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New guidance for tracking long-term tree survival, growth, and health

Field monitoring of urban trees is essential to learn how urban forests change over time. Many arborists and urban forest managers worldwide seek to understand how their tree systems are faring in terms of growth, health, and mortality. The Urban Tree...

Resource
9/28/20
The Calm Before: Tree Adjustments to Wind & Ice Storm Loads

Trees grow with, and adjust to, large lateral and vertical loads caused by wind and gravity. Storms with strong winds and ice can push trees beyond their ability to reconfigure or fall back to reduce drag. Exceeding tree structural ice and wind load...

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7/27/20
Protecting trees from construction impacts

With increased intensification in cities throughout the world, urban trees are often at risk of becoming damaged by construction impacts, such as utility trenching or pavement / sidewalk repair. If the damage is severe and a tree loses a lot of its...

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7/27/20
Rx for Hot Cities: Urban Greening and Cooling to Reduce Heat-Related Mortality in Los Angeles and Beyond

Across the country, a number of cities are setting ambitious tree canopy goals to fight the trend of a decline in tree canopy. Among the many causes of canopy loss, development is a key driver, and is one that communities can significantly influence...

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7/24/20
Bartlett: Mulch Application Guidelines

Mulches provide many benefits for trees and shrubs. Properly applied mulch will moderate soil temperatures, reduce soil moisture loss, reduce soil compaction, provide nutrients, improve soil structure, foster beneficial microbial communities, and keep...

Resource
10/15/19
The Landscape Architect in the Nursery: Tagging Trees and Enforcing Specifications

Tree defects such as co-dominant leaders, girding roots and buried trunk flares, present at time of planting, cause failures and decline long after the warrantee period has expired.  Landscape architects may go to nurseries to tag trees; but often...

Resource
9/12/19
Reducing Tree (and Soil!) Damage during Construction

As the pace of urban development increases, urban green spaces, and urban trees in particular, come in direct conflict with bulldozers and backhoes. With careful early planning and an understanding of how tree damage occurs, strategies for tree...

Resource
12/18/18