Rather than evaluate only planting costs, we estimate the cost of producing a successful seedling (i.e., one that is likely to attain a dominant or codominant crown position by stand age 11). This provides a more realistic cost estimate, since the objective is to obtain a given number of competitively successful trees. Thus, the cost of trees that are likely to die or not attain a competitively...

Oak Regeneration Dynamics Successful regeneration of oak on intermediate and high-quality sites (upland oak site index > 65 to 70 feet) is limited due to the lack of the vigorous advance regeneration and/or saplings/pole-sized trees that are capable of sprouting. Vigorous advance regeneration and/or stump sprouters are required at the time of regeneration on intermediate and highquality sites, ...

The paper deals with recruitment patterns in larch forests of Mongolia following anthropogenic impacts (felling, fires), and describes successional trends in highland forest communities. It is established that mass seed recruitment of Larix sibirica LEdEb. took place during anomalous combinations of hydrothermal conditions supposedly occurring at periods of about 100 years. During the last deca...

Abstract The purpose of the research was to assess species composition and biodiversity indices for xylophagous beetles collected by window traps in parts Gomilshanski lisy National Nature Park with different management regimes anthropogenic load. Four were placed each five groups sample plots: clear felling, selective stationary recreation, regulated recreation protected zone. data analysed us...

In the last few decades, an increasing number and intensity of bark beetle outbreaks have plagued forests Europe North America. Bark management is directly related to forest owner characteristics, although this relationship not well understood. The purpose study was investigate influence characteristics on amount timing sanitary felling under different disturbance regimes quantities Norway spru...

Invasive plants are one of the greatest threats to endangered insect species and a major threat to Lepidoptera in eastern North America. We investigated the effects of the invasive shrub Chinese privet (Ligustrum sinense) and two methods (mulching or hand-felling) of removing it from riparian forests on butterfly communities and compared them to untreated, heavily invaded control plots and to ‘...

This paper describes an ongoing design and development project of an autonomous pathtracking forest machine. The work is part of a long-term vision in the forest industry of developing an unmanned shuttle that transports timber from the felling area to the main roads for further transportation. The developed prototype system has two modes of operation: Path Learning, in which the human operator...

An intense debate exists on the effects of post-fire salvage logging on plant community regeneration, but scant data are available derived from experimental studies. We analyzed the effects of salvage logging on plant community regeneration in terms of species richness, diversity, cover, and composition by experimentally managing a burnt forest on a Mediterranean mountain (Sierra Nevada, S Spai...