Urban forest health diagnosis in critical areas by air pollution in the metropolitan area of Guadalajara, Jalisco

摘要

BACKGROUND. The present levels of air pollution in large cities are a problem that affects not only people, but also to vegetation. Species are more resistant than others to air pollutants, which do not always correspond with the native species. The genus Fraxinus is clearly identified as sensitive to ozone, especially some species such as F. americana, without the use of any studies in the species F. uhdei yet, which is native to Jalisco and one of the most used in urban forestry plans. OBJECTIVE: To conduct an assessment of the health status of the species Fraxinus uhdei in Guadalajara Metropolitan Area in relation to levels of air pollution. METHODS: Inspection leaf of F. uhdei individuals in four parks near stations monitoring air quality with 30 individuals each, compaction of soil, rainfall, temperature, passive monitors ozone, sulfur dioxide, oxides of nitrogen. Correlation with ozone levels information, PM10, SO2, NOx from Air Quality Monitoring Network of the State of Jalisco. Comparison with control area. RESULTS: There was chlorosis, necrosis, stained abnormally, fungi, mistletoe at individuals in every 4 of the study parks, unlike the control zone. CONCLUSION: High levels of ozone, PM10, SO2, NOx affect the health of the species F. uhdei trees in the study areas.