Tree Recommendations

BENEFITS OF AN URBAN FOREST

Improving the urban tree canopy is essential for creating healthier and more sustainable cities. As urban areas continue to expand, the need for green spaces and tree cover becomes increasingly critical. Urban trees offer a wide array of benefits that positively impact both the environment and the well-being of residents. By enhancing the urban tree canopy, we can:

• Reduce air pollution

• Mitigate the urban heat island effect

• Provide shade and cooling

• Enhance biodiversity

• Improve water management and reduce runoff

Recommended plants for South Salt Lake’s urban forest should primarily consist of native, non-invasive species that are well-adapted to the local dry climate and the wet micro-climates along the river corridors. Suitable options (recommended below) offer resilience and ecological compatibility, contributing to the sustainability and biodiversity of the urban environment.

TREE RECOMMENDATIONS

Urban green spaces reduce pollution, provide shade, and promote health. Trees improve air and noise quality in residential areas, fostering community pride. Street trees combat heat and encourage active transport, creating sustainable, pedestrian-friendly environments.

Determining optimal tree planting locations is crucial to maximize both ecological and societal benefits. It's equally important to select tree species well-suited to these locations to ensure their successful establishment and optimal benefits for urban infrastructure and residents. Below is a curated list of tree species identified through our research, tailored to each specific study topic for enhanced effectiveness and benefits.

We strongly recommend to NOT plant the following:

Green Ash (Fraxinus sp.) —Emerald Ash Borer
Fir (Abies sp.)—Balsam Wooly Adelgid
Tamarisk / Salt Cedar (Tamarix sp.)—Invasive
Russian Olive (Elaeagnus angustifolia)—Invasive
Crab Apple (Malus floribunda)—Overplanted

Resources for Tree Selection: Characteristics and Suitability

PLANTING FOR DIFFERENT TYPOLOGIES

Planting patterns are crucial for maximizing urban forest benefits, varying by location within the city. We've designed planting patterns tailored to four common typologies found in SSL. Below are examples for each type of location.

MIYAWAKI PLANTING METHOD

The Miyawaki method is an approach to rapidly restoring forests by planting a diverse mix of native tree species in a densely packed manner. It aims to mimic natural forest ecosystems and promote rapid growth and biodiversity in urban and degraded areas. It offers a promising approach to greening urban spaces, addressing environmental concerns, and enhancing biodiversity. Here’s how it can be practically applied in the city of South Salt Lake:

SCALE OF IMPLEMENTATION:

The Miyawaki Method is suitable at various scales, ranging from small vacant lots to areas of larger urban parks. Most sizes have been ~400 square feet.

TREE SPECIES SELECTION:

Native tree species are carefully selected for their adaptability to the local climate, soil type, and hydrological conditions, ensuring optimal growth and ecosystem integration.

PROCEDURAL STEPS:

1) Site preparation, 2) Soil enrichment, 3) Selection of native species, 4) Dense multilayered planting, and 5) Irrigation and weeding for two years (then it becomes self-sustaining).

CHALLENGES + LIMITATIONS:

Applying the Miyawaki Method in SSL may be challenging due to limited space and poor soil quality. Finding adequate numbers of native species may also pose challenges.

SOURCE: https://www.sugiproject.com/blog/why-we-use-the-miyawaki-method

THE MIYAWAKI METHOD IN SSLC

Using native species is crucial for creating a sustainable urban forest that supports biodiversity. While some native plants are already in place in SSL, many non-native and invasive species are present as well. The charts below outline the recommended distribution of native plants for both dry and wet areas in SSL’s urban forest. These numbers are approximate estimates for a standard 400 square foot area and should be adjusted based on site-specific conditions. The cross-section to the below that depicts how these species would look together.

Recommended Plants for a Wet Micro-Climate

Recommended Plants for the Dry Climate

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