Pinus Nigra (Schwarzkiefer)
The first time I collected a sample of Austrian black pine wood (Pinus Nigra) was a waste piece of sawn tree that had been cut down and remained left in the forest bed during our family walks on the edge of a pine forest in Neunkirchen, a district in Lower Austria. It was about year 2018 with a hope that I could make a stamp of the cut section out of it with ink, but I could not.
But in September 2023, just last week end, I finally made it to pictures the Austrian black pine trees which the trunk are gone brown.
I have seen this phenomenon in several plots of forest here, around Neunkirchen or Wiener Neustadt district, and other place in Lower Austria. If there are some of the pines getting brown on their trunk, then it is happened to the whole populations of the pine trees in the same plot. But where there are no brown trunk, all the other population are just health in the same plot. Starting from the height of 2 or 2,5 meters the trunks are become brown and the barks are peeled and left with crusts and cracks.
Apparently this happened because the black pine species can not adapt or resist dry and warming temperature from the climate changes that causing fungus to penetrate.
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