The APPLICATION OF SMALL-FORMAT STEREO-CAMERA SYSTEMS AND A HOMING DEVICE 
I TO INVENTORY AND MONITORING OF NATURAL, RENEWABLE RESOURCES 
ation 
tions. b 
he y 
S could 
esults B. RHODY 
Sport 
Hamburg 
For - World-wide decrease of natural recources requires a rapid method of 
UAM assessment as a basis for a long-term yield and use forecasts. 
and - Large area can only be sampled this holds for ground samling but 
also for aerial photo-sampling. 
- Small formal cameras are highly suitable for this purpose. 
| from 
ote No 7 - For aerial photography of systematically distübuted samples (square 
bil clusters) on grids or along coardinate lines a homing device is indis-- 
pensable for guiding the aircraft along flight lines and to target 
Eom, plots, 
ntation 
of ^, 7 95 mm cameras with motor-drivenlong-film magazines are most suitiable 
ty. of for takirg coherent film strips while 70 mm non-metric camerasequipped 
ystem. " with intervalometer and parallel orientation of camera axes are 
mounted on light helicopter or fixed wing aircraft. The combined 
camera-equipment foraerial photo-sampling guided by mobile ground 
homing device represents an independent survey and inventory method. 
This approad can also be used for linking conventional asrial photo- 
graphy and extremely small-scale satellite imagery. 
In permanent inventory (or monitoring) of natural resources a number 
of permanently marked field sample plots must be re-photographed at 
definite time intervals. 
The procedure proposed constitutes a cost-efficient alternative to 
pure field sampling methods, particulary for the assessment of 
low-value forest and rangeland resources in remote, inaccessable aréas. 
413 
  
Regum. LLL pl 
nd 
m» s 
a A NN uu oa te E