetscape, neighborhood, and community can decrease the amount of stormwater runoff and pollutants that reach local waters.
Bioswales are a critical component of a water-sensitive urban design (or a low-impact urban design), and incorporation of trees into these green infrastructural components is believed to be a novel way to return stored water to the atmosphere via transpiration. This research was conducted in The Morton Arboretum’s main parking lot, which is one of the first and largest green infrastructure installations in the midwestern United States. The parking lot is constructed of permeable pavers and tree bioswales. Trees in bioswales were evaluated for growth and condition and for their effects on water cycling via transpiration.
From rain barrels to conservation landscaping to tree canopy, Montgomery County, MD has produced a comprehensive handbook with step-by-step instructions on how to implement home-sized stormwater management programs. Most can be implemented by the homeowner; some may require contractor assistance. In cases where contractors are required, the guide lists some of the criteria you might chose to select one.
The following methodology was developed to identify potential flooding issues and solutions for communities in the Chicago region. The aproach uses a data-driven process at the planning level to integrate stormwater management into decisions about land use and development.
EPA synthesizes the various ways costs and benefits of gray and green infrastructure can be assessed and compared. A must read for newcomers to the issue; it makes a powerful case, and shows how others can do the same. Complete document offers case studies, tools, calculators and extensive resource materials.
Trees and forests have a natural ability to reduce stormwater runoff. As more and more communities encourage or even require the use of natural vegetative systems as part of their stormwater management programs, municipal planners and engineers require technical tools that allow them to quantify the stormwater benefits of this “green infrastructure” in a way that works seamlessly with existing models and methods. This fact sheet summarizes methods and tools to account for the ability of green infrastructure to reduce runoff and remove pollutants. It is organized into two categories:
- Methods for incorporating green infrastructure into runoff models
- Models and calculators for estimating the functions, benefits, and economics of green infrastructure
This Urban Watershed Forestry Manual on urban tree planting is a comprehensive guide for community planners and local governments on planting trees to improve water quality within a watershed. Information contained within this guide includes methods for increasing forest cover in a watershed for urban forestry managers, conserving and planting trees at development sites for developers and planners, and an urban tree planting guide for work crews and volunteers.
Pages contains detailed guidelines on creating tree boxes and trenches in Lancaster.
This factsheet describes tree trenches and includes photos and graphics. Other useful information includes benefits and limitations of use, maintenance tasks, and costs.