Sankt-Peterburg, St. Petersburg, Russian Federation
Sankt-Peterburg, St. Petersburg, Russian Federation
Sankt-Peterburg, St. Petersburg, Russian Federation
Cel'yu provedennoy raboty bylo vyyavlenie zakonomernostey formirovanie anatomicheskogo stroeniya, a takzhe plotnosti drevesiny sosny i eli pod effektom razrezhivaniya sostava nasazhdeniya. Ob'ektami issledovaniya yavlyayutsya spelye chistye i smeshannye drevostoi kislichno-chernichnogo tipa lesa s razlichnymi dolyami sosny i eli v sostave, raspolozhennye v Leningradskoy oblasti. V nasazhdeniyah byli zalozheny postoyannye probnye ploschadi s razrezhivaniyam razlichnoy intensivnosti, s vydeleniem kontrol'nyh sekciy bez rubok. Na opytnyh ob'ektah byl proizveden otbor obrazcov drevesiny so vseh predstavlennyh stupeney tolschiny nasazhdeniya, putem vysverlivaniya radial'nyh kernov buravom Presslera na vysote 1,3m ot kornevoy sheyki stvola. V kachestve pokazatelya, harakterizuyuschego massu edinicy ob'ema drevesiny, ispol'zovalas' bazisnaya plotnost', kotoraya izmeryalas' sposobom maksimal'noy vlazhnosti po metodu prof. O. I. Poluboyarinova. Izmerennaya bazisnaya plotnost' drevesiny obrazca, s pomosch'yu konversionnyh uravneniy, pereschityvalas' na srednyuyu dlya stvola dereva. Issledovanie makrostroeniya drevesiny otobrannyh obrazcov provodilis' s primeneniem skanera vysokogo razresheniya, putem izmereniy na ocifrovannyh izobrazheniyah kernov v programmnom GIS-pakete. V dal'neyshem byla provedena statisticheskaya obrabotka poluchennyh kachestvennyh i kolichestvennyh dannyh s ispol'zovaniem obscheprinyatyh v ekologo-biologicheskih issledovaniyah drevesnyh fitocenozov metodov. Vyyavlena statisticheskaya dostovernost' poluchennyh dannyh v bol'shinstve sluchaev na 95% urovnem znachimosti. Otmechaetsya, chto intensivnye rubki ne privodyat k znachimomu snizheniyu plotnosti drevesiny eli i sosny k vozrastu rubki spelogo nasazhdeniya v kislichno-chernichnyh tipah lesa. Odnako v smeshannyh hvoynyh drevostoyah s uvelicheniem doli eli v sostave proishodit snizhenie plotnosti ee drevesiny. Ustanovleno, chto v razrezhennyh hvoynyh nasazhdeniyah plotnost' drevesiny u eli i sosny na dannom vozrastnom etape bol'she zavisit ot soderzhaniya pozdney ksilemy v godichnom priroste, chem ot shiriny godichnogo kol'ca
rubki uhoda, sostav nasazhdeniy, plotnost' drevesiny, rannyaya drevesina, pozdnyaya drevesina, shirina godichnogo prirosta
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