Essays about: "stand density"

Showing result 21 - 25 of 92 essays containing the words stand density.

  1. 21. Appropriate experimental design and pre-commercial thinning regime in Norway spruce stands on former agriculture lands in Latvia

    University essay from SLU/Southern Swedish Forest Research Centre

    Author : Aksels Edgars Loks; [2020]
    Keywords : management regime; heureka; randomized complete block design; density; economical rotation age; land expectation value;

    Abstract : Recent decades Latvian land usage has change and lot of unused agricultural lands has been reforested. These areas show difference by increased growth from typical forest land, because of this trait stands need different silvicultural treatments, implementation time and intensity. READ MORE

  3. 22. Effects of “classical” vs. “dynamic” silviculture of sessile oak-dominated stands in terms of height, diameter increments and natural mortality

    University essay from SLU/Southern Swedish Forest Research Centre

    Author : Alexandru-Mihai Goia; [2020]
    Keywords : sessile oak; cleaning-respacing; thinning; stand silviculture; crop tree silviculture; mortality; growth; Romania;

    Abstract : Traditional oak silviculture in Romania is associated with high labor costs and long rotation cycles which are imposed by current norms and regulations. A small-scale R&D project, consisting of a block with four plots of 200 m2, was established in 2001 in a 15-year old sessile oak-dominated stand. READ MORE

  4. 23. Pine production comparison : production potential of Loblolly pine (Pinus taeda) and Slash pine (Pinus elliottii) in the southeastern USA in relation to initial density and forest management

    University essay from SLU/Dept. of Forest Resource Management

    Author : Åsa Ramberg; [2019]
    Keywords : Loblolly pine; Slash pine; Scots pine; management intensity; planting density;

    Abstract : The southeastern (SE) United States (US) produces more industrial timber than any other region in the world. Pine plantations in the southern US have increased from 1.8 million acres (728,400 ha) in the beginning of the 1950’s to 32 million acres (13 million ha) in the beginning of the 21st century, and cover 17 % of the forest land. READ MORE

  5. 24. Modelling of stand basal area from leaf and plant area indices in boreal forest systems of Sweden

    University essay from SLU/Southern Swedish Forest Research Centre

    Author : Alex Appiah Mensah; [2018]
    Keywords : leaf plant area index; plant area index; Norway spruce; Scots pine; mixed forest; basal area; national forest inventory; Sweden;

    Abstract : Leaf or plant area index (LAI/PAI) is a useful biophysical indicator to characterize the interrelationships between forests and the atmosphere and offers greater potential to estimate productivity of forested landscapes. Recently, hemispherical photography has been used in a pilot study implemented in the Swedish National Forest Inventory (NFI) to estimate LAI. READ MORE

  6. 25. Brandhårdhetens påverkan på knäckesjukans omfattning på brandfältet i Sala

    University essay from SLU/Dept. of Forest Ecology and Management

    Author : Erik Sundström; [2018]
    Keywords : brandhårdhet; knäckesjuka; asp; Salabrännan; viltbete; fire severity; Pine twisting rust; aspen; the Sala fire; ungulate browsing;

    Abstract : Knäckesjuka (Melampsora pinitorqua) är en skoglig skadegörare som orsakar skador på ung tall (Pinus sylvestris). Svampen värdeväxlar mellan asp (Populus tremula) och tall för att fullborda sin livscykel. Tidigare studier visar en tydlig korrelation mellan hård brandhårdhet och kraftig lövetablering efter brand. READ MORE