Acid rain-damaged trees: Karkonoski Nat.Pk,Poland
Numéro d’image : 11749886
| Acid rain: the remains of spruce trees devastated by acid rain in the Karkonoski National Park,south-west Poland. Located on the border with Czechoslovakia,the trees are subject to acid precipitation wind-blown from that country. In 1989 a highly-acidic pH of 1.7 was recorded on one occasion; pH 7 indicates a neutral value. Trees in the 1000-1250 metres altitude range appear especially vulnerable. Other factors which compound the damage include insects,drought and high winds. Trees are felled in an attempt to limit the spread of insect damage. Of the 3,800 hectares that the Karkonoski Park occupies,150 hectares have been severely affected | |
| Licence : | Droits gérés |
| Crédit: | Science Photo Library / Fraser, Simon |
| Taille de l’image : | 3840 px × 5151 px |
| Model Release : | Non requis |
| Property Release : | Non requis |
| Restrictions : | - |
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