Montako vuosirengasta kuvissa näkyy?

Jos alla olevia kuvia klikkaa hiirellä niin se saa ruudulle suurempina. Silloin voi itsekin laskea vuosirenkaat. Näin hyvää puuta en ole nähnyt missään moneen vuoteen. Noin 9 cm leveässä leikkauksessa (palikka otettu loveamalla isommasta pattingista) näkyy noin 120 vuosirengasta.

120 vuosirengasta noin 9 cm leveässä leikkauksessa (vinottaisleikkaus noin 10 cm).

120 vuosirengasta noin 9 cm leveässä leikkauksessa (vinottaisleikkaus noin 10 cm).

126 vuosirengasta 9 cm leveässä leikkauksessa (vinottaishalkaisija on noin 10 cm).

126 vuosirengasta 9 cm leveässä leikkauksessa (vinottaishalkaisija on noin 10 cm).

Näistä kyseisistä puista tuli meille 2-kerroksen pystykoolauspuita, mutta olisi tällaisesta puusta voisi rakentaa ihan vaikka ikkunan pokat. Nythän puuikkunoiden valmistus on lopettu jo ajat sitten ja osittain myöskin siitä syystä, että riittävästi riittävän hyvää raaka-ainetta ei ollut enää saatavilla. Eli nykyisin ikkunat ovat enimmäkseen puu-alumiini runkoisia.

Mietin mistä mahtaa nämä puut olla peräisin?

Kaupan eli tarkemmin sanottuna K-raudan puita nämä ovat. Mutta tuskin Etelä-Suomessa missään tällaisia kasvaa? Ehkä nämä on sitten Lapin puita tai tuontitavaraa Venäjältä, jossa hoitamaton valtion metsä kasvaa paljon hitaammin, kuin lannoitetut metsät Suomessa.

Omissa metsissä Virossa vuosikasvain voi olla parhaimmillaan peukalon levyinen, ja isossa kuusitukissa vuosirenkaita on siinä tapauksessa vain noin 50 kpl. Sellainen tukkipuu on tosin aika höhhöä, mutta kelpaa sekin vaikka vuorilaudaksi, tontin raja-aitaan tai vaikka seinäpaneeliksi.

Jos taas puulle tulee paksuutta alle milli vuodessa – niin kuin noissa kuvissa näkyvissä puissa – niin aika monta sukupolvea menee, ennen kuin samalta metsäpalstalta voidaan hakata seuraavan kerran uudet tukit.

170 vastausta artikkeliin ”Montako vuosirengasta kuvissa näkyy?

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