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Atmospheric deposition and ozone levels in Mediterranean forest ecosystem of Croatia
| Content Provider | Semantic Scholar |
|---|---|
| Author | Jakovljević, Tamara Potočić, Nenad Seletković, Ivan Butorac, Lukrecija Jelić, Goran Zgrablić, Željko Indir, Krunoslav |
| Copyright Year | 2018 |
| Abstract | Mediterranean forest ecosystems in Croatia are highly significant and cover almost half of Croatian total forest area. They provide multiple goods and services largely related to their environmental and social functions. These forests are ecologically very sensitive, because of its geographic position, complex orography, specific meteorological conditions and number of pollution sources. Among all bioclimatic regions, Mediterranean region appears to be the most vulnerable to global change. The vulnerability to climate change is related to the trend of increasing temperature, degradation of water resource and increased of water demand. The chemistry of atmospheric deposition and its transformation in contact with vegetation are of great importance in understanding its effects on forests. It has an impact on forest ecosystem through eutrophication by nitrogen and soil acidification, altering soil properties and processes. Soil acidification by S and N deposition including the loss of base cations (i.e. calcium, magnesium and potassium) from the soil causing deficiency of these nutrients, and inhibiting base cation uptake, and a decrease in pH that may increase the mobility of heavy metals. In this stage, a decrease in forest condition and growth is assumed to occur. Changes in the soil chemistry may lead to imbalances in the nutrient supply and subsequently to unbalanced nutrition of the trees. Nutrient imbalance will affect canopy photosynthesis and in turn decrease forest vitality. The chemical composition of the foliage of forest trees is an important indicator for tree nutrition, providing information on deficiency or excess of nutrients. Ozone as accompanying agent of climate changes is also among key factors resulting in spatial and temporal changes in tree crown condition and productivity. Furthermore, it is the region at the highest ozone risk as ozone formation occurs at high temperatures in presence of solar radiation, which is elevated in the Mediterranean–type ecosystems. Ozone as accompanying agent of climate changes is also among key factors resulting in spatial and temporal changes in tree crown condition and productivity. Therefore, the research of atmospheric deposition and ozone levels and visual symptoms were necessary. |
| Starting Page | 158 |
| Ending Page | 158 |
| Page Count | 1 |
| File Format | PDF HTM / HTML |
| Alternate Webpage(s) | http://www.sumins.hr/wp-content/uploads/2019/03/Prilog_DepOMedFor_GREEN.pdf |
| Language | English |
| Access Restriction | Open |
| Content Type | Text |
| Resource Type | Article |
