Basal Area
Figure 4 . i-Tree Landscape Springfield Basal Area Map
Figure 4 presents the basal area of trees in Springfield , visually depicting the density and coverage of trees across the city . Basal area , which represents the cross-sectional area of tree trunks at breast height , serves as an essential indicator of tree density and overall forest structure . The color gradient on the map illustrates variations in basal area , with darker shades indicating areas of higher tree density . The distribution of basal area highlights the presence of green spaces , urban forests , and tree-rich neighborhoods in Springfield , which contribute to ecological health by providing wildlife habitat , enhancing biodiversity , and improving air and water quality . These areas offer numerous benefits , including mitigating the urban heat island effect , providing shade and cooling , and promoting the physical and mental well-being of residents . Conversely , regions with lower basal areas present opportunities for targeted tree planting and restoration efforts to increase tree density , promote environmental justice , and ensure equitable access to the benefits of trees . The visualization emphasizes the importance of trees in Springfield ' s urban landscape and showcases the potential for further enhancing the city ' s environmental sustainability and resilience .
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