ШУМАРСКИ ПРЕГЛЕД

Меѓународно научно списание

Печатено издание: ISSN 0585-9069
Онлајн издание: ISSN 1857-9507

FOREST REVIEW

International Scientific Journal

Print publication: ISSN 0585-9069
Online publication: ISSN 1857-9507

Шумарски преглед, год. 45

Forest Review, Vol. 45

2014 г., год. 45 (онлајн издание) | Year 2014. Vol. 45 (online publication)

Issue Articles

Emergence of natural regeneration of Arizona cypress (Cupressus arizonica Greene) in burnt areas at the locality “Miladinovci” in Skopje

Authors: Kiro Delov, Nikolco Velkovski, Kole Vasilevski

⇑ DOI: 

Original scientific article

 

Abstract:

This paper presents the results of the research on the emergence of the natural regeneration of the Cupressus arizonica Greene on completely burnt forest areas in the Miladinovci site – Skopje. These areas were afforested with C. arizonica  Greene and black pines in 1977 and they successfully developed until the fire. The high forest fire in 2013 burnt 94% of the trees on a total surface area of ​​766.5 ha. In the following two years natural regeneration of the C. arizonica was notable in close proximity to the parent plantations. This paper presents the research on the emergence of natural regeneration of C. arizonica in the seedling development phase, as well as the qualitative and quantitative characteristics of regeneration unitsin different locations of the burned areas. The results of the research indicate that as a result of the fire and the burning of the plantations of C. arizonica, there is the appearance of natural regeneration in large numbers and of good quality. This situation leads to a successful natural regeneration of C. arizonica in the burnt forest areas.

Keywords: Cupressus arizonica Greene, natural regeneration, forest areas, forest fire.

Studying of particular elements which characterize Sequoiadendron giganteum (Lindl.) Buchholz trees on Karadzica mountain

Authors: Kiro Delov, Nikolco Velkovski, Kole Vasilevski

⇑ DOI: 

Original scientific article

 

Abstract:

This paper shows the results from the researches and studies of particular elements which characterize the crown of Sequoiadendron giganteum (Lindl.) Buchholz trees on the Karadzica Mountain. The Sequoia tree was introduced in 1965, in the area of the Quercus petraea and throughout its 50-year growthit has shown very good adaptability and productivity, which exceeds all other introduced non-indigenous types of trees, as well as the other indigenous types of trees. Having in mind that the crown of the Sequoia trees on Karadzica Mountain has never been studied, this paper contains information on the researches made on its structural elements,which have been processed mathematically and statistically and produces information on the main structural elements which characterize the crown. The results obtained from the conducted researches show that Sequoiatrees form properly developed cone-shaped crowns. The crowns are characterized with higher vertical length and a high share of the crown in the total height of the tree, varying between 57 % at the suppressed trees, 65 % at the codominant trees and 71 % at the dominant trees. The horizontal projection of the crowns is varying between 33.81 m² and 13.06 m². Crown index values for the Sequoia tree point out that it has higher predispositions for a greater development of the crown in height than in width. The established average mean coefficient values for the growth of the crowns point out that the Sequoia has lower coefficients and lower capability to overrun the space in width. The average mean values for the relative growth space point out that theSequoiauses more space for growth in height than in width.

Keywords: crown, introduction, Sequoia tree (Sequoiadendron giganteum /Lindl./ Buchholz).

The health condition of coniferous forests and cultures in R. Macedonia with a special focus on insect pests

Authors: Sterja Nacheski, Irena Papazova-Anakieva

⇑ DOI: 

Original scientific article

 

Abstract:

In the conifer stands in the Republic of Macedonia the most damaging insects are detected in the pine stands. From the large number of identified pests in the last three decades, the most significant damages were done by the following species: Thaumetopoea pityocampa Den. et Schiff., Neodiprion sertifer Geoff., Diprion pini L., Rhyacionia buoliana Den. et Schiff., Pissodes notatus F., Monochamus galloprovincialis Ol. and the bark beetles (Hylastes linearis Erich., Hylastes ater Paik., Tomicus minor Hart., Tomicus piniperda L., Pityogenes bidentatus Hrbst. Pityogenes bistridentatus Eich., Pityogenes quadridens Hart., Ips sexdentatus Boern., Ips acuminatus Gyll., Ips mansfeldi Wach. and Ortothomicus erosus  Boern.). The pine processionary moth in the pine stands in the R. of Macedonia has been in overpopulation on a regular intervals of 4 or 5 years. Such gradation of these species were registered in 1990, 1995, 2001 and 2010, when more than 20.000 ha of pine stands were attacked. In 2009 nearly 15.000 ha and 2010 – 19.100 ha showed very high population density, with serious threats for total defoliation and possibly destruction. According to our data, the number of caterpillar nests from the generation 2015/16 ranged from 700 in the locality Kalaslari-near Veles to 22.000 per 1ha in locality Crnilishki Rid- near Sveti Nikole. From 11 bark beetle species, Ips sexdentatus Boern. and Ips acuminatus Gyll. had the highest populations in the regions near Berovo, Strumica, Kavadarci, Kochani, Delchevo, and  in the regions near Sveti Nikole – Pityogenes bistridentatus Eich. and Bitola- Ips sexdentatus Boern. Ips acuminatus  Gyll. and Tomicus minor Hart. The abundance of the other pest insects: Neodiprion sertifer Geoff., Diprion pini L., Rhyacionia buoliana Den. et Schiff., Pissodes notatus F., Monochamus galloprovincialis Ol. and Coleophora laricella Hb. in natural and newly planted coniferous stands in  the R. of Macedonia is low.

Keywords: insects, pine processionary moth, bark beetles, larch casebearer, defoliator, population dynamics.

The role of Public Enterprise “Makedonski Šumi” in development of the small and medium forest-harvesting services enterprises: the case studies of tenders made in 2010 and 2011

Authors: Goce Nikolovski, Makedonka Stojanovska

⇑ DOI: 

Original scientific article

 

Abstract:

Small and medium enterprises represent a very important segment of the national economy of developed countries. Republic of Macedonia is not an exception on this, where bigger number of the business entities comes under this category. The situation is reflected on the forestry sector as well, within which many SMEs offer their services to the Public Enterprise Macedonian Forests. The forest sector can secure work of the small and medium enterprises as: collecting, trading and processing of non-timber products, tourism and providing of recreational services, wood processing (sawmills); production of furniture and providing of services for performance of the forest harvesting services of cutting, hauling transport and transport of timber. The paper uses analysis of secondary data (both qualitative and quantitative data). The data are further rely on content analysis of the contract signed between Public Enterprise Macedonian Forests and small and medium enterprises for the period of 2010 and 2011. Thus, the main goal of this paper is analysing the number of contracts between SME`s and PEMF and the amount of money within that contracts in 2010 and 2011. The results have shown that 278 SMEs have signed 880 contracts with of around 1,7 billion denars for performing of forest harvesting and silviculture services. Taking into consideration the number of small and medium enterprises that provide services within the forestry area and according to the financial means allocated for their services, the provided analyses imply on good conditions for the small and medium enterprises work and their functioning in the country which has a good implication on the forestry and on the overall economy of the country, as well.

Keywords: forestry, forest services contracts, wood cutting, logging and transport of timber, PE “Makedonski šumi”, forestry sector employees.

The greenery of four most important boulevards in Skopje

Authors: Jasminka Rizovska-Atanasovska, Viktor Vulgarakis

⇑ DOI: 

Professional article

 

Abstract:

The boulevard greenery in Skopje, besides the other greenery in the city should fulfill particular functions for an urban environment. The most important one is to be a purifier of the polluted air close to the roads or boulevards. Besides that, it has to be decorative, contributing to the aesthetic image of the city. The most important for functioning of this type of greenery in this climate conditions, is: the proper irrigation system, the place of growth, the influence of the conditions of the environment and the human factor. It aims to be effective and functional, in accordance with the current conditions on the location, as well as using proper measures for its maintenance.

Keywords: boulevard greenery, urban environment, aesthetic image, City of Skopje.