scholarly journals Air pollution impact assessment and monitoring, its effects on the forest ecosystems in the territory of the Republic of Serbia in 2015

2015 ◽  
pp. 39-61
Author(s):  
Renata Gagić-Serdar ◽  
Tomislav Stefanović ◽  
Goran Češljar ◽  
Svetlana Bilibajkić ◽  
Radovan Nevenić ◽  
...  

In 2015 research observations of permanent monitoring of forests in the Republic of Serbia on permanent experimental plots were carried out in accordance with the Instructions of the International Cooperative Programme on Forest Condition Monitoring and data were collected for the necessary analyses. Experimental fields (FSP) are systematically arranged in 16x16 km or 4 x 4 km grid systems. Basic parameters evaluated in the plots were: presence of pests, phytopathological changes, as well as of other types and causes of forest damage. The aim of this paper was to correlate these factors that affect the vitality of forests and analyses of adverse influences affecting the forest ecosystems, the degree of defoliation and color changes (chlorosis on forest vegetation), and above all, the extent of damage to forests in Serbia in 2015.

2020 ◽  
pp. 81-92
Author(s):  
Renata Gagić-Serdar ◽  
Tomislav Stefanović ◽  
Ilija Đorđević ◽  
Goran Češljar ◽  
Miroslava Marković ◽  
...  

Trees condition on the sample plots of the ICP forests, Level I, is especially considered and monitored by the typically damaged and affected part of the tree on which it occurs. Due to the need to enter unique data for the measured parameters (visible damages), their codes are assigned for each damage. These are the results from Sample plots, Level I, based on the ICP methodology. The results are entered into a single database for all participating countries. Infested assimilation organs - leaves or needles are direct indicators of the condition of the trees. The most common damage to leaves is caused by miners, gnats, beetles, and insects that totally bite the leaves so parts of the leaves are completely missing (Lymantria dispar L.). The leaves are mined by Stigmellidae, Gracillariidae, Cynipidae forming galls; there are also damages from the early oak defoliators Geometridae and Tortricidae. Apart from defoliators, the most common are xylophagous insects (for example, bark beetles) as well as root pests. The fungi that most commonly occur on the leaves are oak powdery mildew (Erysiphe alphitoides) and Rhytisma acerinum (which attacks species of the genus Acer). Other damages that occur are verticillium wilt (diseases of the conducting vessels), beech bark disease, then rot of the appendix, trunk, and branches. The paper presents the observed damage and diseases on the experimental plots of the ICP forests, Level I, in Serbia, according to the parts of the tree where they were discovered.


Author(s):  
А. B. Biarslanov ◽  
Z. G. Zalibekov ◽  
Z. U. Gasanova ◽  
P. А. Abdurashidova ◽  
V. А. Zhelnovakova ◽  
...  

The paper is devoted to soil cover degradation in the northen part of the Republic of Dagestan. Soil degradation is affected by irrational using free flowing underground water of artesians. Intensive extraction of underground water for domestic drinking water supply and pastures watering leads to irreversible processes in the soil cover. The study of salt spreading processes in soils caused by technogenic pressure is mainly considered for humid zone, in arid zone such work was not carried out. In this regard, the aim of the study is to clarify the state of the salt balance of soils for possible technogenic halogenesis under the conditions of a long half-century, continuous impact of artesian sources. The analysis of the territorial spreading of salts is considered on the example of soils of the marine coast and the central part of the Terek-Kuma lowland, represented by varieties of meadow saline and light chestnut soils. Taking into account the conditions of mutual location, experimental plots were selected with reference to artesian sources in the marine coast and in the continental part. Experimental and control sections were laid at experimental plots. Soil samples and artesian water samples were tested for the content of light soluble salts using conventional methods. It was established that under conditions of self-flowing artesian sources the soil of the continental part is characterized by an increased salt content and is 0.26-0.48% according to the profile against the background of the salt content in the samples of control plots – 0.11-0.17%. Coastal soils are characterized by a higher degree of salinization, the influence of mineralized water sources has a desalinization impact. On the test plot the salt content is 0.31–0.51%, in the control plot – 1.22–4.29%.


2012 ◽  
Vol 50 (No. 11) ◽  
pp. 514-519 ◽  
Author(s):  
P. Fabiánek ◽  
V. Henžlík ◽  
K. Vančura

In 1986, the UN ECE established the International Cooperative Programme on Assessment and Monitoring of Air Pollution Effects on Forests (hereinafter ICP Forests) to respond on the growing concern about forest damage caused since the beginning of eighties by air pollution load. Pan-European grid of the (ICP Forests) monitoring plots represents one of the most important systems of forest ecosystems assessing and checking. The Czech Republic is unfortunately well known due to this problem and so the country joined ICP Forest Programme since the very beginning. The paper presents general information on Czech forest stand condition that gained through various methods in the past as well as in the frame of ICP Forests. The participation in the International Cooperative Programme on Assessment and Monitoring of Air Pollution Effects on Forests (ICP Forests) represents a contribution of the EU candidate country to the fulfillment of the Reg. (EEC) No. 3528/86. However it seems that effects and importance of air pollution are decreasing, a lot of new stress situations exists and there is a need for continuing the programme.


1999 ◽  
Vol 23 (3) ◽  
pp. 359-390 ◽  
Author(s):  
Paul M. Treitz ◽  
Philip J. Howarth

Remote sensing has demonstrated wide applicability in the area of estimating and mapping forest physical and structural features. Focus in recent years has been directed towards measuring the biophysical/physiological character of forest ecosystems in order to estimate and predict forest ecosystem health and sustainability. The following reviews the relationship between forest condition and reflectance; remote-sensing measurements (and derivatives) that provide biophysical/physiological information; and the potential of hyperspectral sensors in the measurement of these parameters.


Forests ◽  
2022 ◽  
Vol 13 (1) ◽  
pp. 51
Author(s):  
Branko Ursić ◽  
Dinko Vusić ◽  
Ivica Papa ◽  
Tomislav Poršinsky ◽  
Željko Zečić ◽  
...  

This research was conducted to determine the cause, intensity and location of damage (stem, butt end, root collar, root) and the extent of damage to standing trees during felling and processing by an harvester and timber extraction by a forwarder (cut-to-length system). The research was conducted in the central part of the Republic of Croatia in the Management Unit (MU) “Bjelovarska Bilogora” during the thinning of Subcompartment 14b, area of 18.28 ha, in the stand of hornbeam (Carpino betuli—Quercetum roboris fagetosum Rauš 1975), age 70, and of Subcompartment 14c, area of 9.07 ha, in a stand of common beech (Carici pilosae—Fagetum Oberdorfer 1957) aged 79 years. The thinning intensity was 12.13% in Subcompartment 14b and 13.72% in Subcompartment 14c. Field measurements were carried out on sample plots—the first time in 2017 to determine the intensity and characteristics of the damage to standing trees with regard to the cause of the damage (harvester or forwarder), and the second time in 2018 to determine the overall intensity and features of the damage to standing trees after finishing harvesting operations. For all trees remaining in the stand after the harvesting operations, the following were determined: tree species, diameter at breast height (DBH), the position of the tree in the stand depending on the forest traffic infrastructure, and—if damaged—cause of damage, type of damage, the position of damage on the tree, and dimensions of damage. The intensity of the damage was expressed by the ratio of damaged and undamaged trees, with a detailed analysis of bark damage (squeezed-bark damage and peeled-bark injuries). The results of the research indicate the highest prevalence of peeled-bark injuries. In relation to the total number of standing trees, trees with peeled-bark injuries were more represented in Subcompartment 14c (39%) than in Subcompartment 14b (33%). In Subcompartment 14b, the harvester and the forwarder damaged an equal number of trees, while in Subcompartment 14c, the harvester damaged 59% of the damaged trees. In both subcompartments, an average of 83% of (peeled bark) injuries were up to 1.3 m above the ground. In both subcompartments, the most common (67%) were injuries up to 100 cm2 in size, for which many authors claim the tree can heal by itself. Given the increasing use of harvester-forwarder systems in deciduous stands and research results that indicate possible damage to standing trees, it is necessary to pay attention to all phases of planning and execution of timber harvesting operations, thus minimising negative effects.


2019 ◽  
Vol 143 (1-2) ◽  
pp. 59-71
Author(s):  
Igor Anić

This paper explores the influence of higher forestry education and forestry science at the Faculty of Forestry of the University of Zagreb on the formation and preservation of forest wealth in the Republic of Croatia during the past 120 years as the basic, authentic, self-renewable, biologically diverse and distinctly natural element. In order to do so, we shall provide a survey of some significant achievements of the faculty and its distinguished professors by citing examples of important textbooks and scientific papers. In the year 2018, the Faculty of Forestry in Zagreb marked the 120th anniversary of its establishment. It was on October 20th, 1898, that the Academy of Forestry was founded within the University of Zagreb as the first higher forestry institution in Croatia and in the south-east of Europe. The continuity of higher forestry education at the University of Zagreb has been retained to date through the periods of activity of the Academy of Forestry (1898 - 1919), the Faculty of Agriculture and Forestry (1919-1946), the Agricultural-Forestry Faculty (1946 - 1960) and the Faculty of Forestry (1960 - to date). Three characteristic periods can be singled out in the development of forestry education and science at the Faculty of Forestry in Zagreb in the course of 120 years: the first half of the 20th century, the second half of the 20th century and the first half of the 21st century. The first half of the 20th century witnessed a surge in the Croatian forestry, which can primarily be attributed to the development of higher forestry education and science at the Academy of Forestry and the Faculty of Agriculture and Forestry of the University of Zagreb. Among the most important contributions of university forestry education and science in Croatia are the establishment of the Zagreb School of Silviculture and the beginnings of organized and systematic scientific research in forestry. The second half of the 20th century is characterized by the blossoming of higher forestry education and science in Croatia, which had a direct impact on the condition of forests and the development of practical forestry. During this period, the Croatian forestry, science and practice became an outstanding example of mutual cooperation and powerful development, which brought about an improvement in the condition of forests in Croatia as a whole. The forestry practice firmly adhered to the principles of the Zagreb School of Silviculture, an orientation towards natural regeneration, natural stand structure, and natural, diverse and stable forests. This trend has continued in the 21st century. The new age has given rise to vast changes and challenges in higher forestry education and science. The crisis of forestry, which has gradually been evolving over the past fifteen years, has had its repercussions on the basic activity of the Faculty: higher education and science. Today, the Faculty of Forestry is confronted with two serious challenges: lesser interest of young people in studying and a reduced intensity and scope of scientific research in forest ecosystems. There are no objective reasons for either of the above, however. Forests are the most widespread and the most important natural wealth in the continental part of the Republic of Croatia. There are currently a large number of job openings in forestry and urban forestry, as well as in nature and environment protection, and this trend will continue to rise in the future. The Croatian forest ecosystems are facing growing numbers of challenges and problems. On the other hand, there are fewer and fewer workers in forestry. In view of this, there is no reason for crisis in one of the most natural and oldest studies at the University of Zagreb. On the contrary, forestry experts have splendid prospects in today’s ecological, economic and social conditions. The task of the Faculty is to adjust itself and its basic products, experts in the management of forest ecosystems of the Republic of Croatia, to new challenges. Forestry practice and forestry science must work together, just as they have done throughout the long forestry history. Only be doing so will their development be ensured in accordance with the definition: forestry is a science, profession and art of managing and preserving forest ecosystems for the permanent benefit of man, society, environment and economy.


2019 ◽  
Vol 943 (1) ◽  
pp. 146-155
Author(s):  
A.A. Pakina ◽  
N.I. Tulskaya ◽  
A.A. Karnaushenko

The world’s economic welfare is supported by its natural resources. Mapping ecosystem services (ES) is essential to understand how ecosystems contribute to human wellbeing and to support policies, which have an impact on nature. Mapping (ES) is an important tool in their assessment. ES mapping and assessment include ecosystem properties and conditions, ES potential, supply, flow and demand. Approaches to the assessment and mapping the role of Tatarstan’s natural and transformed ecosystems in the carbon dioxide’s balance are presented. The contribution of forest ecosystems to the species’ balance composition and age of forests are estimated. The crop photosynthesis and soils’ respiration are used for agricultural lands. Emissions from industrial production are considered. Fuel combustion and other processes contribute to the balance of carbon dioxide as well. Maps compiled for these purposes prove to be an important tool to assess carbon capacity.


1998 ◽  
Vol 74 (6) ◽  
pp. 855-860 ◽  
Author(s):  
Lyle Friesen

Development is now a major cause of landscape-scale variation in ecosystems and it is imperative to know more precisely the nature of its impacts if we wish to preserve affected species and their habitats. Recent studies suggest that human impacts in suburban forests are "edge effects" analogous to microclimatic and vegetational edge zone phenomena although they exceed natural edge effects both in severity and spatial extent of damage. Studies of forest bird communities in California and Ontario indicate that some species are urban avoiders that decline or disappear as development levels increase. Research is urgently needed to better understand the mechanisms by which development undermines natural areas in order to prevent or minimize its adverse impacts.


2019 ◽  
Vol 5 (2) ◽  
pp. 8-15
Author(s):  
Arthur Askeyev ◽  
Oleg Askeyev ◽  
Igor Askeyev

Abstract The article presents the unique results of a study of the spatial distribution of owls in the territory of the Republic of Tatarstan by season of the year on long-term data. Ravkin’s transect method was used to census fixed randomly selected plots spread over a large geographic area. Abundance a lot of species of owls strong changed of different seasons of the year. In general, owls were indifferent to latitudinal, longitudinal, and altitude gradients in the territory of the Republic of Tatarstan, especially in winter and autumn periods. Probability of occurrences of boreal and pygmy owls can be used as indicators of the biological diversity of forest ecosystems in winter period.


2012 ◽  
Vol 58 (No. 10) ◽  
pp. 465-471 ◽  
Author(s):  
I. Varnagirytė-Kabašinskienė

 This paper contains the information about some principles of sustainable forestry which are still relevant in the world. In 2002, Lithuania started research on the nutrient balance in forest ecosystems when the forest fuel is harvested. The consequences of the intensive forest fuel harvesting on the forest ecosystem were analysed. At the same time, the experiment on the compensatory wood ash fertilizing was established in Lithuania. After the initial calculations, having the experimental data, the Ministry of Environment of the Republic of Lithuania has initiated the preparation of the Recommendations for compensating wood ash fertilization in the forests. This review briefly systematizes and analyses the main results of the related research and some ideas for the future studies are also presented.    


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