Health condition of palm trees of Mexico City, with an emphasis on “crowns”

The government of Mexico City carried out the introduction palm trees in 50s to increase visual appearance main avenues. As a result these exotic species, phytosanitary problems appeared. Currently there is scarce information on how evaluate health majestic monocots, this sense, it necessary implement assessment scales determine condition most frequently found species advance their care and management. present study had following objectives: 1) To current state by means scale evaluation crown; 2) know diversity structural characteristics 3) influence composite variables ecosystem services such as amount shade provided. Health were evaluated two times (dry rainy seasons 2022) 35 transects 200 m length. An imaginary circle divided into twelfths was overlapped tree “crowns”, through it, absolute variables, Live Crown Ratio (LCR) Quality (CQ) evaluated. Composite also calculated. 12/12 adapted useful. Four categories obtained for crown ratio (LCR): 7.62% critical condition, 7.80% intermediate 80.36% normal 4.20% excellent condition. Meanwhile, quality (CQ), percentages 13.50%, 20.00%, 56.96% 0.43%, respectively. total height “crown” diameter showed positive correlation with volume variables. shadow area projected an important service increased improved. This first City.