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Bialoblocie, Greater Poland. Longitudinal tracks on the pines. Lightning scratches – what is this phenomenon? State Forests translate

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Longitudinal traces on pines appeared in the Białobłocie forestry in the Wielkopolskie Voivodship. As foresters explain, the appearance of cracks is the result of the first spring storms. The trees were very lucky – as a result of a lightning strike, it is not uncommon for trunks to “explode”.

At the end of March, they swept through the western part of Poland storms. There was also thunder over the Białobłocie forestry area in the Wielkopolskie Voivodeship, at the junction with the Pomeranian and Kuyavian-Pomeranian. There, after the storm, an unusual sight appeared to the forester’s eyes.

Lightning scratches. How they are made

As can be seen in the photos posted on social media, several pine trees had oblong, straight marks reaching from the crown of the tree down to the ground. In these places, the bark was completely removed from the trunk.

These damages are called “lightning scratches”, and as the name suggests, they arise as a result lightning strikes. Foresters explained that this is an unusual phenomenon, and it may result in a single tree fire. This time, due to the high humidity of the air, the trees survived – the wounds are not very deep, so they will probably heal over time.

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Foresters explain that as a result of a lightning strike, a tree trunk can split into many pieces. In extreme cases, the sudden evaporation of water causes the trunk to burst from the inside. The tree then “explodes”, scattering broken pieces of wood and bark all around. Species with thick, rough bark are most vulnerable to lightning damage: pines, oaks and poplars.

How to behave during a thunderstorm in the forestNational forests

Lipka Forest District/National Forests, Forest Encyclopaedia, tvnmeteo.pl

Main photo source: Mateusz Dolla/Lipka Forest District





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