This study applied the Taipei City Tree Safety Assessment Form to comprehensively evaluate
health and public safety risks of 150 trees representing 10 species on the campus of National
Ilan University. The assessment framework covered four key aspects–crown, trunk, roots, and
surrounding environment–enabling the identification of species-specific health conditions and
risk characteristics. The results revealed significant interspecific differences, with four trees
(approximately 7%) classified as Grade A–(most severe) requiring immediate attention. About 31%
of the sampled trees exhibited poor growth conditions, with species-specific proportions ranging
from 7% to 68%. Based on injury severity assessment (excluding anthropogenic damage), the
species exhibiting the poorest health conditions were Sapindus mukorossii Gaertn., Cassia fistula
L., and Ficus microcarpa L.f. The most frequent deficiencies were associated with trunk structural
defects (such as decay and cavities), crown decline, and restricted root environments, reflecting the
considerable influence of environmental and structural factors on tree health and safety. The study
further discovered that adverse planting environments and inadequate pit design exacerbated tree
risks. The findings of this study emphasize the necessity of prioritizing the management of highrisk
trees and demonstrate the practical utility of the assessment form for campus tree inspections,
while highlighting the importance of continued refinement informed by field experience and
empirical data to enhance its long-term applicability.