New Research on The
Science and Practice of
Managing Forests in Cities
New research results and presenta-
tions on The Science and Practice of
Managing Forests in Cities. This includes
a webinar with Sarah Charlop-Powers
and Dr. Clara Pregitzer of the Natural
Areas Conservancy introducing the chal-
lenges and opportunities of managing
forests in cities, including 25 case studies
from 12 cities across the U.S. In addi-
tion, Forest Service Research Ecologist
Dr. Rich Hallett presented a silvicultural
framework for assessment and manage-
ment of forests in cities, adapted from
rural forest management practice.
New U.S. Forest
Service Resources
New Issue of the Cross
Pollinator on Pathogens
in Restoration Projects
New issue of The Cross-Pollinator on the
theme of A Threat to Ecological Investments:
Plant Pathogens in Landscape Restoration
Projects. To repair ecological damage caused
by construction, landscape managers typically
apply restoration techniques—but what if
these activities further damage the ecology?
This is an issue that USDA Forest Service sci-
entists and their partners have worked to
address since 2014, when they discovered that
a water-mold pathogen called Phytophthora
had been inadvertently introduced to resto-
ration sites in the San Francisco Bay Area.
New report: For Tree
Equity and Climate
Change, How Many Urban
Trees Do We Need?
The magic number to plant is 31.4 million,
according to a new American Forests study,
done with Dr. David Nowak of the U.S.
Forest Service. What would that look like?
On average, trees would cover 43.3 percent
of U.S. urban areas, which is a relative 10
percent increase from where we are today.
20 CityTREES
