scholarly journals Historical dynamics and trends in formation of «Losiny ostrov» National Park forests

2021 ◽  
Vol 25 (3) ◽  
pp. 5-13
Author(s):  
S.A. Korotkov ◽  
◽  
Yu.B. Glazunov ◽  
L.E. Barsukov ◽  
◽  
...  

In the district part of «Losynyi Ostrov» National Park the state of plantations bound for clear sanitary felling based on the results of an earlier forest pathological survey was studied. 58 plots with a total area of 98,8 hectares, located in the specially protected and recreational zones of the national park, were examined. «Losynyi Ostrov», which has a relatively small area, is located at the junction of the three forest-growing regions; on its territory there is a unique wetland complex of the Yauza river and its tributaries. This led to a wide variety of natural conditions. At the same time, the national park is surrounded by densely populated urbanized areas. Recommendations to create forest plantations in areas with decayed stands were made, being based on the analysis of the historical experience of creating artificial plantations in «Losynyi Ostrov», edaphic and hydrological conditions, as well as considering the designated purpose of forests within each functional zone. 8 variants of forest cultures are proposed for each functional zone. The main and alternative crop options at each site are considered. The substantiation of the species range and the stand composition of pure and mixed crops, which are determined taking into account the designated purpose of forests, the potential of the forest growing conditions of the site, the type of forest, the type of soils and their moisture content, are given. Taking into account the designated purpose of forests, perennial tree species that are resistant to adverse environmental factors and are capable of forming in the future highly productive, recreationally attractive and long-lived plantations, corresponding to the historically formed natural environment of the national park, are preferable. Pine, spruce, linden, oak and larch are suggested as the main species, accompanied with elm and ash. It is concluded that the density of planting crops of more than 2 thousand pieces/ha in the recreational zone is impractical, since such plantings will be more comfortable for recreation. In a specially protected area, the appropriate planting density is 3–4 thousand pieces/ha.

Author(s):  
Aelita Pinter

Cyclic fluctations in the popu]ation density of rnicrotine rodents have been known since antiquity. However, factors responsible for this phenomenon are not known. The objectives of this long term study are essentially threefold: 1. characterize those environmental variables that might affect Microtus montanus in different seasons of the year; 2. record the growth, maturation and reproductive activity of the voles under natural conditions; and 3. determine the maturational, as well as, the seasonal pelage changes of these rodents. The data resulting from the execution of the above objectives would be correlated in an attempt to determine the causes undedying the multiannual fluctuations in the population density of these microtine rodents in Grand Teton National Park.


Resources ◽  
2020 ◽  
Vol 9 (4) ◽  
pp. 35 ◽  
Author(s):  
Krzysztof Widawski ◽  
Piotr Oleśniewicz ◽  
Agnieszka Rozenkiewicz ◽  
Anna Zaręba ◽  
Soňa Jandová

The aim of the publication was to assess the geotourist attractiveness of protected areas in Poland among weekend tourists based on the example of Gorczański National Park. The park location near urbanized areas makes it an attractive field for research on weekend tourism development. The tourist potential of the park is presented, starting from geological aspects and geotourist values. Then, the tourist potential was analysed, with a focus on geotourist resources, which include tourist trails and didactic routes. The tourist traffic volume was also examined. On the basis of legal documents, such as nature conservation plans, threats related to tourism development in protected areas were presented as indicated by park managers. In accordance with the Act on Nature Conservation, the threats are divided into four groups: internal existing and potential threats and external existing and potential threats. The tourists’ opinion on the geotourist attractiveness of the park was investigated with surveys conducted during selected weekends significant in the context of tourist traffic volume. Thus, a profile of people visiting the park for short stays was obtained, as well as their assessment of the tourist resources of the area, with particular emphasis on geotourist values.


2018 ◽  
Vol 1 (2) ◽  
pp. 231-237
Author(s):  
Yayuk Yuliana ◽  
Slamet Indarjo

Pengembangan ekowisata merupakan salah satu upaya untuk menjaga kelestarian hutan sebagai sumberdaya alam hayati dan mensejahterakan masyarakat di sekitarnya.  Dusun Batu Katak merupakan salah satu dusun yang berada di daerah penyangga  Taman Nasional Gunung Leuser.  Sejak tahun 2013 masyarakat Dusun Batu Katak telah membuka Ekowisata Batu Katak.  Wisatawan  yang berkunjung ke Ekowisata Batu Katak terus mengalami peningkatan. Penelitian yang dilakukan bertujuan untuk mengetahui faktor-faktor dalam pengembangan Ekowisata Batu Katak.  Metode pengumpulan data dengan melakukan studi literatur, observasi lapangan, wawancara dengan masyarakat dan stakeholder.  Analisis data dengan menggunakan analisis SWOT untuk merumuskan alternatif-alternatif strategi.  Hasil penyusunan alternatif-alternatif strategi diketahui terdapat 11 alternatif strategi.  Perencanaan  Ekowisata masih tetap mempertahankan kondisi alami dengan penataan ruang,  sirkulasi ekowisata yang tetap menjamin kenyamanan pengunjung dan penduduk. Ecotourism development is one of the efforts to preserve the forest as a natural resource and prosper the surrounding community. Batu Katak Village is one of the buffer zone of Gunung Leuser National Park. Since 2013 the Batu Katak community has opened the Batu Katak Ecotourism. Tourists visiting the Batu Katak Ecotourism continue to increase recently. The research was aimed to determine the factors in the development of Ecotourism in Batu Katak. Data was done by collecting the literature studies, field observations, interviews with the community and stakeholders. Data was analyzed using SWOT to formulate alternative strategies. The results of the preparation of alternative strategies had 11 alternative strategies. Ecotourism planning still maintained the natural conditions with spatial planning, ecotourism circulation which still guarantees the comfort of visitors and residents.


2021 ◽  
Vol 885 (1) ◽  
pp. 012051
Author(s):  
D G Budaeva ◽  
V D Sharaldaeva ◽  
L B-Zh Maksanova

Abstract As the global ecosystem protection agenda continuous to unfold, the topic of functional zoning of protected areas’ remains the subject of intensive discussions. The paper discusses the essence, specific features, key factors and actions taken to improve the functional zoning of national parks in Russia. On the example of the national park “Tunkinsky” it is shown how the functional zoning has changed since its creation and what factors influenced this process. The paper presents analysis of natural, historical, cultural, socio-economic, tourist-recreational and organizational conditions for functional zone allocation in the Tunkinsky National Park, as well as changes in the composition, naming, and area of the functional zones in the national park. Using the data from geolocation services, such as photos with a given geolocation posted by tourists in social networks, and GPS tracks of tourist routes, the authors prove the validity of changes in the functional zoning of the National Park, with an increase in the recreational zone, providing an optimal combination of nature conservation, tourist and recreational and economic functions was proved.


2007 ◽  
Vol 19 (4) ◽  
pp. 245-255 ◽  
Author(s):  
V.H.L. Rodrigo

High land productivity is a must for any commercial cultivation including Hevea brasiliensis (rubber). Also, the high demand for natural rubber has placed great pressure on expanding rubber cultivation to new and non-traditional areas. Understanding the ecophysiological principles behind the measures of productivity improvements is vital for wide application of these measures and to assess their sustainability. This review discusses the ecophysiological principles and tools used, along with the measures taken, to address productivity needs in terms of: genotype selection, determination of optimum planting density, and establishment of intercropping systems. Breeding for high yields and selection of suitable genotypes for different growing conditions are a top priority throughout the research history of rubber, however, early selection tools are necessary to reduce the time required for this process. As for any crop, photosynthesis drives the productivity of the rubber crop and, therefore, factors that govern and/or parameters that indicate the efficiency of photosynthetic productivity under field conditions could be used as tools in the selection of Hevea genotypes. Particularly for the early selection of genotypes in breeding programmes, mature crop characteristics which determine crop photosynthesis and productivity, should be linked to juvenile plant characteristics. The spatial and temporal efficiency by which plants acquire growth resources determines the overall productivity of the rubber crop, hence the optimum planting density and suitable crop combinations in intercropping systems. Changes in crop microclimate influence the efficiency of resource capture and thereby can be important for determining planting density and intercrops. Research needs regarding all the above aspects are also discussed.


1996 ◽  
Vol 76 (4) ◽  
pp. 727-734 ◽  
Author(s):  
Pirjo Mäkelä ◽  
Leena Väärälä ◽  
Pirjo Peltonen-Sainio

Development of a dwarf oat (Avena sativa L.) for northern growing conditions may further improve many important agronomic features of the oat crop including lodging resistance, yield stability, yield potential, grain-straw ratio, and fertile tillering. Our objective in this study was to assess the performance of a Minnesota-adapted dwarf line at high latitudes, through measurement of several traits that characterize duration of pre- and post-anthesis growth and plant stand structure, with special reference to tiller growth and tiller productivity. Response of the dwarf line to seeding rate (250, 500, and 750 viable seeds m−2) and nitrogen fertilizer application rates (80, 120, and 160 kg N ha−1) was compared with that of a semi-dwarf line, a conventional height cultivar, and a landrace cultivar, all of which are adapted to long-day conditions. The experiments were conducted in Finland (60°13′N) in 1993 and 1994. The dwarf line produced less grain (≤ 30%) than the other lines but out-yielded the lodging-sensitive landrace in 1994 at a high seeding rate and high rate of nitrogen fertilizer application. As for the semi-dwarf line and conventional height line, the dwarf line produced the highest grain yield at 500 seeds m−2 which is the standard planting density for oat in Finland. The particularly short duration of the generative phase and associated low number of grains per main shoot panicle are likely to be principal contributors to low mean panicle-filling rate, panicle weight, and grain yield of the dwarf line. However it was better able to tiller and produce head-bearing tillers than the other lines. This increased number of tillers was, however, unable to compensate for yield reduction resulting from low yield potential of the main shoot. Key words:Avena sativa L., oat (dwarf), grain yield, landrace, partitioning, straw length, yield components


Molecules ◽  
2021 ◽  
Vol 26 (13) ◽  
pp. 3845
Author(s):  
Assunta Esposito ◽  
Pietro Filippo De Luca ◽  
Vittoria Graziani ◽  
Brigida D’Abrosca ◽  
Antonio Fiorentino ◽  
...  

Olea europaea germplasm is constituted by a huge number of cultivars, each one characterized by specific features. In this context, endemic cultivars evolved for a very long period in a precise local area, developing very specific traits. These characteristics include the production and accumulation of phytochemicals, many of which are also responsible for the nutraceutical value of the drupes and of the oils therefrom. With the aim of obtaining information on the phytochemical profile of drupes of autochthonous cultivars of Cilento, Vallo di Diano and Alburni National Park, a metabolomics-based study was carried out on 19 selected cultivars. Multivariate data analysis of 1H-NMR data and 2D NMR analyses allowed the rapid identification of metabolites that were qualitatively and/or quantitatively varying among the cultivars. This study allowed to identify the cultivars Racioppella, Guglia, Pizzulella, Oliva amara, and Racioppa as the richest in health-promoting phenolic compounds. Furthermore, it showed a significant variability among the different cultivars, suggesting the possibility of using metabolic fingerprinting approaches for cultivar differentiation, once that further studies aimed at assessing the influence of growing conditions and environmental factors on the chemical profiles of single cultivars are carried out.


Author(s):  
Daniel Tinker ◽  
Rick Arcano

Allometric equations for estimating above­ and belowground biomass of lodgepole pine have been developed in Alberta, Canada, southeastern British Columbia, southeastern WY, and in Washington and Oregon (Johnstone 1971; Comeau and Kimmins 1989; Pearson et al. 1984; Gholz et al. 1979, respectively). More recently, allometric equations for young lodgepole pine saplings have also been developed in Yellowstone National Park (YNP) for aboveground biomass by Turner et al. (2004), and for belowground biomass by Litton et al. (2003). However, because of variability in latitude, growing conditions, substrate and climate, existing equations that predict biomass for mature lodgepole pine trees are not appropriate for use in the Greater Yellowstone Ecosystem (GYE), and new allometric equations specific for the GYE are needed. In this study, we will develop new allometric equations for predicting above- and belowground biomass in mature lodgepole pine forests of the GYE.


Ekosistemy ◽  
2021 ◽  
pp. 100-110
Author(s):  
A. A. Erst

The ability of seeds to maintain viability for a long time without germination is one of the most important adaptive properties of plants. The article analyzes the dormancy types of seeds of the Ranunculacea family and describes the key factors affecting seed germination and embryo development (warm and cold stratification, exposure to gibberellic acid) under artificially created conditions. It is noted that five levels of seed morphophysiological dormancy are described for the representatives of this family: non-deep simple, deep simple, deep simple epicotyl, intermediate complex and deep complex, which are mainly associated with adaptation to survival in difficult climatic conditions. In the review, various types of dormancy are considered in terms of their adaptive significance for representatives of the Ranunculacea family. To overcome each type of dormancy, a set of optimal conditions is necessary, which correlates with the growing conditions of species or individual populations in natural conditions. Therefore, the development of techniques for overcoming the seeds dormancy under artificial conditions is closely related with the study of the ecology of a particular species and the natural conditions of growth. The analysis of literature data revealed a significant problem: 40 % of the analyzed sources did not indicate the type of dormancy of seeds of the representatives of the Ranunculaceae family and, probably, the list of morphophysiological dormancy levels will be supplemented in the course of further studies.


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