نتایج جستجو برای: silviculture
تعداد نتایج: 667 فیلتر نتایج به سال:
Models of silviculture are used for the selection and scheduling silvicultural practices from installation to end production cycle. Most published models even aged stands. Those mixed uneven stands scarce. The goal this study was development Portuguese species; with examples Pinus pinea , Quercus suber rotundifolia pinaster Castanea sativa . Five stand structures were considered (pure aged, tem...
Juvenile wood is associated with shrinkage and a high probability of warping checks in end products, reducing their value even causing them to be rejected for structural purposes. This work studies the variations yearly caused when passes from green dry state. The methodology proposed based on juvenile (JW) location using annual variations. Pinus nigra Arn. grown different silviculture techniqu...
The structural and aesthetic value of wood is typically sacrificed in an attempt to meet demand. This paper addresses the financial and quality aspects of silvicultural choices as it relates to wood veneers. Five trees each were harvested from an unevenaged stand and from the following evenaged stands: intensive plantation, conventional plantation, and natural regeneration. The 48-year old lobl...
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