Nowadays, linkage of landscape ecology with landscape aesthetics becomes very topical, especially when people move from rural areas to big towns and cities. Landscape ecological planning becomes more important in terms of sustainable environment. Landscape assessment and investigation needs a multidisciplinary approach. The aim of the study was to evaluate landscape ecological aesthetics in urban area. The selected city for study was Jelgava – city with a special characteristic landscape of Zemgale plains and wide green spaces in the city centre. Jelgava is one of the examples of complex urban system with ecological environment. This research presents landscape evaluation of Jelgava using ecological aesthetics assessment method. Territory of Jelgava was divided in groups of research areas: green spaces, residential areas and other territories. Qualitative and quantitative methods were used in the research. The methods applied in this research describe the present situation of the city. Landscape inventory, biotope structure analysis and evaluation of landscape ecological aesthetical qualities give a general overview of the problems and opportunities of the examined city. Research study was managed in autumn and winter 2011. The results show the need for sorting the cityscape and use of ecological principles in further urban planning. Green areas of Jelgava are ecological and aesthetical valuable but multi-storey residential areas have low quality of landscape ecological aesthetics.

The landscape in Latvia is managed and planned in different levels and regulations. The survey has been undertaken in Latvia with the aim to assess the landscape as regards the aesthetical quality assessment in Latvian watermills and small-scale hydroelectric power plant territories by means of public perception. Duration of research was from May 2011 till March 2012. The method used in this survey is the public questionnaire method. Public notions concerning researched landscapes territories in Latvia reveal that the landscapes in these territories are mainly assessed critically; however, in the assessment of visual information from pictures taken in particular territories the results are different, and the value of these territories is mainly assessed positively. The contribution of Latvian people’s knowledge regarding improvement in the landscapes situations in researched territories of Latvia has to be realized.

The article is devoted to the analysis of historical, cultural, and architectural importance of Miklouho-Maclay park, a monument of landscape art. It examines the archive data about the family of the famous traveler, ethnographer, anthropologist Mykola Mykolayovych Miklouho-Maclay who lived in Malyn (Zhitomir district Ukraine) at the end of XIX and the beginning of XX century, his contribution to the development of landscape art. It is shown that the park contains 57 species of arboreal-shrub plants including 34 species of trees, 22 shrubs, and one shrubbу liana. 23 of them (40%) are introduced species. The author offers the direction of parkland reconstruction and points out recommendations on territory zoning.

Since discovering that signals of random waves submit to the known laws of probability, this became widely used in engineering and energetics for probability distributions analysis of wave height. From an energetic point of view, it is necessary to know the average wave height in, for example, highly wavy (1% probability), medium wavy (25% probability) or non-wavy (95% probability) years. Whereas, maximum multi-year value of wave height characteristics is essential for engineering resistant wave energy converters that could withstand severe marine conditions. Average and maximum annual values of wave height data collected from Klaipėda coastal hydrometeorological station are used for this study. Probability distributions of average and maximum wave heights in the Lithuanian coast are analyzed in this paper. The best fitting is obtained using HYFRAN and EASY FIT software. Both, a test for independence (Wald- Wolfowitz) and stationarity test (Kendall) are carried out for every time series using HYFRAN software. Maximum like hood method is selected for distribution estimation. Fitting is determined using chi-square test and the best fitting is verified with comparison (BIC and AIC) criterion. Fitting for one of the most commonly used distributions in the analysis of wave climate – Rayleigh distribution – cannot be determined with HYFRAN software. For this purpose, EASY FIT software is used additionally. The fit of the distribution is evaluated via the chi-square test similarly. Calculated wave heights based on lognormal probability distribution that fits best according to HYFRAN software are similar to those calculated using Rayleigh probability distribution.

Sewage sludge is a specific bulky waste and its utilization is hampered by the presence of the environmentally dangerous contaminated substances in the composition presented mainly by heavy metals, pathogens and coagulants. At the same time sewage sludge may serve as a valuable biological raw material. Utilization of the sewage sludge is crucial environmental and economic challenge. Application of the pneumatic pulse method in the technology of dehydration and utilization of the sewage sludge may allow us to speed up the process of drying, reduce power consumption and capital investment, execute process of dehydration at lower temperatures and in less hazardous explosive conditions. Proposed solution is founded on the use of the compact equipment for dehydration and utilization, including pneumatic pulse drying method. For this purpose the pulser – an airflow feeder with required time intervals or pulses, was included in the technological process. In the process of the drying sewage sludge with the use of pneumatic pulse, there is no need to spend all the energy on evaporation of the water molecules and this fact significantly reduces power consumption. Preliminary calculations, taking into account laboratory data, showed that proposed technology of drying sewage sludge allows to reduce power consumption by 25% upon receipt of the dry sludge. The aim of the study is development of sewage sludge dehydration technology for further utilization of design solutions using the pulse method.

This article analyses the advantages of applicable measures of motivation, taking into consideration the internal environment of an organization as a whole and focuses on the impact of internal environmental factors upon the results of the organization. The paper is based on the survey results obtained by inquiring, municipal administration employees in Lithuanian districts in February-June 2010. The goal of the research was to propose and justify theoretical components for the motivation model of municipal administration employees. The major integrated groups of motivation measures that are the most influential to the factors of internal environment as the main results of research were identified. The authors focus on the positional adjustment of the combinations of motivation measures, in order to improve the motivation of municipal administration employees.

Farm financial distress can be determined by many factors. Farm failure can be the result of macroeconomic environment, unsuccessful farmer’s management decisions, and even natural forces. Different financial distress determinants may have different influence on a farm financial position. This study presents average financial ratios (leverage, return on assets, and return on equity) and single ratio of rental equivalent to gross margin according to farm size, land quality, economic size, farmer’s age and type of farming in Lithuania. The new approach to financial distress diagnosis requires classifying farms into financial positions. Considering average financial ratios and single ratio of rental equivalent to gross margin, farms were classified according to financial positions in order to estimate these methods’ suitability for financial distress diagnoses. Using study results, farmers can identify their position according to the average ratios. This study could be a guide for farmers making the financial management decisions.

Food consumption becomes an increasingly important topic considering global and local environmental problems as well as health issues and wellbeing of nations in general. Also in Latvia people are becoming more aware of importance of food and its direct and indirect impact on their everyday life. Therefore it is very important to evaluate sustainable aspects of food consumption and look for the barriers and drivers in order to form more sustainable consumption patterns which are based on information, knowledge and consciousness. The aim of the study is to investigate the perspective of sustainable food consumption in Latvia. The tasks of the study are: 1. to review present food consumption patterns from sustainability perspective; 2. to elucidate consumers’ understandings, attitudes and behaviour towards sustainable food consumption. The empirical research was based on the online survey with a sample of 82 women in the age group from 19-35. Descriptive statistics were used to analyze the results of the questionnaire and data obtained from Central Statistical Bureau of Latvia. The results of the study indicate the gap between positive attitudes towards sustainable food and stated purchasing behaviour. There is an obvious perspective of growth of sustainable food market if we increase the awareness of consumers regarding sustainable consumption issues.

Entrepreneurial activity in various regions of Latvia is one of the most actual topics for politicians at many levels. The aim of this paper is to characterize entrepreneurial activity in the Kurzeme Region in the context of municipalities analysing the accessible statistical data. The entrepreneurial activity in the Kurzeme Region is analyzed both in general and in the context of municipalities in this paper. Analyzing accessible statistical data, one can draw a conclusion that the entrepreneurial activity in the Kurzeme Region is not even. It testifies that the factors which influence entrepreneurial activity development in some areas are to be searched at the level of municipalities. In addition, the analysis of data specifies various correlations. For example, the smallest number of merchants per 1000 inhabitants in Kurzeme region is in relatively small border municipalities, but higher results are in large cities and local authorities who comprise larger cities or in municipalities which border with larger towns. It is similarly discovered that in Kurzeme region there is a smaller amount of self-employed persons in local authorities with a large number of merchants per 1000 inhabitants and vice versa. There are also exceptions, further research is necessary to justify such correlations.

Biogas can be produced from industrial by-products, household waste and raw materials of agricultural origin. Agricultural resources can be agricultural by-products, for example, manure as well as biomass of energy crops. The objective of the trial was to evaluate the methane outcome from the winter wheat (Triticum aestivum L.) silage depending on the variety and the growth stage during the harvest. The trial was carried out in State Stende Cereals Breeding Institute in the autumn of 2009. The biomass of three varieties of winter wheat, harvested at three stages of maturity - at the beginning of flowering (GS 60-62), early milk ripeness (GS 70-72), and early yellow ripeness (GS 80-82) - was ensiled in laboratory conditions. The silage was analysed 180 days after it had been ensiled. The biogas and methane outcome in laboratory conditions (in Germany) was determined for samples of silage made from winter wheat variety ‘Skalmeje’ at all harvesting times according to VDI 4630 method. The theoretically obtainable methane outcome was calculated for silage samples of all varieties by using the results of chemical composition analysis (crude protein, crude fibre, crude fat, N-free-extracts). The highest methane outcome from one ton of winter wheat silage was acquired by harvesting and ensiling the biomass during the flowering stage. However, evaluating the methane yield from one hectare, the best results were obtained by harvesting and ensiling the biomass at the early milk stage of ripeness and at the stage of early yellow ripeness.