This paper points out some defects of the current forest register and proposes a concept of next-generation forest register from the view point of GIS application to forest management. Since the fundamental purpose of the GIS is to conduct spatial analysis of multiple thematic maps, one of the basic requirements for the next-generation forest register is the management of forest information on a thematic map basis by using the spatial analysis function of the forest GIS. The main proposals are as follows.

The aim of this thesis is to evaluate the influence of edge effect on vegetation succession in black alder forests. 30 permanent study plots with size of 20×50 m were established with strips at several distances from the edge towards the center of the stand. Stands in study plots fell into three categories – with adjacent clearcut to S or SW created up to 10, 20-40 or more than 41 year ago. In all study plots living trees and dead wood was measured and vegetation was described by layers and the presence of rare epiphytic lichens was recorded.

For the review at hand, Clarivate Analytic's web of science search platform was searched for the keyword combination forest+plantation. The search found 944 articles with the mentioned keywords in their topic that were published between 2010 and 2017. The top 3 subtopics identified were soil, carbon and water in order of abundance. The overview over current research in each of these subtopics to plantation forests naturally show strong overlaps with biodiversity as well as ecological aspects of plantation forests.

The tree species composition of silver fir and beech forests has changed in space and time due to a number of direct and indirect natural and anthropogenic causal factors. Forming silvicultural guidelines, therefore, requires a sufficient understanding of the ecological, historical, economic and general environmental factors that influence silver fir-beech forests.

In this study, land use changes between 1986-2001 in Bartın-Ulus-Asagıdere watershed area was determined. In order to determine the land use percentages in 1986, Forest Management plan has been taken into consideration. Land use data belonging to 2001 has been determined by making use of the observations in the study area and data obtained from Forest Management plan of the year 2001. Arcview 3.2 software programme were used to analyze, examine and evaluate the data.

In order to develop the original long-term cutting age management standard of Sugi (Cryptomeria japonica) plantaions in Nagasaki prefecture, site index curves and taper tables of Sugi plantations were created. 1) Site idex curves were revised up after 40-50 years on stand age, and rate of height growth was not decreased remarkably. 2) On the average relative stem curve, the determination coefficient of polynomial expression was 0.9799. 3) The new taper tables could be applied to trees whose height from 15 to 31 m and DBH from 15 to 50 cm.

Vegetation mapping provides basic information for forest management and planning. In remote sensing research, the process of creating an accurate vegetation map is an important subject. Recently, there has been growing research interest in the object-oriented image classification techniques. The object-oriented image classification consists of multi-dimensional features including object features and thus requires multi-dimensional image classification approaches.

The District Forestry of the Duchy of Lauenburg (Schleswig-Holstein) changed silvicultural system in beech forests from 'shelterwood with delayed clearance' to 'group selection felling' due to economic, political and nature conservation reasons. The comparison of both systems showed advantages of group selection system regarding growth of valuable large diameter trees and higher overall income of