Management of Scots pine ( L.) in Norway requires a forest growth and yield model suitable for describing stand dynamics even-aged forests under contemporary climatic conditions with without the effects silvicultural thinning. A system equations forming such stand-level fitted to long-term experimental data is presented here. The consists component (i) dominant height, (ii) stem density (...

This paper focuses on individual-tree and whole-stand growth models for uneven-aged mixed-species stands in Lithuania. All the were derived using a single trivariate diffusion process defined by mixed-effect parameters stochastic differential equation describing tree diameter, potentially available area, height. The of newly developed transition probability density function estimated an approxi...

Abstract Background The carbon pools of forest soils play a vital role in global sequestration and emissions. Forest management can regulate the output soil to certain extent; however, kinetics effects density on require further investigation. Methods We established sample plots with stand gradients three different aged Larix principis-rupprechtii plantations quantified respiration, organic (SO...

Cold rolling process is a complicated process which can be optimized by changing in variables and settings. This paper presents a set-up optimization system developed to calculate reductions and inter-stand tensions for each stand of a five stand tandem cold mill. The main objective in this optimization is minimization of power consumption. First, by using the analytical method, the equations ...

Dena Biosphere Reserve located in Iran and is a 550 Biosphere Reserve in the worlds. This research was investigated in the two protected and non-protected areas, in a Dena Biosphere Reserve, Kohkeloye va Boyrahmad province, and central zagros forest, southwest of Iran. Inventory methods designed by systemetic-randomaiz method by use the rectangular plots that were 15×30 meters in the 100×100 m ...

Dena Biosphere Reserve located in Iran and is a 550 Biosphere Reserve in the worlds. This research was investigated in the two protected and non-protected areas, in a Dena Biosphere Reserve, Kohkeloye va Boyrahmad province, and central zagros forest, southwest of Iran. Inventory methods designed by systemetic-randomaiz method by use the rectangular plots that were 15×30 meters in the 100×100 m ...

Damage to residual stand is unavoidable and it is one of the main important issues in the forest harvesting. Trees damage may occur in felling and skidding work phase or during skid trail construction. In any case, damage can be very serious to residual stand. Detailed study is necessary to find out the amount and severity of damage to trees; therefore district 14 of Kilesara in Guilan Province...

Enhancement of forest growth through silvicultural modification of stand density is one strategy for increasing carbon (C) sequestration. Using the Fire and Fuels Extension of the Forest Vegetation Simulator, the effects of even-aged, uneven-aged and no-action management scenarios on C sequestration in a southern Appalachian red spruce-Fraser fir forest were modeled. We explicitly considered C ...