Table 1.
Summary statistics.
Fig 1.
Variation in Urban tree diversity in California.
Notes: Data for 857 zip codes in Heart Disease sample California from consortium of private tree maintenance companies.
Fig 2.
Histograms of Shannon index and trees per hundred thousand individuals.
Notes: Data for 857 zip codes in Heart Disease sample California from consortium of private tree maintenance companies.
Fig 3.
Urban forest diversity and mortality.
Notes: Data for 857 California zip codes for Heart Disease and 241 zip codes for Stroke for 2010–2018 from California Department of Public Health. Shannon index calculated from data from consortium of private tree maintenance companies.
Table 2.
Urban forest diversity and mortality.
Table 3.
Sensitivity of estimates.
Fig 4.
Change in Shannon index by number of genera targeted for simulated LA planting.
Figure Notes: Data for 61 zip codes that are at least partly within the boundaries of the city of Los Angeles, California, and are in the bottom 50th percentile in terms of total trees. The simulation evenly splits a total of 50 newly planted trees per zip code under five scenarios, each corresponding to a box plot: A single genus (the most common in LA, “top” and the fifth most common), as well as evenly splitting plantings across two, five, and ten genera. For example, in the top five genera scenario, each genus would increase the total trees by 50/5 = 10 trees. The Shannon Diversity Index is recalculated for each scenario and boxplots show the distribution in the change in the Shannon across 61 zip codes.
Table 4.
Avoided mortality benefits for Los Angeles tree planting initiative.