Publications by authors named "Daniela Postelnicu"
Article Synopsis
- Ozone (O3), nitrogen dioxide (NO2), and sulfur dioxide (SO2) levels in the Retezat Mountains were low during the summer of 2000-2002, posing no toxicity threat to forest trees, while ammonia (NH3) levels increased in 2001 and 2002, hinting at higher nitrogen deposition.
- Over 90% of rain was acidic, with pH levels below 5.5, leading to increased soil acidity; while the crown condition of Norway spruce and European beech was generally good, defoliation rose from 9.1% in 2000 to 16.1% in 2002.
- Drought and frequent acidic rainfall during this time likely contributed
Within the framework of the project "Effects of forest health on biodiversity with emphasis on air pollution in the Carpathian Mountains" 26 permanent study sites were established in the vicinity of the ozone monitoring sites. The study sites were located on the NW-SE transect through the Western (12 sites), Eastern (11 sites) and Southern (3 sites) Carpathians in forest ecosystems typical of each area. Some of the forest monitoring sites were located in national parks, biosphere reserves and areas of protected landscape.
View Article and Find Full Text PDFAn international cooperative project on distribution of ozone in the Carpathian Mountains, Central Europe was conducted from 1997 to 1999. Results of that project indicated that in large parts of the Carpathian Mountains, concentrations of ozone were elevated and potentially phytotoxic to forest vegetation. That study led to the establishment of new long-term studies on ecological changes in forests and other ecosystems caused by air pollution in the Retezat Mountains, Southern Carpathians, Romania and in the Tatra Mountains, Western Carpathians on the Polish-Slovak border.
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