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The article presents the exposure of forestry activities in the most deforested counties of Romania пїЅ Suceava County. We have conducted a local economic research based on the forestry activities from that county. The database used in this research consists from the National Classification of the Economic Activities, codes at 4-digit level for each territorial administrative unit. The article focuses on the particular situation from the deforested communes: CпїЅrlibaba, Poiana Stampei, Iacobeni. It also presents ...

Aromatic and medicinal plants are an important source of antimicrobial molecules, especially in volatile extracts. The genus Thymus is considered among the richest general in secondary metabolites. In this context, this work examines on the study of the extraction of the organic compound by steam soxlhet of a species endemic Thymus numidicus from Bouira. These naturalsпїЅ substances are recovered by differents solvents; aqueous, ethanolic, and methalonic. On the other hand, the determination of the antimicrobial a...

Gridded climate data are valuable source of information that can be used in various fields of environmental studies. One of the example is dendroclimatological analysis, where climatic data are essential part of the study. These data are especially useful when there is a lack of weather station data for the study area, the available data are incomplete or their time span is insufficient. However the accuracy of gridded data can be sometimes questionable. In this study gridded data planned to use in dendroclimatolo...

This paper presents the possibility of using landscape metrics in the process of modeling vulnerability analysis of landscape qualities that should be protected when considering spatial decisions about its future land use. Modeling was carried out on the lower part of Krka River basin, in the Mediterranean part of Croatia. This area is under protection as a significant landscape according to the Croatian Nature Protection Act and it was chosen due to heavy developmental pressures that have resulted and still threa...

The paper deals with applying of the biogeographic model of climatic conditions of forest vegetation zones in the Czech Republic to forest management strategy under predicted climate changes. The biogeographic model which was developed at Palacky University Olomouc is based on climatological prediction data for the time period 2010 - 2100 according to Representative Concentration Pathways regional scenarios and geobiocoenological data related to forest vegetation zonation. As results presented, climatic conditions...

The paper deals with applying of the GIS tool пїЅgap analyseпїЅ in order to assess the effectiveness of protected areas in floodplain forests conservation in the Czech Republic. European floodplains have been significantly influenced by human activities in the past. Despite of it floodplain forests are important biodiversity refugees and thus these forests habitats are in the focus of conservation efforts. Currently, the Natura 2000 network increasingly supports biodiversity conservation in Europe. Based on result...

The populations of the native silver lime species (Tilia tomentosa Moench.), one of the most important forest tree species in Western Romania, Caransebes area, show strong vitality and a large morphologic variability. The present carried out research would like to contribute to explaining some aspects of the genetic diversity. The extension of silver lime, during the last decades, in the Caransebes area natural forests (by natural regeneration) seems to be a visible issue in the present-day climate change context....

Nowadays, deforestation process in Romania is in a growing trend considering the need for wood in industrial process, the fast rate of illegal logging and the need for lands in agriculture. Forest areas are subject of an increase pressure from socio-economic factors. Wood is used frequently as construction material and combustible. We investigated the evolution of forest areas in North-East Development Region and the incomes in economy related to forest activities (sylviculture and other forestry activities, loggi...

Due to the growing importance of forest changes and water management as factors influencing hydro-sedimentary dynamics and hydrological services, the analysis of the forest пїЅ water links may prove to be relevant for creating joint and adequate management schemes for these ecosystems. The main goal of this paper is to investigate the possible influences upon the hydro-sedimentary dynamics in the upper basin of Jiu River (2540 km2), induced by the changes in forest cover between 2000 and 2012. The relationship bet...

Today, the need for resources is growing based on the replacement of forest areas by areas used for economic and agricultural activities. The present study means to identify the changes in land use cover and forest areas between the changes made by the economic activities and aridity indexes, characterized by high temperatures and low quantities of precipitations in Southwestern Romania. This region is affected by high temperatures and low precipitations in July and August, growing urban areas and necessity for ag...

Rhythmic climate changes determine the necessity to refer to long time series to detect low-frequency vibrations of climatic parameters and their influence on the growth processes in ecosystems. Dendrochronological research of pubescent oak (Quercus pubescens Willd) in forest communities of the foothill forest-steppe (250-350 m a.s.l.) and core samples of buried wood in comparison with modern and reconstructed climatic conditions was carried out. The purpose of work was to develop regional tree-ring chronologies f...

The preserved complex of forest stands of the beech up to the spruce forest vegetation level mainly of primeval forest character within the National Nature Reserve ZadnпїЅ Po?ana has been a part of the core zone of the Biosphere Reserve Po?ana within the project пїЅHuman and BiosphereпїЅ of the UNESCO organisation since 1990. Also these forest stands are being influenced to a great extent by abiotic and biotic harmful agents, which negatively affect their health and further development. Since the late 1990s, the N...

Hardwood forest stands in Latvia serves mainly recreational purposes, as well as ensuring biological diversity. Ash stands in 2015 were occupied 0.4% of the total (2923515 ha) forest area. This proportion have been made up from the dominant tree species registered in the State Forest Register. The research was conducted in the pure and mixed stands (other species admixture up to 30%), selecting middle-age (44, 47 years) and mature (66, 67 years) stands with a density of 0.7. For data collection, were installed 16 ...

Having a surface of more than 17000 ha, Caransebe? Experimental Basis, of National Institute for Research and Development for Forestry, is the biggest experimental basis from Romania having in their experimental and administration areas, forests from plain to mountains, between 200 and 1600 meters altitude. Having good condition for vegetation of most important European forest species, Caransebe? Experimental Basis is an important managed area, where silver lime can found good condition of vegetation and where alt...

Geographically, the studied area is located in the north-central part of Valcea county, including the piedmont and mountain area of the Capatanii Mountains and also a part of the hilly region of the Oltenia Subcarpathians, including the forests located in the upper basin of the Govora river. By phyto-climatic point of view the forests of this area belong at two categories: F.M.1 + F.D.4 пїЅ mountain-piedmont area of beech and F.D.3 пїЅhilly evergreen beech area and beech-sessil oak area. The researches were made i...

The set complex of methods for effectuation of the ecological monitoring of the anthropogenic impact areas as well as undisturbed was worked out by the authors. This method has been tested from 1997 to 2016 in Kostomukshsky State Nature Reserve. The typical part of northern forests of the European part of Russia and Rangifer tarandus fennicus is being protected. The reserve is part of the Finnish-Russian Friendship nature reserve. The Kostomuksha Mining and Processing Plant, the city of Kostomuksha, transboundary ...

The aim of this study was experimental assessing the emission of greenhouse gasses (CO2, CH4) from decomposed coarse woody debris in northern boreal forests of Siberia, where the main forest-forming species is larch (Larix gmelinii (Rupr.) Rupr.). Logs samples were collected in northern boreal larch forests of Central Evenkia (64пїЅN, 100пїЅE) at different stages of decomposition and placed in gas-tight boxes. Gas samples were measured in dynamics: at the beginning of the experiment and after 3 hour, 24 hours, aft...

In particular, Sub-Sahara Africa and UgandaпїЅs energy sector is dominated by biomass, which contributes over 90% of the total expendable energy. Herein firewood and charcoal contribute more than 85%. The main use of biomass energy is cooking and or heating either as firewood or charcoal majorly by local households. There is also huge demand from commercial activities such as the production of bricks and some factories. In many areas, biomass continues to be the energy source of choice due to unavailability or una...

Close-range photogrammetry (CRP) represents very perspective technology for many fields. It can provide results comparable to terrestrial laser scanning, and the hardware is still much cheaper. Our research group is developing low-cost CRP device based on Raspberry Pi 3 computer. Raspberry Pi 3 is a single-board computer with relatively high computing power and low price. In connection with a touchscreen, Pi Camera module v2.1 (Sony IMX219, 8Mpx) and powerbank it becomes a portable device for imagery. Continuous s...

Key element of any soil environmental monitoring is correct reference site. In such big object of monitoring as Moscow megalopolis it cannot be only one reference site but in any case their number must be very limited and each monitoring site have to be very well validated by the previous monitoring investigated data. One of the best candidate for official local reference site of soil environmental monitoring in the northern part of Moscow is the central core of the Forest Experimental Station of the Russian Timir...

Agriculture, regarded as one of the oldest occupations of mankind, practiced by different techniques and differentiated means according to the general level of development, is still the main socio-economic supporter at the level of the analyzed area. If in Romania's "agricultural past" the attention was concentrated on maximum, immediate and "indifferent" production, at present, under the action of international politics, there are remarkable administrative, organizational and technical capitalist nuances, dictate...

This paper presents current research done under the GEMINI (Geospatial monitoring of green infrastructure using terrestrial, airborne and satellite imagery) project. GEMINI is a scientific project of the Faculty of Geodesy, University of Zagreb and Croatian Forest Research Institute funded by the Croatian science foundation. The project aims to explore new knowledge about the green infrastructure (GI) monitoring. The study area of the research is the capital of Croatia, the city of Zagreb. One of the main goals of...

The study investigates the degree of heavy-metals contamination of a non-timber forest species in terms of food chain contamination (plants-animals/plants-man) in an area with a historical pollution in the context of ceasing the main activity of the major air pollutant, Sometra S.A. Copsa Mica, since 2009. The heavy metals (Zn, Cu, Pb and Cd) content in common blackberry (leaf and fruit), was determined in eleven sampling areas located at different distances and altitudes, in the forestry area surrounding the city...

Forest plays a multifaceted role, which is determined by its economic, ecological and social values; therefore, sustainable forestry development has to ensure a balanced use of all the values. For the first time in Latvia, the situation in hunting management was analysed, assessing the level of safety and traumatism. The research aim is to assess safety in the process of hunting and the real situation in Latvia. The research found that the most dangerous kinds of hunting were hound hunting and waterbird hunting du...

The contribution is focused on problematics of the impact of weather conditions to the phenological phases of broadleaved trees (Quercus robur L., Fagus sylvatica L., Tilia cordata Mill., Prunus spinosa L.) at the selected research areas in central Slovakia. There were recorded a 10% incidence of falling and yellowing leaves on a group of ten trees selected species. Factors taken in account were rainfall data, the number of tropical days and the length of growing season (June пїЅ August). The significant differenc...

The article is devoted to the improvement of circular saw machines with pneumatic drive of cutting mechanism. Currently, circular saws are widely used for producing of sawn timber because they have high productivity. The drive of saw blades more often is carried out by electric motors through additional transmission (gear, belt, etc.). In the recent literature are offered technical solutions, in which as a drive of circular saws provided by using of pneumatic. Energy source interacts with the circular saw will all...

The research studied the influence of the volume and construction of пїЅHikoпїЅ and пїЅPlantekпїЅ containers on acorn germination, resistance of root-closing substrate, height of aboveground plant parts and length of root systems of oak seedlings. The cell volume in пїЅHikoпїЅ containers varied from 25 cm3 to 530 cm3 while in пїЅPlantekпїЅ containers пїЅ 115 cm3 пїЅ 275 cm3. The seedlings were grown in greenhouses of arch type with polycarbonate coating and automatic watering. Peat-moss was used as a substrate. Av...

Silver birch is economically important tree species in Latvia. Currently most of clearcuts in stands of this tree species are regenerated naturally, however, there is an increasing demand of birch plants. Around 5 mil. plants are produced in Latvia annualy, exceeding the amounts in other countries in the region. With a goal to intensity the forest management, while propagating only the best genotypes and reducing initial spacing in order to ensure large radial increment, recently testing of vegetatively propagated...

In this study the intra-site variations in climatic signal observed in tree rings of larch from the Polish Carpathian Mountains were analyzed. To identify the differences between tree-ring growth of particular trees within each of analyzed sites, the descriptive analysis, visualizations, Factor Analysis (FA), Principal Component Analysis (PCA) and Independent Component Analysis were used. For evaluating observed differences the clustering methods (k-mean, EM, c-mean, Kohonen Artificial Neural Network) with ANOVA a...

Currently, in connection with the deterioration of the environmental conditions, the per-son experiences daily stress. There is a growing need to improve the immu-Niceta people in vitamins, microelements and biologically active substances. Traditional means of im-mune support due to the low efficiency pale into insignificance. Therefore, growing de-mand for environmentally safe products medicinal plant with a high content of vitamins and biologists-cally active substances such as Panax ginseng. Ginseng is known to...

In this article we consider the opportunity of the use of tree-ring ?13C carbon isotope composition records for detecting and recognizing changes in forest ecosystems in the south of the West Siberian Plain where the growth conditions for conifer trees are generally optimal. Trees grow in the closed stands. The wood of Larix sibirica and Pinus sylvestris trees was chosen as object of our research. The values of carbon isotope composition (?13?) were measured in tree ring cellulose and lignin of Larix sibirica and ...

Protected natural areas are ideal for monitoring relatively undisturbed natural development of both inorganic and organic parts of ecosystem. The stock-taking of species occurring in the nature reserve is not only crucial to maintain the function of natural reserve, but also to monitor the development of species spectrum, as well as the diversity and succession under conditions relatively undisturbed by anthropogenic factors. Prosisko nature reserve was established in 1998 in order to protect forest ecosystems wit...

To combat climate change increase in carbon sink or forest cover is most important adaptation technique. India has committed to create additional carbon sink of 2.5 to 3 billion tonnes of CO2 equivalent by 2030 in Intended Nationally Determined Contribution (INDC) submitted to Paris meet COP 21 (Conference Of Parties). A IPCC Tier II analysis of different mangrove sites of India will give a better snapshot of role of mangrove cover as carbon sinks to combat climate change and to achieve national target of carbon s...

Every year wildfires during the dry and hot summer season cause serious damage in agro-forest systems in Mediterranean area. Preventive measures are the most important issue in order to ensure agricultural production and sustainable tourism. One of preventive measures is planting of vegetation fire protection belts by using a low flammable plant species. Among low flammable plant species carob tree (Ceratonia siliqua L., family of Fabaceae, subfamily of Caesalpinioideae) have special position. The carob tree grows...

In our paper we deal with the evaluation and comparison of precipitation totals and interception in living and dead climax spruce stands at a research plot of ?ervenec during the non-vegetation periods (from approximately October to May) in the years 2012 - 2016. The difference in interception was analysed from October 2012 because during the summer 2012 the forests in the area died due to the infestation by the spruce bark beetle (Ips typographus). The research site is located in the Western Tatras (Slovakia) in ...

The research aim is to estimate the profit a forest owner can earn per full forest rotation cycle from forest stands of dominant coniferous species in Latvia, selling both the assortment of logs and biomass (BM) from final felling. The research analysed the situation in privately managed forests, composed of the coniferous species пїЅ Norway spruce (Picea abies L.) and Scots pine (Pinus syllvestris L.) пїЅ in different forest types in Latvia. The calculation of revenue from forest product sales took into account b...

The research aim is to identify a financial gain a forest owner can make from the management of a deciduous forest stand in Latvia provided that the stand is logged at the final (clear) felling age and the revenue is earned selling the wood as roundwood assortments and residue biomass or only as biomass (BM). The present research analysed the situation with forests owned by natural persons of the Republic of Latvia and identified the amounts of revenue a forest owner can earn growing deciduous пїЅ birch, black ald...

The forest is generally recognized as a major environmental and stabilizing factor in the country. Its stability is currently significantly influenced by changing climatic conditions. They are an important factor in a determining species composition of forest ecosystems, as well as ecophysiological and production processes directly linked to the overall performance and stability of forest stands. Dry summer months and warmer winters with negative anthropogenic activities actually create more favorable conditions f...

In this paper we will describe a novel approach for forest management that includes remote sensing based monitoring, simulation and planning. When we think about sustainable forest management, it is important to know the vital facts about the forest, especially the annual increment of the timber volume for each forestry unit. A terrestrial census could deliver the required information, but it is too expensive to be carried out frequently. The alternative is a census based on remote sensing data. In this area we ob...

One of the main factors influencing the accuracy of the obtained lumber is the rigidity and stability of saws. In the process of sawing woodcutting tools heated. This phenomenon can cause a loss of rigidity and stability of saws. A log frames and band saws negative influence of heating can be compensated the additional tension and setting directing. Particular importance is the heating of circular saws due to the appearance of a temperature gradient along the radius in the process of sawing wood. Upon reaching the...

Growing a healthy, stable and quality forest stands while using their products in the most effective way possible is the primary aim of every forest manager, as well as the forestпїЅs owner, considering the fact that wood mass is still the most important source of income for the forest management in Slovakia. As a result of wood logging and conversion, a significant amount of waste wood mass is left over in the forest, manipulation sites, wood stocks, warehouses and saw pits. The waste wood, consisting of pieces o...

Because wood ash resulted from furnace facilities destined to solve the problem of wood debris, are cumulated in large amounts, the problem of an alternative to their storage is increasingly important. A using possibility, if free of harmful constituents, is their administration as soil fertilizer/amendment may be taken into consideration. This experiment was conducted in order to emphasize the effect of using ash resulted from oak debris burning in facilities destined to this aim, as soil fertilizer, administered...

In general, there is no natural soil surface that would not be threatened by water erosion. However, a number of methods that estimate the erosive soil risk incorrectly exclude forests and flat agricultural land from the category of areas vulnerable to water erosion. Forests are known for their soil protection functions, when a dense tree canopy interrupts precipitation and decreases the kinetic energy of water drops falling on the soil surface. Moreover, the top organic soil layer in forests has a very good infil...

The article presents the evaluation of the stability of vegetation in forest ecosystems, in places of mass rest in the woods on a lake in the littoral zone of pine forests of the Mari El Republic. Studies have shown that the amount of coniferous undergrowth ranges from 0.016 thousand PCs/ha to 0,104 thousand pieces/ha, and does not provide the initial stage of the formation of dark coniferous young growths. For deciduous species, mainly birch, in some cases, aspen is characterized by intensive growth, which preven...

In a forest ecosystem pine plantations, the National Park lower Kama Natural expansion of the path network and Parking areas, is characterized by an increase of stages of digression that slows down all the process of development of components of forest natural complexes. With the increase in recreational forest use and loads increases the number of trees with mechanical damage. Traumatized trees colonized by pests and diseases. There is a decrease in the number of healthy trees and an increasing number of worst . ...

The article shows methodology and principles of the system monitoring and integrated assessment of forestlands on the basis of the submission of such lands as a source of biological resources (including wood) and also as environment-forming and social functions source. Systematic monitoring of forestland is expressed in observations, assessment (in physical indicators) and prediction of all its natural resources potential. Scientific principles for a comprehensive assessment of forestlands include justification fo...

Forest resource is the most important natural resource. The Leningrad Region is one of the most developed subjects of the Russian Federation according to economic indicators. Logging, wood processing and timber exports are carried out in the region due to the reserves of forest resources. The consumption of forest resources should not exceed the productive natural forces. Improving forest management, ensuring rational use of forests, maintaining the ecological potential of the forest fund are essential aims. The s...

For unused agricultural land afforestation are several aims like, rational land use, rural landscape diversification, decrement of environment pollution, increasing recreation possibilities and other but also can be established or special purposes planted forest stands as plantation forest. In Latvia during year 2015 State Forest Service (VMD) registered 3.4 thou. ha of afforested agricultural land and 2.7 thou. ha were registered as plantation forests. Aim of research is to analyse sanitary condition of agricultu...

Croatian territory is located at the transition region of Southeast Europe and the Mediterranean. Stretching through this area, Croatian territory is increasingly affecting dry periods affecting Europe. The task of this study was to perform analysis of ecosystems using MODIS products. Due to the large amount of data work was created using GIS tools for ease of reference in the data. The paper detailing the purpose and process of making it would be easier to interpret. Conclusions contribute to a better understandi...