STUDY OF THE PHYSICAL PROPERTIES OF SOILS THROUGH INTERPRETATION OF AERIAL PHOTOGRAPHS. I.
Final technical rept., 1 Apr 63-31 Mar 64
MADRID UNIV (SPAIN)
Pagination or Media Count:
A study was made of the soils and vegetation of two large, representative, areas of Spain by mapping them with the aid of photo-interpretation in one case but not so in other case, the aim being to compare the advantages offered by aerialphotography interpretation to the science of soil. In both cases representative profiles were taken for the purpose of testing in the laboratory the accuracy of the interpretations made in the field. These determinations were made through granulometric analysis using the densimeter without destroying the carbonates, and also by means of the international method by destroying the carbonates. Determinations were made of plasticity and plastic index, real and apparent density, permeability, decay coefficient, soluble-salts contents and X-ray diffraction patterns of the clay fraction. It is thus possible to know the physical properties of soils by deducing them indirectly from photointerpretation because they depend from a series of variables and factors which are known directly on the aerial photograph. These physical properties were also studied in the laboratory. Author