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The Balkans - the most erosive part of Europe? 巴尔干半岛——欧洲最具侵蚀性的地区?
Pub Date : 2015-01-01 DOI: 10.2298/GSF1511009B
I. Blinkov
Soil erosion has been occurring over the geological time. Inappropriate human activities accelerate this process. Soil erosion by water is a widespread problem throughout Europe. The South and Southeast regions of Europe are significantly prone to water erosion. In parts of the region, erosion has reached a stage of irreversibility and in some places erosion has practically ceased because there is no soil left. Scientists from the Balkan countries faced with the erosion problem for years, paid significant attention to solving problems with erosion. The aim of this study is to compare the results of water erosion intensity in the Balkan countries with other European countries. The basic methodological approach in this paper is an analysis of secondary data, using the method of “content analyses” of various data sources. Inductive and deductive qualitative analysis was used and finally the method of “comparative analysis” is applied too. Through the analysis of national researches, it was estimated that erosion intensity in Balkan countries is 548 m3km-2 (similar to 5.48 tha-1) and the total amount of annual produced erosive material is 419.9 *106 m3. The mean European average annual erosion intensity is 3.13tha-1. The most erosive countries in Europe are the Balkan countries, Albania and Montenegro where the mean annual intensity of erosion is > 10 tha-1.
在地质时代,土壤侵蚀一直在发生。不适当的人类活动加速了这一过程。水土流失是整个欧洲普遍存在的问题。欧洲南部和东南部地区非常容易受到水侵蚀。在该地区的部分地区,侵蚀已经达到了不可逆转的阶段,在一些地方,侵蚀实际上已经停止,因为没有土壤留下。来自巴尔干国家的科学家多年来一直面临着侵蚀问题,他们非常重视解决侵蚀问题。本研究的目的是比较巴尔干国家与其他欧洲国家的水侵蚀强度结果。本文的基本方法是对二手数据进行分析,采用对各种数据源进行“内容分析”的方法。采用归纳和演绎定性分析,最后采用“比较分析”的方法。通过对各国研究的分析,估计巴尔干国家的侵蚀强度为548 m3km-2(近似于5.48 km- 1),年产生的侵蚀物质总量为419.9 *106 m3。欧洲年平均侵蚀强度为3.13 -1。欧洲侵蚀最严重的国家是巴尔干国家、阿尔巴尼亚和黑山,这些国家的年平均侵蚀强度为100.1。
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引用次数: 13
Structural and productivity characteristics of montane beech forests in the area of Radava mountain. 拉达瓦山区山毛榉森林结构与生产力特征。
Pub Date : 2015-01-01 DOI: 10.2298/gsf1511037g
I. Golic
This paper presents a typological study of the ecological unit of mountain beech forests in the area of Radava mountain. The aim of this research is to present the basic characteristics of these forests ecosystems through the process of defining forest types. The results will help in defining the forest type and according to the results of this research will create conditions for a more realistic definition of goals in planning the management of these and other forest ecosystems.
本文对拉达瓦山区山毛榉森林的生态单元进行了类型学研究。本研究的目的是通过确定森林类型的过程来呈现这些森林生态系统的基本特征。研究结果将有助于确定森林类型,并根据这项研究的结果为更现实地确定规划管理这些和其他森林生态系统的目标创造条件。
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引用次数: 0
An analysis of briquette value chain at the Limsko forest area. 林斯科林区型煤价值链分析。
Pub Date : 2015-01-01 DOI: 10.2298/GSF15S1111R
N. Ranković, Dragan Nonic, J. Nedeljković, Aleksandar Musić
Value creation represents an increase in the value of assets in the manufacturing process. Business processes that lead to value creation can be presented as a value chain. For wood products, total value creation takes place in the complex processes of production and exchange between forestry and timber industry. The research on the use of biomass for energy purposes is increasing in recent decades. Within the research on value chain, in our country were, to less extent were represented those related to woody biomass products. In this sense, the aim of the research is to determine the organization of woody biomass products (briquettes) value chain and its analysis in the Limsko forest area. A “door-to-door” survey was used as a research technique. Data collection was conducted in the period from April to May of 2013. In total, 19 representatives of enterprises, which are participants in the woody biomass products value chain in the Limsko forest area were surveyed. Manufacturing enterprise, located in Nova Varos, was analysed as the main participant in this chain. In addition, its suppliers (15), wholesaler (1), retailer (1), and consumer (1) were analysed. The manufacturing enterprise exclusively used raw material produced in sawmills. The results indicate that an increase in value occurs, primarily, during the transportation of raw materials from sawmill to the manufacturing enterprise. The next increase in value occurs during the storage of raw materials within the manufacturing enterprise and with the emergence of new stages in the production process, as well as during the transportation of products to the wholesaler, retailer and consumer.
价值创造代表了制造过程中资产价值的增加。导致价值创造的业务流程可以表示为价值链。对于木制品而言,总价值的创造发生在林业和木材工业之间复杂的生产和交换过程中。近几十年来,关于利用生物质的能源目的的研究正在增加。在价值链的研究中,在我国,与木质生物质产品相关的研究较少。从这个意义上说,研究的目的是确定林姆斯科森林地区木质生物质产品(压块)价值链的组织及其分析。一项“挨家挨户”的调查被用作研究技术。数据收集时间为2013年4月至5月。共有19家企业代表参与了林姆斯科林区木质生物质产品价值链,他们接受了调查。分析了位于Nova Varos的制造企业作为该链条的主要参与者。此外,对其供应商(15)、批发商(1)、零售商(1)和消费者(1)进行了分析。制造企业只使用锯木厂生产的原材料。结果表明,价值的增加主要发生在原材料从锯木厂到制造企业的运输过程中。下一个增值发生在原材料在制造企业内部的储存过程中,随着生产过程中新阶段的出现,以及在产品运输到批发商、零售商和消费者的过程中。
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引用次数: 0
Italian alder (Alnus cordata/Loisel./Desf.) - new species for allochtonous dendroflora of Serbia. 意大利桤木(Alnus cordata/Loisel./Desf.) -塞尔维亚异域树木植物新种。
Pub Date : 2015-01-01 DOI: 10.2298/gsf1511021b
M. Bobinac, S. Andrašev, M. Perović, Andrijana Bauer-Živković, Djura Jorgic
The foreign tree species, Alnus cordata/Loisel./Desf. (Italian alder), (Betulaceae/Loisel./Duby), not previously recorded in the dendroflora of Serbia, is described in this paper. Italian alder trees in an experimental plot in the area of Erdevik, aged 11 years, show good vitality and fast growth, and bear fruits since their 10th year. Tree heights are in range from 10.4 to 16.2 m, and diameters at the breast height range from14.6 to 34.9 cm. The morphological properties of leaves, fruiting organs (“cones”) and male catkins are in concordance with the values in literature sources, although they show great variability. Since the time of plantation establishment, the absolute minimum air temperature in the nearby meteorological station of Sremska Mitrovica was -26.50C, so it can be assumed that the species is frost hardy. On the basis of the researched properties of Italian alder, it can be concluded that this species can be cultivated in Serbia as an ornamental in urban areas and as a fast growing species in forest plantations for biomass production. [Projekat Ministarstva nauke Republike Srbije, br. 31041: Sumski zasadi u funkciji povecanja posumljenosti Srbije]
外来树种Alnus cordata/Loisel./Desf.;本文描述了一种在塞尔维亚树木植物区系中未见记录的(意大利桤木),(Betulaceae/Loisel./Duby)。埃尔德维克试验田的意大利桤木树龄11年,生命力好,生长快,第10年就结果了。树高在10.4到16.2米之间,胸径在14.6到34.9厘米之间。叶片、子器官(“球果”)和雄絮的形态特征与文献资料的值一致,但差异较大。自种植以来,斯雷姆斯卡米特罗维察附近气象站的绝对最低气温为-26.50℃,因此可以认为该物种具有抗寒性。根据对意大利桤木特性的研究,可以得出结论,该树种可以作为塞尔维亚城市地区的观赏树种,也可以作为森林人工林中生物质生产的快速生长树种。[南斯拉夫]塞族共和国部长项目;[31041] [au:]
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引用次数: 1
Micropropagation of Achillea millefolium L. on half-strength MS medium and direct rooting and acclimatization of microshoots in hydroponic culture. 半强MS培养基上千叶水蛭的微繁殖及微芽水培直接生根驯化。
Pub Date : 2015-01-01 DOI: 10.2298/gsf1511099m
M. Marković, D. Skočajić, M. Grbic, M. Djukic, D. Obratov-Petković, Danijela Djunisijevic-Bojovic, Milica Borovica
The aim of this study was to determine the possibility of micropropagation of the medicinal plant A. millefolium on half-strength MS medium and ex vitro rooting and acclimatization of the obtained microshoots in hydroculture in order to establish an efficient production method. Two explant types were used: basal and terminal cuttings, and better results were achieved when terminal cuttings were used. The development of shoots in the multiplication phase was successful with a regeneration percentage of 100%. Ex vitro rooting in a modified Hoagland nutrient solution was successful (83%), but the percentage of in vitro rooting on half-strength MS medium without hormones was higher (95%). However, bearing in mind that mass production of A. millefolium is more efficient when the phase of in vitro rooting is excluded, this method could be recommended for commercial propagation of this medicinal plant. It is necessary to conduct additional research in order to optimize the composition, EC and pH value of the hydroponic nutrient solution. [Projekat Ministarstva nauke Republike Srbije, br. 43007]
本研究的目的是确定药用植物千叶在半强MS培养基上进行微繁殖的可能性,并对获得的微芽进行离体生根和水培驯化,以建立一种高效的生产方法。外植体分为基插和顶插两种,以顶插效果较好。繁殖期新梢发育成功,再生率达100%。在改良的Hoagland营养液中离体生根成功率为83%,但在无激素的半强度MS培养基上离体生根率更高(95%)。但是,考虑到当排除离体生根阶段时,千叶草的大规模生产效率更高,因此可以推荐这种方法用于该药用植物的商业繁殖。为了优化水培营养液的组成、EC和pH值,有必要进行进一步的研究。[南斯拉夫]塞族共和国部长项目;43007]
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引用次数: 1
Rehabilitation of a secondary network of forest traffic infrastructure (skid roads - skid trails). 恢复森林交通基础设施的二级网络(滑路-滑径)。
Pub Date : 2015-01-01 DOI: 10.2298/gsf15s1005b
M. Bajrić, D. Sokolovi̇c
Forest transport infrastructure is the key segment of rational forest resource management. One of its constituent and inseparable segments are skid roads and skid trails whose network density significantly exceeds the primary network, i.e. truck roads. Skid road -skid trail network density in high economic forests of FB&H is most often between 40 and 100 m/ha. Simplified way of construction, non-existence of road construction, objects for surface water drainage as well as significant longitudinal inclination (up to 50%) in which they are constructed, makes them subject to erosion processes. The lack of rehabilitation measures on skid roads - skid trails causes significant damages in post-exploitation period, and very often to the extent that the ones in the following exploitation round are unusable for skidding. Utilization of skid roads - skid trails damaged by erosion processes for forest operations often represents a significant expense. This paper considers rehabilitation measures efficient from the point of remedying erosion processes, and at the same time, acceptable from the point of financial expenditure for forest operations.
森林交通基础设施是森林资源合理经营的关键环节。其组成和不可分割的部分之一是滑道和滑道,其网络密度明显超过初级网络,即卡车道路。在FB&H的高经济森林中,滑路-滑径网络密度通常在40到100米/公顷之间。简单的施工方式,没有道路建设,地表水排水的对象,以及显著的纵向倾斜(高达50%),使他们的建设过程容易受到侵蚀。由于缺乏对打滑路面-打滑小道的修复措施,在开采后会造成严重的破坏,并且经常导致下一轮开采中的道路无法用于打滑。利用被侵蚀过程损坏的滑道用于森林作业通常是一笔巨大的费用。本文认为,从补救侵蚀过程的角度来看,恢复措施是有效的,同时从森林作业的财政支出的角度来看,是可以接受的。
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引用次数: 1
Analysis of the means of forest harvesting in the Federation of Bosnia and Herzegovina 波斯尼亚-黑塞哥维那联邦森林采伐手段分析
Pub Date : 2015-01-01 DOI: 10.2298/GSF15S1055H
V. Halilović, J. Musić, Safet Gudra, J. Topalović
The development of technology and the means of labour in the technological process of forest harvesting in FBiH mainly depends on the factors related to the specific manner of forest management. The dominant share of mixed tall forests with natural regeneration, the selective manner of management and rather difficult natural conditions have resulted in the application of the cut-to-length method and to a lesser extent, the tree-length and semi-tree-length methods. On the basis of expert classification of the development phases in forest harvesting, it can be noted that wood assortment production in FBiH is currently partially mechanised. With the aim of defining measures for increasing productivity, lowering the costs and a greater humanisation of work, there has been an analysis of the current state of the means of work in all three phases of forest harvesting. The analysis included the following parameters: number of means in different phases, the type, the average age, ownership and technical planned obsolescence. All the data were collected through a survey which included all stakeholders (cantonal forest companies and private contractors). The results showed a satisfactory state only when chainsaws are concerned, i.e. the rather cheap tools. Other equipment (adapted tractors, skidders, trucks, etc.) has largely reached planned obsolescence. Their old age results in a low level of utilisation, i.e. an insufficient amount of working hours per year which eventually leads to a decrease in productivity and increase in expenses. Based on the data, it can be concluded that it is necessary to begin the process of new mechanisation procurement and the replacement of existing, time-worn and technologically obsolete machines with new ones. At the same time, it is clear that, in the conditions of low availability of investment capital and cheap labour force, this has to be a gradual process. In relation with this, the process should start in the most expensive phase - timber extraction, i.e. the phase in which the economic efficiency is unquestionable.
波黑联邦森林采伐技术过程中的技术和劳动手段的发展主要取决于与森林经营的具体方式有关的因素。自然更新的混交林占主导地位,有选择性的管理方式和相当困难的自然条件,导致采用切长法,较少地采用树长法和半树长法。根据专家对森林采伐发展阶段的分类,可以指出,波黑联邦的木材分类生产目前部分机械化。为了确定提高生产力、降低成本和使工作更人性化的措施,对森林采伐所有三个阶段的工作手段的现状进行了分析。分析包括以下参数:不同阶段的平均数、类型、平均年龄、所有权和技术计划报废。所有数据都是通过调查收集的,调查对象包括所有利益相关者(州森林公司和私人承包商)。结果表明,只有当链锯,即相当便宜的工具,令人满意的状态。其他设备(改装过的拖拉机、打滑车、卡车等)大部分已达到计划淘汰的程度。他们年纪大了,导致资源利用率低,即每年的工作时间不足,最终导致生产力下降和开支增加。根据这些数据,可以得出的结论是,必须开始采购新的机械化和用新的机器取代现有的、陈旧的和技术上过时的机器。与此同时,很明显,在投资资本不足和劳动力廉价的情况下,这必须是一个渐进的过程。关于这一点,这个过程应该从最昂贵的阶段开始- -木材开采,即经济效率毋庸置疑的阶段。
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引用次数: 2
Fuel consumption in the transport of technical broadleaf roundwood in lowland areas 低地地区技术阔叶圆材运输的燃料消耗
Pub Date : 2015-01-01 DOI: 10.2298/GSF15S1025D
M. Danilović, M. Ilić, N. Ćuprić, Slavica Antonić, D. Stojnić
This paper presents the results of an analysis of fuel consumption in the transport of technical roundwood of soft broadleaves from the felling site to a roadside landing using forwarders and tractor assemblies. The research was performed in various operating conditions in the area of FE "Banat" Pancevo. On the basis of the results of the analysis of variance, the data recorded in a variety of conditions were grouped. In addition, the dependence of fuel consumption on the average volume of tour was estimated. The results of the conducted analysis indicate that operating conditions significantly affect fuel consumption of the investigated vehicles. The elements of statistical analysis of the dependence of fuel consumption on the volume of load indicate that an increase in load causes increased fuel consumption per unit of production. Having in mind the results of the analysis of variance, unique norms of fuel consumption were adopted for practical purposes. The highest average consumption (1.21 L/m3) was achieved by a tractor assembly (Same Laser 130 tractor and Imako TP12 trailer with a Loglift 61F hydraulic crane), while significantly lower consumption was achieved by a John Deere 1210E forwarder (1.06 L/m3). In favourable operating conditions, consumption of the forwarder was about 0.9 L/m3.
本文介绍了使用货运代理和拖拉机组件从采伐地点到路边着陆的软阔叶技术圆木运输的燃料消耗分析结果。该研究是在FE“Banat”Pancevo地区的各种操作条件下进行的。在方差分析结果的基础上,对各种条件下记录的数据进行分组。此外,还估计了燃油消耗量对平均行驶量的依赖关系。分析结果表明,工况对所研究车辆的油耗有显著影响。燃料消耗依赖于负载量的统计分析的要素表明,负载的增加导致每单位生产的燃料消耗增加。考虑到方差分析的结果,为实际目的采用了独特的燃料消耗标准。牵引车组件(Same Laser 130牵引车和Imako TP12拖车以及Loglift 61F液压起重机)的平均能耗最高(1.21 L/m3),而约翰迪尔1210E货代的平均能耗明显较低(1.06 L/m3)。在良好的运营条件下,货代的消耗量约为0.9 L/m3。
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引用次数: 0
The National Forest Inventory of Serbia: state and possible further directions of development. 塞尔维亚国家森林清查:现状和可能的进一步发展方向。
Pub Date : 2015-01-01 DOI: 10.2298/GSF1512009P
D. Pantić, Dragan Borota
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引用次数: 1
Meteorological disasters in Slovenian forests - how to approach the restoration in our specific conditions. 斯洛文尼亚森林的气象灾害-如何在我国的具体条件下进行恢复。
Pub Date : 2015-01-01 DOI: 10.2298/GSF15S1085M
J. Marenče
In recent years, forests are exposed to various meteorological disasters. The climate change and warming of atmosphere cause more intensive and frequent occurrences in the atmosphere. This is also reflected in Slovenian forests - in particular in the form of windthrow, snow-damage, landslides and avalanches, and in 2014 a catastrophic ice storm. Some forecasts indicate that the future will bring more of this kind of disasters. The ice storm in the last year stroke the land the most in history, in particular in terms of damaged trees and areas. According to the available data, the damaged quantities of trees represent more than a two years planned annual cut in Slovenian forests, while about a half of the country was affected. The majority of the damaged wood comes from private forests. The remedying of such extensive meteorological disasters is demanding, dangerous and prolonged - it is also hindered by the specific ownership structure of the forest land in Slovenia and its average size. 75% of all forest have private owners, and this land is fragmented with a large number of forest holders. An average forest land is only 2.3 ha per individual owner. In these conditions, the following questions have to be answered: who, how and in what time is it possible to remedy the caused damage? What is the current quality of wood which was damaged in many ways in the meteorological disaster? Is it possible to use more modern felling technologies and wood transports from the forest in so fragmented private land?
近年来,森林遭受各种气象灾害。气候变化和大气变暖导致大气中发生的现象更加强烈和频繁。这也反映在斯洛文尼亚的森林中——特别是以狂风、雪灾、山体滑坡和雪崩的形式,以及2014年灾难性的冰暴。一些预测表明,未来将带来更多的这类灾难。去年的冰暴对陆地的影响是有史以来最大的,特别是在树木和地区受损方面。根据现有数据,受损树木的数量相当于斯洛文尼亚森林两年计划的年度砍伐量,而该国约有一半的地区受到影响。大部分被破坏的木材来自私人森林。对这种广泛的气象灾害的补救是艰巨、危险和长期的- -它还受到斯洛文尼亚森林土地的具体所有权结构及其平均面积的阻碍。75%的森林为私人所有,这片土地因大量的森林所有者而支离破碎。每个森林所有者的平均林地面积只有2.3公顷。在这种情况下,必须回答以下问题:谁、如何以及在什么时间内可以补救造成的损害?在气象灾害中受到多方面破坏的木材目前的质量如何?是否有可能在如此分散的私人土地上使用更现代的采伐技术和从森林中运输木材?
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引用次数: 1
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Glasnik Sumarskog Fakulteta Univerzitet u Beogradu
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