Zeszyt: 2018, vol. 15 / II / 1
Purpose of this study was to examine plant growth, yield, and fruit quality responses of tomato cultivar "Delgado F1" grown in different soilless culture substrates, such as perlite, rock wool, and coconut fiber, under greenhouse conditions. Horizontal bag culture was used as a growing system. The yield, plant biomass, leaf, height, width, fruit taste, aroma, acidity, water-soluble solids content (TSS) and lycopene content were measured. According to the results, the best fruit quality was determined for the coconut fiber media, while the highest total yield was obtained for the perlite media. ...
State Forests make various road investments in cooperation with local self-governments. Jointly modernized roads facilitate local transport for both parties. The prerequisite is proper selection of technologies and project parameters for the modernized roads. The paper aimed to analyze the minimum horizontal curve radii for various elements of roads (on exits, road junctions and vehicle maneuvering areas) depending on the vehicle combinations for timber transport. The scope of works comprised:• analysis of technical conditions for public roads;• analysis of kinematic relationships for vehicle combinations for timber transport;• determining the types of vehicle combinations for timber transport;• empirical determination of the turning abilities of timber haulage vehicle combinations and fire engines.Potential vehicle combinations used for timber transport were determined on the basis of data collected from the customers. Tests of turning abilities of vehicle combinations used for long and short timber transport and for forest fire fighting used by the State Fire Service units were conducted on a maneuvering area, at the curves with radius R = 11.0 m; 13 and 15 m and steering angle α = 90o.A combination of a truck with a trailer or steered cart revealed the best turning parameters. It was demonstrated that the rounding radius R = 11.0 m ...
The number and groups of mites (Acari) and species composition of oribatid mites (Oribatida) were analysed in three different substrates used for the restoration of degraded soils: (1) pine forest litter, (2) apple orchard litter, and (3) pine chips. The study was conducted in the years 2011-2012, on microplots of the area of 1m2, established in a belt of trees of a nursery in Białe Błota (Bydgoszcz Forest District). Average biannual mite density per 50 cm3 of the investigated substrates ranged from 14.6 to 54.43 individuals. The highest numbers of mites were found in shredded forest litter and the lowest in pine chips. The most abundant mites in the studied material were oribatid mites, accounting for 57.3 % of these arthropods. The highest number of oribatid mites was found in the forest litter (28), and the lowest (20) in pine chips. The number of species in both types of litter was similar in the first and second year of the study, but it rose three times in the pine chips substrate over the study period. Oribatid species in the litter substrates were dominated by the eurytopic Tectocepheus velatus, and the most abundant species in the pine chips substrate was Oribatula ...
Spatial planning in Poland undergoes constant changes due to the activity of the legislative body. These changes to a varying extent affect the activity of local authorities of rural gminas in the scope of spatial planning. The diversity in rural gminas is especially noticed in the application of land-use plans, and consequently also the planning permissions. Similarly, this diversity concerns changing the status of farmland from agricultural to residential and deforestation of agricultural and forest land. These factors are the elements forming the level of spatial planning culture that results from the regulations forming the spatial planning system. The equivalent element that forms the spatial planning culture is use of tools available by law, taking into consideration their gradation due to their complexity. These assumptions allowed for using the Central Statistical Office's resources to form indexes related to the area of spatial planning. These indexes became the component parts involved in the construction of Hellwig's synthetic measures of development. By using synthetic measures, it was possible to form the classification of rural gminas in the central region of Poland due to their level of spatial planning culture.The obtained results allowed for the evaluation of the level of spatial planning culture ...
Due to development of the renewable energy sources, the powering of fuel cells (FCs) with bio-fuels is very important. The one of this fuel is methyl alcohol. The use of fuel cells on a large scale is mainly limited by the high cost of catalysts - mainly platinum. Elimination of Pt as catalyst would allow for wider commercial application of FCs. The paper presents a study of methyl alcohol electrooxidation on electrode with Ni-Co alloy catalyst. Researches were done by the method of polarizing curves of electrooxidation of methanol in glass vessel. Conducted measurements show that there is a possibility of electrooxidation of methanol with Ni-Co catalyst.In any case, the process of electrooxidation of methanol occurs. A maximum current density was equal 50 mA/cm2. So, the work shows possibility to use Ni-Co alloys as catalysts for fuel electrode to methyl alcohol electrooxidation. ...
The study presents relations that occur between natural environmental features. They refer to the situation when one of the factors (in this case, lithology, determining attractiveness of the environment as a source of construction aggregates) begins to decide about spatial directions of the area development, as well as the development strategy of a given spatial unit. As a research site, the commune of Lipnica (Bytowski district) was selected, a part of which is located on a outwash plain, rich in sand and gravel deposits. Exploitation of gravel and sand that has been conducted there for over thirty years (bringing for years over 20% of the commune's income) results in significant unfavourable changes in the environment. Transformations of the landform, the lithology of sediment build-ups, water and soil conditions, thus causing the reduction of attractiveness for both agriculture and forestry as well as for potential tourist use, including the development of agritourism. In this situation, the promotion of the nature and beautiful landscape of the commune and the development of agritourism, as assumed in the "Strategy for the development of the commune of Lipnica for the years 2012-2020" are becoming problematic. Some of the aggregate mines are located near lakes ...
The aim of the article is to present regularities regarding the size, shape and topological characteristics of existing (passed) local spatial development plans in Poland (Polish communes). The source material for the research was planning documents, drawings of which were authorized by Geo-System and made available through WMS/WFS network services. As a result, it was possible to obtain information on the course of boundaries in the field, and thus the analysis of regularity, structure characteristics, etc. in terms of surface, shape and topological relations. Total of 15,390 local plans were analyzed, i.e. 31.2% of their total number in Poland. The article is the first in Poland analysis of the structure (area, boundaries, shape, etc.) based on a large, many thousandth attempt of local documents. The conclusions from the research show that the method of selecting areas to cover plans and defining their boundaries on the ground do not contribute to the improvement of spatial order and that the spatial extent of impact of these documents is not much larger than in the case of location decisions (decision on building conditions and land development). ...
The aim of the paper was the comparison of sour cherry-tree water requirements in the regions of Bydgoszcz and Wrocław in 1976-2015. The sour cherry-tree water requirements were determined for each year on the basis of air temperature in the period April - August for light soils, medium soils and heavy soils. The sour cherry-tree water requirements in the period April - August in the region of Wrocław were higher than those in the Bydgoszcz region. The sour cherry-tree water requirements in the Bydgoszcz region amounted 253 mm on the heavy soils, 316 mm on the medium soils and 379 mm on the light soils. The sour cherry-tree water requirements in the Wrocław region amounted 261 mm, 326 mm and 391 mm, respectively. From among five months, July was characterized by the highest water requirements. The water requirements in July in the Bydgoszcz region amounted 65 mm on the heavy soils, 82 mm on the medium soils and 98 mm on the light soils. The water requirements in July in the Wrocław region were higher and amounted 67 mm, 84 mm and 101 mm, respectively. In the vegetation period (IV-VIII), the significant tendency to increase the water requirements of sour ...
The Puszcza Zielonka and the Wielkopolski National Park are a big forest complex near the Poznan city. Is taken as the reference meteorological data for the Puszcza Zielonka and the Wielkopolski National Park based on data from the Poznan gauge station. The climate in the Puszcza Zielonka and in the Wielkopolski National Park shows relatively high stationarity. Air temperature (T) for these forest areas, from 1848-2016, shows in vegetation seasons, the positive trend of 0.004 0C/year (Sen's slope) on the significance level α = 0.05. While precipitation (P) and Sielianinov's hydrothermal coefficient (HTC) do not exhibit statistically significant changes. Fourier analysis of periodicity of air temperature indicates the dominant cycles: 84.5-; 56.3-; 15.4-; 3.5- and 3.3-years. An analogous analysis indicate the periodicity of precipitation: 7.0-; 4.0-; 3.6-; 3.3- and 2.8-years. Very similar, periodicity dominant was obtained for Sielianinov's hydrothermal coefficient ie.: 7.0-; 3.9-; 3.3-; 2.8- and 2.1-year. You can indicate that in Poznan, and therefore also in the Puszcza Zielonka and in the Wielkopolski National Park, in vegetation seasons, between 1848-2016 (almost 170 years) air temperature has increased by about 0.7 0C, while precipitation remained on unchanged level. Sielianinov's hydrothermal coefficient, which is a comprehensive assessment of the conditions falls ...
The paper is an attempt to determine the suitability of unmanned aerial vehicles (UAV) for geomorphological studies. The research was carried out in the Tatra National Park (green trail from Myślenickie Turnie to Kasprowy Wierch). Morphogenetic processes occur with high intensity in this area and give rise to numerous erosive form. A multirotor equipped with a non-metric visible light camera was used for measurements. The acquired data was used to generate a high resolution orthophotomap and a digital surface model (DSM). As part of the in-field data capture, geomorphological mapping of the research area was carried out as well. On this basis, it was possible to assess the suitability of the generated DSM for the geomorphological research. Moreover, the correlation between the DSM and the terrestrial geomorphological mapping is evaluated. In virtue of obtained data, effects and the intensity of tourist trails erosion were assessed in this part of the Tatra Mountains. The analysis involved the orthophotomap and the DSM (current data) as well as archival data from aerial laser scanning (ALS) conducted in 2012. Interpretation of above-mentioned results allowed to conclude that the data originating from UAV is very helpful in geomorphological studies. It is possible to determine the ...
The paper presents simple equations for estimation of water needs of fruit trees for conditions of Poland. These formulas are derived on the base of numerical data provided by many authors. Water needs of fruit trees can be estimated on the base of air temperature according to data and methodology of Drupka, Kemmer and Schulz as well as Press. The method of estimation of fruit tree evapotranspiration with the use of crop coefficients for particular months of the vegetation period (acc. to Doorenbos and Pruitt and acc. to Treder) and reference crop (grass) evapotranspiration on the base of air temperature (acc. to: Treder, Hargreaves in modification of Droogers and Allen, Hargreaves in modification of Bogawski and Bednorz, Blaney-Criddle in modification of Żakowicz) are also presented. The presented formulas can be helpful in estimating the irrigation needs of orchards (and vineyards) in conditions of Poland. The presented formulas can be also useful in making decisions on the location of irrigation equipment and the possible application of irrigation in orchards (and vineyards) in Poland. ...
The objective of the work, carried out as part of research programme on current change of the regional climate, was to confirm the hypothesis about the increasing frequency and intensity of droughts occurring during the high water needs of corn, during the period of June and July, in the region of Pomorze and Kujawy in the years 1981-2010. Furthermore, the aim was to confirm a significant relationship between indicators characterizing meteorological and agricultural droughts. Material for the research was data from five meteorological measuring points located in the region. Statistical methods used in climatological studies were applied, particularly the method of trends. The average multi-annual totals (1981-2010) of rainfall in the period of high water needs of corn (June-July) in the region of the Pomorze and Kujawy were characterized by spatial variability amounts to 22.6%. The frequency of meteorological drought in June through July is 26.7-33.3%. In the analyzed period there were no significant changes in the frequency and intensity of these droughts with the passage of years. Rainfall shortages in corn production extend to maximum of -91 to -124 mm, depended on the locality. The shortages did not show any significant changes in the years of the study. ...
The aim of the undertaken research was an evaluation of the frequency of the dry and the wet months in the Opole Voivodeship in the months of May to September in1981-2010 years, in the view of the global warming. The dry and the wet months were characterized on the basis of hydrothermal index K, thermo-precipitation index A, standardized precipitation index SPI and the amount of the precipitation deficiencies and excesses of the late potato. The attempt of answering the question which of these indexes describe the moisture conditions of the vegetative season the best were undertaken.It was proved that the average frequency of months, in which the different level of draught's intensity was observed, was equal to 25% on the basis of the thermo-precipitation index A, 35% standardized precipitation index SPI, 36% hydrothermal index K, and 34% on the basis of the deficiencies precipitation amount. The average frequency of the wet months were counted to all four indexes and the values were: 23% on the basis of the thermo-precipitation index A, 23% standardized precipitation index SPI, 16% hydrothermal index K, and 29% on the basis of the deficiencies precipitation amount. The dependence between the four indexes and the yield of ...
The work assessed the quality of services in the field of collection of waste in the urban-rural commune of Wadowice. The research was carried out in 2013-2015. The form of a questionnaire survey was adopted as a research tool. The method used to measure the quality of SERVQUAL services (service quality) defines the discrepancy between the consumer's expectations and the perception of the product. The assumption of this method is to express the quality of services as the difference between the service expected by the client (expected quality) and the service received (purchased quality). The result of the analysis allowed for the assessment of the quality of services provided in the field of collection of waste in the studied commune and the selection of the preferred enterprise by the residents of the Wadowice commune in the aspect of waste collection. Residents of the Wadowice commune show higher expectations as regards the service of receiving municipal waste from their property. They attach great importance to the reliability of the company providing this service. ...
River monitoring for the status and species composition of ichthyofauna is one of the forms of open water fisheries management. Research conducted on 10 selected for maintenance works of small rivers was to determine the composition and density of native and invasive fish and estimating the European Fish Index (EFI +) to assess the ecological status of designated sites in these rivers located in the Vistula and Oder basin. A total of 1405 fish, belonging to 24 species, were captured. Native species predominated, however, 19% of the fish caught were invasive species. The most common species was roach (Rutilus rutilus), but the most numerous was the gudgeon (Gobio gobio). At the researched stations, the maximum value of the EFI+ amounted to 0.868. After division into classes according to the value of the EFI + index, the majority of investigated sites where fish were found (24 of 28 sites), the EFI + value was between 0.00 to 0.40. This relatively small value indicated a poor condition of fish habitats, which was confirmed by low classes of ecological status at individual sites. Only in the case of the 1st position in the Tywa river and the 3rd position in the Czarna-Cedron ...
The basic element of a well-organized municipal waste management system is selective waste collection. Separation of waste "at source" (eg in a household) facilitates further handling of waste, in particular transferring it to recycling and recovery. By 2020, a minimum of 50% of the municipal waste, such as paper, metal, plastic and glass, should be recycled or re-used. These wastes are collected selectively in households, offices, offices and service outlets.The aim of the article is to present the results of the analysis conducted during one year of the structure of selectively collected waste in the yellow bag dedicated for plastic waste, with particular emphasis on the share of impurities, that is all those types of waste that should not be thrown into this yellow bag. The research was carried out at MIKI Recykling Ent. from November 2016 to October 2017. Waste came from 3 rural communes. Analysis of the results of the conducted tests showed that the share of impurities in the stream of selectively collected plastics is on average 26.8%, while the most common impurities are: cardboard, "other plastics materials" and glass. About 30% of these impurities can be directed to recycling or recovery processes, while the remaining stream ...
The cost estimation is the basic tool for assessing resources. Correct estimation of costs in the field of hazardous waste management improves the decision-making process in various aspects of the service - including contracts for waste collection, developing waste management strategies and plans. The subject of the analysis were general costs from rural commune for the management of medical and veterinary waste in 2013-2017. Data were collected on: mass of hazardous and veterinary waste, costs related to their transport and management, and subsidies from the commune budget. The analyzed data came from the institutions producing, receiving and subjecting medical and veterinary waste to management (thermal utilization) and from the Public Information Bulletins. Analysis of the presented data also indicates an annual 9% increase in expenses incurred for the management of medical waste and veterinary waste. ...
Green alleys and tree-lined roads or streets have been the topic of debate for many years now and every accident caused by tree becomes an argument for the removal of adjacent trees. Social opinions are shaped by isolated cases of fatal accidents caused by toppling trees, publicized by the media in a way that amplifies the perceived scale of the threat. Efficient hazard prevention requires risk management plans as well as tree monitoring using an objective hazard assessment method. The aim of this study is create principles for developing tree-lined roads with importance of safety. Three models of roadside plantings were developed. They were compared with existing local (30) and main (5) roads where road accidents were reported. It was assessed which road features influence accidents related to hovering on a tree. Large trees near roads do not have to pose a threat to people and property. However, the distance between tree trunks and the edge of the road has a significant impact on safety. ...
Biogas production depends on: the type, quantity and quality of administered substrates. Consequence in the substrates supply has a positive effect on stability of the methane fermentation. The selection of the right kind of substrates is very important for the efficiency of biogas plants. The main aim of this thesis was to determine the efficiency of co-substrate used in agricultural biogas plant. Substrates used in biogas plant were: maize silage and pig slurry. The study has also determined the amount of electricity produced and the efficiency of fermenters. The analysis was conducted based on one month of biogas plant operation. The analysis proved that usage of additional substrate (pig slurry) has a positive effect on the yield of biogas. In the days when pig slurry was in use, biogas yield increased. The highest biogas yield per ton of co-substrate was equal to 210 (Nm3). The smallest biogas yield per ton of substrate was 178 (Nm3). ...
Sustainable development consists in integrating political, economic and social activities while maintaining natural balance and durability of basic natural processes in order to guarantee the possibility of satisfying the basic needs of individual communities or citizens of contemporary and future generations. The paper presents the research results on the impact of selected elements of technical infrastructure on the level of sustainable development of provinces. Both the level of sustainable development and the quality of infrastructure were defined in the form of synthetic indicators.Infrastructure was proved to be the factor affecting the sustainability of development; however, it did not have the same impact on all four domains of sustainable development. It was found that the infrastructure may have a negative effect on sustainable development in the natural (environmental) domain. ...
