pensate for the scarcity of a base cartography. 
  
  
  
   
  
   
    
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
   
  
    
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
neo 
s Methodology and survey phases 
ho- 
s In table no. 1 are exemplified the methodologic phases uti- 
lized to prepare a cartographic document suitable to ascertain 
| the real urban and agricultural land-suitability of the zone under 
s examination. 
iles After a first phase consisting in the air photograph inter- 
pretation and the consequent drawing-up of expedition maps at the 
same scale of air photographs, the second check phase was carried 
out with campaign surveys and topographic and morphologic checks, 
by using photogrammetric instruments. In the third phase, the 
different data obtained through the first and the second phases 
were correlated so that to be able to prepare a "Land-units" map, 
,0— which is the starting-point of the preparation of a "Land-suitabi 
| of lity" map, and furthermore of explanatory natural sections of 
'a- the environmental characteristics. 
ital 
mi FIRST PHASE SECOND PHASE THIRD PHASE 
ines |" r [ | 
been BASE MAP CAMPAIGN 
r (HYDROGRAPHIC NET SURVEYS _ 
WATERSHEDS, etc.) TOPOGRAPHIC 
agri SIGHTS LAND-UNITS MAP 
LAND-FORMS MAP > SURVEY | |, EPA S 
CARDS 
is RATION 
| LAND-USE MAP OF SECTIONS 
unds, TOPOGRAPHIC 
AND MORPHOLO 
GIC SECTIONS 
m | 
zra- 
Drawing-up of base the- Campaign surveys,check of Final drawing-up 
een matic maps(scale ; first phase air photo- of "Land human 
1:20000 approx. ),obtai- graph interpretation,pre suitability" maps 
. ned from the air photo- paration of topographic 
graph interpretation Sections 
, and 
Table 1 : Explanatory scheme of the investigation phases carried out in 
Zono- adopted work-methodology. 
zr to 
rks 
0)do- 
le to 
com- 
955