Greenspace, Trees, and Ecosystems

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The strategies on the following pages guide our path to meeting our climate goals for the Greenspace, Tree Cover, and Ecosystem sectors. Each strategy is supported by a series of detailed actions to be explored and undertaken to carry out the vision and goals.

Currently, La Crosse has a 30% average tree canopy and 30% manicured lawn coverage. Conversely, the city has 11.9% of its land area occupied by impervious surfaces which contribute to the city being 1.8 degrees Fahrenheit hotter than surrounding areas. 

Increase community-wide tree cover from 30% to 32.5% by 2030 and 35% by 2040.
Increase pollinator supportiveness of lawns and grasslands in the community and achieve a 5% turf replacement with native grasses and wild- flowers by 2030.
Reduce heat island effect through community- wide “dark” impervious surface coverage from 10.4% to 8% by 2030 and 5% by 2040
Increase climate resilience of community’s parks and open spaces

Why are Greenspaces, Trees, and Ecosystems Important?

Trees and natural ground cover play a central role in supporting community physical and mental health, improving air and water quality, helping to reduce building energy use, reducing stormwater runoff, and supporting climate mitigation. Healthy tree and native grass coverage sequester carbon and help reduce the atmospheric GHG emissions that drive climate change. Trees are critical in filtering air and removing harmful pollutants such as carbon monoxide, particulate matter, and ground-level ozone.

Conversely, higher levels of impervious surfaces (pavement and buildings) within a community will increase the heat island effect on the community. Heat island refers to the phenomenon of higher atmospheric and surface temperatures occurring in developed areas than those in the surrounding rural areas due to human activities and infrastructure. Increased heat indices during summer months due to heat island effects raise human discomfort and health risk levels in developed areas, especially during heat waves. There is a direct relationship between the amount of impervious surface coverage of a community and the corresponding degree of heat island temperature experienced—meaning a conscious effort to increase greenspace and tree canopy coverage in areas of higher heat island impacts can lower those impacts. 

Turf Reduction Potential

90.5% of grass lands in La Crosse are manicured lawns— representing a great opportunity for turf reduction. Turf reduction can increase stormwater uptake, reduce potable water use, and increase soil carbon. The map shows the portion of ground cover that is grass by Census Tract. Areas with higher percentages of grass coverage may offer the greatest potential for turf re- placement with native grasses and wild flowers.

    Key Climate Considerations 

    • Climate impacts on existing parks, conservation areas, and other green spaces, and how that may be altered by changes in temperature and precipitation in coming decades.
    • Potential impacts of climate change on patterns of use around parks and recreational areas.

    Equity Considerations 

    • Lower-income neighborhoods and neighborhoods with higher proportions of people of color regularly have lower tree canopy coverage, and less of the environmental, economic, and quality-of-life benefits trees support than more affluent neighborhoods.
    • Frequently neighborhoods with higher vulnerable populations have the highest heat island impacts.