Lucrarea pe care o reproducem în acest număr al revistei Bucovina Forestieră constituie o continuare a celei prezentate în numărul anterior, care evoca întemeierea și perioada de început a învățământului silvic în Regatul României, desfășurată în cea de-a doua jumătate al sec. al XIX-lea Aceasta continuă prezentarea retrospectivă a învățământului superior silvic din România pe durata primelor 3 decenii ale sec. XX, între 1906 și 1933. Prezentarea este împărțită pe 2 perioade distincte: (i) perioada 1906-1923, subîmpărțită, la rândul ei, în două secvențe separate de primul război mondial, respectiv anterioară (1906-1916) și posterioară (1919-1923) războiului; (ii) perioada 1923-1933.

Peste câteva zile, Asociația Administratorilor de Păduri (AAP) va împlini 13 ani de la înregistrarea oficială. Organizația, înființată cu respectarea Ordonanței 26/2000, are obiective de bun simț, scopul principal al uniunii fiind, de asemenea, generos și încurajator: ”gospodărirea durabilă a pădurilor, gestionarea ariilor naturale protejate, conservarea naturii prin acțiuni și proiecte care aduc beneficii reale mediului înconjurător. Informarea și educarea în scopul conservării biodiversității și promovării unei atitudini responsabile față de natură”. Deocamdată, asociația include 104 membri, ce au în proprietate păduri diverse, din mai toate regiunile țării, ce însumează peste un milion de hectare. Președintele în exercițiu al AAP este domnul inginer Gabriel Stanciu, specialist cunoscut pentru competența și experiența sa în domeniul silvic. Domnia Sa a acceptat să acorde un amplu interviu publicației Bucovina Forestieră vorbind deschis despre cum este privită silvicultura în România, ce dificultăţi întâmpină proprietarii privaţi de pădure, care este relaţia cu Romsilva şi care ar fi metodele prin care silvicii români să redevină, în ochii opiniei publice, bravii şi responsabilii apărători ai pădurilor.

Technical harvesting ages were calculated for the main wood species in Romania: Norway spruce, silver fir, Austrian pine, European larch, European beech, sessile oak, pedunculated oak, Turkey oak, Hungarian oak, European hornbeam, silver birch, silver linden, willow, black locust, silver poplar and black poplar. Target wood assortments considered in the study were established based on dimensional assortments presented in the Romanian sorting tables. The actuality and the relevance of this study is given by several factors, such as the diversification of ownership structure over the forest lands in Romania and the necessity of technical harvesting ages established for a wider range of wood assortments than those presented in the Romanian technical norms for forest management planning. Since the current technical harvesting ages are based on the old Romanian yield tables and taking into account the numerous changes of the Romanian forest laws, an upgrade of harvesting ages was necessary. | În curând

The importance of green spaces in urban areas is a concept more and more discussed and included in the political agenda. Investments in green infrastructure can change the perception of residents, visitors or future investors about the attractiveness of a city. However, such investments are not easy to be achieved. Besides the human and financial capital necessary for the physical realization of the investments, an essential aspect is the perception of the inhabitants or visitors about the possible alternatives to combine the recreation facilities with the forest-specific natural landscapes. The object of this study is represented by the forest surrounding the Suceava citadel, named Șipote Dendrological Park. The area is a public owned forest and currently has recreational and soil protection functions assigned. In this context, the main purpose of the research is to identify the perception of the local community regarding alternatives of transforming this urban forest into a forest park. The specific objective of the research are: 1) the identification of community’s preferences for alternative strategies involving cutting of different sizes of forest to create recreational facilities; 2) the identification of preferences regarding the recreational facilities desired in an urban forest; 3) the identification of the willingness to pay for the investments nedeed to create a forest park. To assess the value of ecosystem services that are preferred by the local community we have used the contingent valuation method that helps identify consumers’ preferences over a range of alternatives. The method was based on the creation of three credible scenarios to test the alternatives for setting up different recreational facilities in the urban forest. The scenarios are identified based on a list of recreational facilities which imply interventions in cutting the forest as: S1-no forest cuts, S2-a cut of less than 30% of the forest area and S3-a cut of more than 30% of the forest area. In total, 305 questionnaires have been applied to identify citizens’ preferences which assures a confidence interval of 5.6%. The results show that the local community wants to retain the recreational function offered by the presence of the forest and desires in addition investments involving the creation of facilities for outdoor activities. Most of the surveyed participants are in favour of the second scenario and will like to have investments in cycling trails, kids’ playgrounds, fountains and an artificial lake. Nevertheless, the majority of the respondents are not willing to pay an entrance fee to compensate the value of additional facilities. | În curând

In this article we present an application of the IBP index (Potential Biodiversity Index), used for assessing potential biodiversity in forest stands. The proposed index is based on the score of ten factors: seven are related to forest management (structural particularities of the forest) and three are related to environmental context. The study was conducted in a mixed forest located in Ursoaia area from Frasin, Suceava Forest Department, Romania. The factors were evaluated in 96 plots from 6 forest stands, 3 of them included in a scientific reservation, and 3 are timber production stands. The index values were calculated for each plot, and further for each forest stand. Index values varied from a stand to another, also within the same stand, from one sample plot to another according to the specific feature identified in each plot. The index values were higher in the stands included in the scientific reservation. This is explained by the number of tree species, the high number of large trees, the vertical structure of the stands, the amount of dead wood. IBP – index is a good tool to evaluate the forest biodiversity. The results can be analyzed for longer periods of time, and also may indicate the factors that can be improved by specific actions. | În curând

Forest restitution was a common process for former communist countries in Eastern Europe. The way this process was conducted in Romania,  corroborated with inadequate legislation and lack of enforcement mechanisms, constituted the reason for improper forest management in many regions. The study is assessing, in a comparative manner, the effects of forest management in state and private forests over the structure of the growing stock and over the wood production sustainability. The private forests were managed without a forest management plan while the forests owned by state were managed according to forest management plans prescriptions. It was found that, in the case of private forests, the growing stock structure against age classes, analysed in respect to forest composition and density, was seriously affected by the anthropogenic interventions directed by no management rule. The simulations of the growing stock evolution revealed that in the case of private forests, the optimization of current growing stock will be possible after more than 180 years. In the scenario when their management would have been ruled according to the provisions of a forest management plan, the growing stock optimization would have been possible in about 120 years. In addition, the analysis of the economic efficiency of the practiced forest management in the private forests shows that the net yearly income per hectare is less than 13% from the income that could have been achieved if the forests would have been managed according to the original forest management plan. | În curând

Defoliation of some Norway spruce stands, caused by Cephalcia abietis, was first reported in Romania in the autumn of 2015. The outbreak has affected 58 ha in the Eastern Carpathians and 190 ha in the Southern Carpathians. The species was previously known only as a faunistic element in the country and very little information on its biology, ecology, detection, forecast and population control is available in the Romanian literature. This paper is a synthesis of information concerning the web-spinning spruce sawfly, whose aim is to fill the knowledge gap. C. abietis is a species with a vast distribution area, but repeated outbreaks were reported especially from Central Europe. In the outbreak areas, the most insects of a generation need 2-3 years to complete their development, so that an intense flight and a stronger defoliation take place every 2-3 years. Although mortality factors affecting the populations of C. abietis are very numerous, they fail to keep defoliator populations under control and outbreaks may extend for a long time. Mass multiplication occurs mainly in pure Norway spruce stands older than 60 years, at medium altitudes (600-1000 m), in places exposed to periodic drought or pollution. Biological and ecological peculiarities of this species make the prognosis of defoliation much more labor intensive than that for other defoliators, although quite uncertain. The chemical control, with partially selective insecticides (chitin synthesis inhibitors), was usual during recent decades, while biological control is still in the experimental phase. Consequently, greater emphasis should be placed on preventing mass multiplication of this species. | În curând

În curând

În curând