Researches on the implementation of the forest cadastre using the GNSS technology and the remote sensing

Abstract

In Romania, about 27% of the land area is the forest fund. Sustainable development of forest involves their inventory and permanent updating in order to achieve a precise cadastral record. The land that are part of the forest cadastre are mainly represented by wooded land. The work consists in identifying and delimiting the cadastral area of a forest plot using modern ways of locating and tracking changes in time. The research aims to determine the modern aspects regarding cadastre and forest management issues, as well as how to create a database of the type of Geographic Information Systems, necessary in the context of the development of forest resources. In order to achieve the proposed objective, modern technologies for field measurements were used, such as high-precision Trimble GNSS systems, capable of providing a high degree of precision and productivity. Thanks to the built-in technology, GPS receivers, receives signals from all existing satellite constellations, ensuring a high quality of the measurements made. The studied area was also analyzed using satellite imagery which allowed the delimitation of forest boundaries through the digitization process. The use of very high resolution satellite imagery ensures high digitization accuracy, taking place in a shorter time than the terrestrial measurement method. Inventory of forests also involve the registration of plots in the Land Book. Through the ETERRA 3 application, the areas entered in the integrated national cadastre and land register can be viewed, interrogated and updated at all times. Since clearance is a major current problem, the most accurate and efficient cadastral survey and record keeping of forest enables sustainable forestry development in order to ensure a good quality of life.