ES 
  
COMMISSION ViI M2 
Appendix to the INT. APCHIVES Of 
PHOTOGRAMMLTRY, Vol. Xil:4, 1956 
  
  
Communication to 
VIII International Congress for Photogrammetry 
Reprint from 
Svensk Lantmateritidskrift 
Congress Number 1956 
Commission VII 
SOME PHOTOINTERPRETATION PROBLEMS AT REALI. 
LOTMENT OF FORESTED LAND 
By Sven G. Möller, director of the Photogrammetric Division of the 
Swedish Land Survey 
1. Introduction 
1.1. In a special article "A Method to Combine Geodetic and Photo- 
grammetric Methods with the Use of Photographic Interpretation and 
Helicopter at Reallotment of Forested Land" I have given an account 
of the Swedish Reallotment. It is a legal procedure of rearranging and 
planning landed estates so, that they will yield economically more than 
before. The land surveyor tries to decrease the number of land parcels 
and to form the landed estates so, that the length of boundaries will be 
shorter and the costs of transportation will be smaller. He has also to 
localize some farm centres on new sites (if necessary) and to plan new 
fieldways, drainings and boundary systems etc. 
1.2. Using photogrammetry at reallotment in a suitable and. econo- 
mical way means a many sided making use of it and an adaptation of it 
to the technical, economical and legal aspects, which are included in the 
procedure. In the course of the last six years the Swedish Land Survey 
has found a method for such a use, which is more satisfactory than the 
earlier ones. It includes among others the determination of geometric 
positions of control and ground details but also photointerpretation. 
Photointerpretation also will be used in a many sided way. A stereo- 
scopic study of aerial photographs is a mean of getting an excellant 
general survey of an area and its rural, forested and urban parts. But 
it is also a mean of scrutinizing the ground in details. So the land- 
surveyor, in lower or higher degree, can plan his fieldwork on photo- 
graphs e. g. network, the mapping out of forested areas, the site deter- 
mination, the signalizing of photo control points, boundaries and sample 
plots, the inventory of landparcels and sample plots etc. To some extent 
he can determine soils, moisture, tree species, forest site, slope, apprai- 
sal and the correlation between the informations'on ground and the 
corresponding informations on photographs. Another use of photo-