ScienceJohn Michels (Journalist) 1940 |
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Page 338
... soils and soil materials ranks with vertical movement of material within the soil profile as an agent of soil genesis and as a factor in determining soil charac- teristics and the distribution of soil types . The physio- graphic ...
... soils and soil materials ranks with vertical movement of material within the soil profile as an agent of soil genesis and as a factor in determining soil charac- teristics and the distribution of soil types . The physio- graphic ...
Page 392
... soil factors affecting tree growth . This is obviously not the place to attempt a résumé of the extensive literature dealing with soil - tree rela- tionships . Instead , therefore , I have chosen to present a rather generalized picture ...
... soil factors affecting tree growth . This is obviously not the place to attempt a résumé of the extensive literature dealing with soil - tree rela- tionships . Instead , therefore , I have chosen to present a rather generalized picture ...
Page 397
... soil and the atmosphere . Movement of air either into the soil or out of it resulting from pres- sure gradients produced by temperature differentials , changes in barometric pressure , air movement over the surface soil or even the ...
... soil and the atmosphere . Movement of air either into the soil or out of it resulting from pres- sure gradients produced by temperature differentials , changes in barometric pressure , air movement over the surface soil or even the ...
Contents
ALVAREZ W Lunar Rainbows 450 | 5 |
SIMMS H S Senile Debility and Mortality | 7 |
GAFFRON H Oxyhydrogen Reaction in Green Algae 529 | 9 |
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