Analysis of the condition of the Agila Dune is presented in this Article. The analysis is based on data collected during accurate geodetic measurements using LIDAR technology. The current state of the Agila Dune was compared to the data of the previous year's LIDAR points in order to ensure the reliability and value of the research. In the course of the study, eleven cross sections were compared by height differences with previous year‘s measurements. The condition of the Agila Dune was found to be the worst in three cross sections. First cross section‘s erosion measured at 13,98 meters, erosion in the fifth cross section – 9.90 meters, and erosion in the eighth cross section – 11.34 meters. The main reasons for the deterioration of the natural values of the Kursiu Nerija National Park are climate, wind, high visitor flows and the persistent failure to carry out comprehensive research. Therefore, in order to preserve these unique natural values, it is important to collect large-scale and high-precision data on the status of these values, to systematize, to analyse and take appropriate protective measures.

Land consolidation is an important stage for agriculture and rural development. During the land reform, parcels of irrational size and shape were formed, which became difficult to cultivate efficiently. In essence, land consolidation projects must primarily be developed in areas with large, viable farms, and land parcels forming land holdings are not compact, distant from each other and from centres. Land consolidation projects have been under development for many years, but it is appropriate to pay attention to the expediency of implemented projects. Land consolidation goals and procedures vary from country to country, as the development of this procedure in each country is determined by historical trends, culture, traditions and land consolidation legislation. Many of those who have analysed this topic emphasize the need for consolidation, but it is very important that landowners understand the importance of this process and make sure of its opportunities and benefits. Land consolidation must be designed so that the benefits of the project are higher than the results of the conversion works before the project. The purpose of this article is to compare land consolidation projects which were prepared in different areas of Lithuania. Two objects of the research in which land consolidation projects had been carried out and implemented in 2013 were selected, where the number of sites in units decreased: 41.8% in one project and 28% in the other. Changes in parcel configuration were also noticeable, when in one of the projects analysed even 92 per cent of land parcels have become regular − close to rectangular − shapes. The average size of land parcels in this project increased from 5.32 ha to 9.14 ha.

According to the official statistics the areas of abandoned agricultural land in Lithuania are gradually decreasing, but very slightly. The aim of this study is to research spatial determination and abandoned land classification in the territory of Vilnius District Municipality. Vilnius District Municipality was chosen for the research because it, although located near the capital of the country and has a high population density, it is still the district having the largest percent of abandoned land plots. A fast, cost-effective and sufficiently accurate method for determination of abandoned land plots would allow to constantly monitoring, to fix changes and foresee the abandoned land plots reduction possibilities. In the study there was used the multispectral RGB and NIR colour Sentinel-2 satellite images, the layer of the administrative boundary of Vilnius County and layer of abandoned agriculture land, which is available in Lithuanian Spatial Information Portal (www.geoportal.lt). The data was processed by Geographic Information System (GIS) techniques using classical classification Region Growing Algorithm. The research shows that NIR image classification result is more reliable than the result from RGB images.