scholarly journals ADVANTAGES OF REDUCING THE AVERAGE WOOD COLLECTION DISTANCE IN THE CASE OF FIVE FELLING AREAS FROM PRODUCTION UNIT III GALBENA, SUDRIGIU FOREST DISTRICT, BIHOR FOREST ADMINISTRATION

2021 ◽  
Vol 11 (2) ◽  
pp. 263-271
Author(s):  
Flavius Ieremia ◽  
Keyword(s):  
Production Unit ◽  
Average Wood ◽  
Forest District

BIODIVERSITY OF WOODEN SPECIES IN RANGER DISTRIC OF TÎRGU LĂPUȘ

2017 ◽  
Vol 31 (1) ◽  
pp. 51-56
Author(s):  
Carmen Micle ◽  
Mirela Coman ◽  
Keyword(s):  
Climate Change ◽  
River Basin ◽  
Wood Species ◽  
Time Frame ◽  
Production Unit ◽  
Constant Time ◽  
Forest Types ◽  
Way Of Life ◽  
The North ◽  
Average Wood

Ranger Distric of Tîrgu Lăpuş is a part of Maramureş Foresty Directorate within the National Foresty Directorate - Romsilva. The forest area of 11327,57 ha administrated by Tîrgu Lăpuş includes the state-owned forests located in the North of the country, the middle basin of the Lăpuş River, the Cavnic River Basin and the Someş River Basin. Out of the 6 production units, P. U. I-Valea Mare in terms of composition diversity, age and average wood / hectare volume of wood species since 1967 until now. In 1967 the area of Production Unit I Valea Mare was 4790.0 ha. Becouse of various modifications over the years, in 2009, the area was of 4148.6 ha. These changes are visible in terms of habitat, biodiversity and administration. The types of forest resorts and forest types, including the variety of treatments applied, have been studied in detail in order to perceive the way of life, growth and adaptation to current pedological conditions and climate change, but especially to quantify and explain the dynamics of the wood species in this area. In conclusion, in P. U. I Valea Mare is notable for the constancy of species (beech, hornbeam and spruce), the increase and / or decrease of the share of the others (oak, resinous) and the disappearance of a species (pine). There are also some species that are found throughout this constant time frame under the share of 5% (resinous).

Scientific-methodological approach to the substantiation of the rational seasonal scenario of using combine harvesters by large-scale agricultural producers

2020 ◽  
pp. 205-217
Author(s):  
V. Skibchyk ◽  
V. Dnes ◽  
R. Kudrynetskyi ◽  
O. Krypuch
Keyword(s):  
Large Scale ◽  
System Analysis ◽  
Methodological Approach ◽  
Production Unit ◽  
Agricultural Producers ◽  
New Approach ◽  
Rational Use ◽  
Road Map ◽  
Analysis And Synthesis ◽  
Combine Harvesters

Аnnotation Purpose. To increase the efficiency of technological processes of grain harvesting by large-scale agricultural producers due to the rational use of combine harvesters available on the farm. Methods. In the course of the research the methods of system analysis and synthesis, induction and deduction, system-factor and system-event approaches, graphic method were used. Results. Characteristic events that occur during the harvesting of grain crops, both within a single production unit and the entire agricultural producer are identified. A method for predicting time intervals of use and downtime of combine harvesters of production units has been developed. The roadmap of substantiation the rational seasonal scenario of the use of grain harvesters of large-scale agricultural producers is developed, which allows estimating the efficiency of each of the scenarios of multivariate placement of grain harvesters on fields taking into account influence of natural production and agrometeorological factors on the efficiency of technological cultures. Conclusions 1. Known scientific and methodological approaches to optimization of machine used in agriculture do not take into account the risks of losses of crops due to late harvesting, as well as seasonal natural and agrometeorological conditions of each production unit of the farmer, which requires a new approach to the rational use of rational seasonal combines of large agricultural producers. 2. The developed new approach to the substantiation of the rational seasonal scenario of the use of combined harvesters of large-scale agricultural producers allows taking into account the costs of harvesting of grain and the cost of the lost crop because of the lateness of harvesting at optimum variants of attraction of additional free combine harvesters. provides more profit. 3. The practical application of the developed road map will allow large-scale agricultural producers to use combine harvesters more efficiently and reduce harvesting costs. Keywords: combine harvesters, use, production divisions, risk, seasonal scenario, large-scale agricultural producers.

Diesel Biofuels - Preparation, Characterization and Testing

2008 ◽  
Vol 59 (11) ◽  
Author(s):  
Cristina Dusescu ◽  
Anca Borcea ◽  
Vasile Matei ◽  
Ion Popa ◽  
Irina Gabriela Radulescu
Keyword(s):  
Vegetable Oils ◽  
Sunflower Oil ◽  
Raw Materials ◽  
Chemical Properties ◽  
Soya Bean ◽  
Production Unit ◽  
Physical And Chemical Properties ◽  
Physical And Chemical ◽  
And Chemical Properties

The present paper studies biodiesel samples preparation by transesterification and compares their physical and chemical properties (biofuels prepared from different raw materials - vegetable oils: sunflower oil, crocus oil and soya bean oil) and the biodegradability degree, as well as the possibilities of the integration of such production unit in industrial diagram of auto fuels production.

Adequacy of Quality Assurance Programs for a Corn Meal Production Unit

2016 ◽  
Vol 6 (1) ◽  
pp. 27-32
Author(s):  
Eliane Maria Ravasi Stéfano Simionato ◽  
Jéssica Januário Cardoso ◽  
Mayara Cristina Gonçalves ◽  
Tânia Regina Kovalskia ◽  
Érica Regina Daiuto ◽  
...  
Keyword(s):  
Quality Assurance ◽  
Production Unit ◽  
Corn Meal

scholarly journals Occurrence of the Green Shield-Moss Buxbaumia viridis (Moug.) Brid. in the Bieszczady Mountains of Poland

Forests ◽  
2021 ◽  
Vol 12 (3) ◽  
pp. 374
Author(s):  
Piotr Brewczyński ◽  
Kamil Grałek ◽  
Piotr Bilański
Keyword(s):  
National Park ◽  
Large Scale ◽  
Conservation Status ◽  
Natura 2000 ◽  
Field Work ◽  
Managed Forests ◽  
Moss Species ◽  
Microhabitat Preferences ◽  
Natura 2000 Site ◽  
Forest District

The small-sized gametophytes and sporophytes of the green shield-moss Buxbaumia viridis (Moug.) Brid. make it difficult to study. However, in Europe, there has been increasing interest in this species in the past few years, mostly as a result of the implementation of the Natura 2000 network. In Poland, B. viridis has only been reported in isolated studies that have been limited in terms of area and the number of participating workers. One of the Polish regions where B. viridis was recently recorded is the Bieszczady Mountains, but there have been no large-scale surveys of that region to date. The objective of the current work was to describe the B. viridis population in the Bieszczady Mountains in terms of its spatial distribution and abundance, investigate its selected microhabitat preferences, and evaluate the conservation status of this moss species within the Natura 2000 site Bieszczady PLC180001. The studied region encompassed 93,490.44 ha, including 69,056.23 ha of managed forests and 24,434.21 ha of forests belonging to the Bieszczady National Park. A preliminary survey was conducted in the Cisna Forest District (forest area of 19,555.82 ha) on 15–17 November 2017, while the main survey was performed in selected forest subcompartments of four forest districts—Baligród, Komańcza, Lutowiska, and Stuposiany—as well as the Bieszczady National Park from 5 to 16 November 2018. The field work consisted of searching for B. viridis sporophytes and setae and recording selected population and locality characteristics. The study led to the discovery of 353 new B. viridis localities in 202 study areas, with 9197 diploid individuals (sporophytes or setae only) growing in 545 microhabitats. The number of B. viridis localities discovered in the Bieszczady Mountains during 17 days of survey in 2017 and 2018 was two times higher than the combined number of localities previously found in Poland over more than 150 years (159 localities). Additionally, the number of sporophytes and setae identified was two times greater than their overall number in previous records. In addition, this study provides information about selected microhabitat preferences and the conservation status of this moss in the Bieszczady Natura 2000 site.

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