نتایج جستجو برای: uneven aged stands

تعداد نتایج: 225767  

A. E. Bonyad R. Naghdi, S. Mohammadi Limaei, S. Namdari

The aim of this study was to determine the optimal cutting cycle in an uneven-aged beech forest in the North of Iran. First of all, a logistic growth model was determined for an uneven aged forest. Then, the stumpage price was predicted via an autoregressive model. The average stumpage price of beech was derived from actual timber, round wood, fire and pulpwood prices at road side minus the var...

2018
Philippe Nolet Daniel Kneeshaw Christian Messier Martin Béland

With an increasing pressure on forested landscapes, conservation areas may fail to maintain biodiversity if they are not supported by the surrounding managed forest matrix. Worldwide, forests are managed by one of two broad approaches-even- and uneven-aged silviculture. In recent decades, there has been rising public pressure against the systematic use of even-aged silviculture (especially clea...

2010
Thomas P. Adams

The Caledonian pinewoods are a habitat of crucial environmental and cultural importance, and the sole home of many rare species. However, they have seen steady decline in recent centuries, through the establishment of hunting estates and forestry plantations. A recent trend in management is the attempted transformation of existing plantations (dense communities with a regular spatial structure ...

2017
Gregory D. Peters Gregory Peters Anna Sala

Low elevation ponderosa pine (Pinus ponderosa Dougl. ex. Laws.) forests of the northern Rocky Mountains historically experienced frequent, low intensity fires that maintained open, uneven-aged stands. A century of fire suppression has led to denser ponderosa pine forests with higher competition for resources, higher tree stress, and greater risk of insect attack and stand destroying fire. Activ...

Journal: :Journal of forest science 2021

Wood-inhabiting macromycete (WIM) communities in the ecosystem of uneven-aged spruce stands growing on former agricultural land were investigated relation to supply wood substrate, degree rot, and selected climatic ecological conditions. Altogether, 58 WIM species detected at research plots during 2016–2018. The abundance fruiting bodies richness increased from youngest oldest forest stands. hi...

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