Unstable weather conditions specific for the Republic of Moldova destabilize the agricultural products market. These and other features of modern agriculture make our society to face acute need for informatization, especially it concerns the agricultural producers (farmers) but also public authorities of all levels. The implementation of Agricultural Cadastre Information System, initiated successfully in our country, is a fundamental solution in this regard.

Writing topics actuality is based on the government proposed property tax increase of 2011 residential tax. Author of the article concludes that till now disproportionately spacious cadastral value range and its inadequacy towards resident income has restricted to establish a fair personal income and property tax proportionate to the objective of appropriate tax. Just now Latvia is experiencing huge increase in amounts of real estate tax debt and number of debtors.

Soil maps for fields are one of the basic materials for farm development planning and assessment of the land's cadastre value. In order to find out the level of land users' awareness of soil forms and the agrochemical composition of the soil, and the implementation of this in farming practices, a survey of land users was carried out. Simultaneously, information was gathered on crop alternation in farms, crop alternation projects, their prevalence, and interest in such projects. Information on field history was also gathered.

In order to ensure operation of the Cadastre, the Cadastre information system is being maintained and improved. Cadastre text and spatial data regarding cadastre objects, which are located in the territory of Latvia, are registered and maintained in the Cadastre information system. In order to specify the value of particular cadastre object, four models of cadastral assessment are developed. These models provide cadastral assessment of all cadastre objects registered in the Cadastre information system.

Cadastral map in modern market economy in different fields is marketable product. Summarized on it digital geospatial data, obtained in cadastral survey, can be widely used by many users. These data are captured using different methods of cadastral surveying therefore they have different accuracy. Land parcel boundaries are updated in compliance with data of higher accuracy. Wherewith, assessment and improvement of quality of cadastral map is very actually.

The article presents an overview and brief characteristics of the selected soil information systems in the Czech Republic. It suggests synchronisation of their development, particularly some convergence of the Land Evaluation Information System and Soil and Terrain Digital Database. In the pilot area of Litomerice district, it demonstrates the application of the SOTER methodology for the construction of middle- and detail-scale soil maps, using the data from the General survey of agricultural soils.

We introduce a simple method for estimating the changes of nitrate concentrations in surface waters regarding the land use modification. Stream and drainage water nitrate concentrations in prevailingly agricultural catchments of three different scales located in the Crystalline complex of the Czech massif, Czech Republic, were included in this study. Water quality samples were collected through the years 1992-2006 at monthly and bi-monthly intervals.

To justify the importance of the indicators affecting the cadastral value, surveys were carried out, by help of which opinions of different respondent groups were summarized. The interviewed respondent groups were real property specialists of municipalities and experts. The thematic blocks of the questions included in the questionnaires are designed with the aim to clarify the quality of the indicators of cadastral assessment models, as well as their significance.

Regulations require that real property cadastral assessment should be used internationally recognized real property evaluation methods - the method of comparison, cost method and income capitalization method. The study assessed content and nature of evaluation methods. The studied, which the evaluation methods today are likely to use in the cadastral assessment and which depends on the database of stored information. The main conclusion of the study is that the cadastral assessment using as many methods possible to obtain a more objective cadastral value.