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Correlation between dry density and shrinkage in eight tropical hardwood species
ID Ojo, Adedeji Robert (Avtor), ID Ogutuga, Samson Oluwaseun (Avtor), ID Aguda, Lawrence Olanipekun (Avtor)

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Izvleček
Eight tropical hardwood species were assessed for their density and radial, tangential and volumetric shrinkage, after which the relation between the density and different shrinkages was checked through correlation and regression. The results showed that the highest mean density was observed in Milicia excelsa with 900.63±50.13 kg/m³, followed by Afzelia africana, Nesogordonia kabingaensis and Nauclea diderichii with 831.25±41.67 kg/m³, 808.75±20.88 kg/m³ and 801.88±46.40 kg/m³, respectively. The mean density for Cassia simea was 781.88±27.71 kg/m³, Mansonia altissima 593.13±65.98 kg/m³, and Sterculia tragacantha 481.25±111.73 kg/m³, while the least density was observed in Treculia africana with 463.75±67.88 kg/m³. The highest volumetric shrinkage was observed in Nesogordonia kabingaensis with 14.71±2.28%, and the least in Cassia simea with 5.11±2.65%. It is concluded that there exists positive but weak correlation between density and the shrinkages in the eight tropical hardwood species.

Jezik:Angleški jezik
Ključne besede:wood, tropical hardwoods, density, shrinkage, Milicia excelsa, Afzelia africana, Nesogordonia kabingaensis, Nauclea diderichii, Cassia simea, Mansonia altissima
Vrsta gradiva:Članek v reviji
Tipologija:1.01 - Izvirni znanstveni članek
Organizacija:BF - Biotehniška fakulteta
Status publikacije:Objavljeno
Različica publikacije:Objavljena publikacija
Datum objave:01.01.2022
Leto izida:2022
Št. strani:Str. 31-43
Številčenje:Letn. 71, št. 2
PID:20.500.12556/RUL-168367 Povezava se odpre v novem oknu
UDK:630*812:176.1
ISSN pri članku:0024-1067
DOI:10.26614/les-wood.2022.v71n02a02 Povezava se odpre v novem oknu
COBISS.SI-ID:138060803 Povezava se odpre v novem oknu
Datum objave v RUL:10.04.2025
Število ogledov:472
Število prenosov:162
Metapodatki:XML DC-XML DC-RDF
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Gradivo je del revije

Naslov:Les
Skrajšan naslov:Les
Založnik:Zveza društev inženirjev in tehnikov gozdarstva in lesarstva Slovenije, Zveza društev inženirjev in tehnikov gozdarstva in lesarstva Slovenije, Biotehniška fakulteta, Oddelek za lesarstvo, Založba Univerze, Biotehniška fakulteta, Oddelek za lesarstvo, Založba Univerze
ISSN:0024-1067
COBISS.SI-ID:13940224 Povezava se odpre v novem oknu

Licence

Licenca:CC BY-NC 4.0, Creative Commons Priznanje avtorstva-Nekomercialno 4.0 Mednarodna
Povezava:http://creativecommons.org/licenses/by-nc/4.0/deed.sl
Opis:Licenca Creative Commons, ki prepoveduje komercialno uporabo, vendar uporabniki ne rabijo upravljati materialnih avtorskih pravic na izpeljanih delih z enako licenco.

Sekundarni jezik

Jezik:Slovenski jezik
Naslov:Zveza med gostoto in krčenjem lesa osmih tropskih vrst
Izvleček:
V raziskavi ocenjujemo zvezo med gostoto in krčenjem za osem tropskih lesnih vrst. Raziskali smo gostoto ter radialno, tangencialno in prostorninsko krčenje osmih tropskih lesnih vrst. Rezultati so pokazali, da je imela največjo povprečno gostoto vrsta Milicia excelsa z 900,63±50,13 kg/m³, sledijo Afzelia africana, Nesogordonia kabingaensis in Nauclea diderichii z 831,25±41,67 kg/m³, 808,75±20,88 kg/m³ in 801,88±46,40 kg /m³. Povprečna gostota za vrste Cassia simea je bila 781,88±27,71 kg/m³, Mansonia altissima 593,13±65,98 kg/m³, Sterculia tragacantha 481,25±111,73 kg/m³, medtem ko je bila najmanjša gostota opažena pri vrsti Treculia africana s 463,75±67,88 kg/m³. Največje prostorninsko krčenje je bilo zaznano pri vrsti Nesogordonia kabingaensis (14,71 ± 2,28 %), najmanjše pa pri vrsti Cassia simea (5,11 ± 2,65 %). Ugotavljamo, da obstaja šibka pozitivna korelacija med gostoto in krčenjem pri osmih tropskih vrstah listavcev. Eight tropical hardwood species were assessed for their density and radial, tangential and volumetric shrinkage, after which the relation between the density and different shrinkages was checked through correlation and regression. The results showed that the highest mean density was observed in Milicia excelsa with 900.63±50.13 kg/m³, followed by Afzelia africana, Nesogordonia kabingaensis and Nauclea diderichii with 831.25±41.67 kg/m³, 808.75±20.88 kg/m³ and 801.88±46.40 kg/m³, respectively. The mean density for Cassia simea was 781.88±27.71 kg/m³, Mansonia altissima 593.13±65.98 kg/m³, and Sterculia tragacantha 481.25±111.73 kg/m³, while the least density was observed in Treculia africana with 463.75±67.88 kg/m³. The highest volumetric shrinkage was observed in Nesogordonia kabingaensis with 14.71±2.28%, and the least in Cassia simea with 5.11±2.65%. It is concluded that there exists positive but weak correlation between density and the shrinkages in the eight tropical hardwood species.

Ključne besede:les, tropski listavci, gostota, krčenje

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