. Annual report of the New York State College of Agriculture at Cornell University and the Agricultural Experiment Station. New York State College of Agriculture; Cornell University. Agricultural Experiment Station; Agriculture -- New York (State). 26 T, Lyttleton Lyon and James A. Bizzell years passed thru the unplanted soil. Occasionally the drainage exceeds the precipitation. This occurs, with one exception only (in November, 1913), in the period included in that part of the year beginning with December and ending with April. In 1912 there was a very heavy flow in September, but it did not
. Annual report of the New York State College of Agriculture at Cornell University and the Agricultural Experiment Station. New York State College of Agriculture; Cornell University. Agricultural Experiment Station; Agriculture -- New York (State). 26 T, Lyttleton Lyon and James A. Bizzell years passed thru the unplanted soil. Occasionally the drainage exceeds the precipitation. This occurs, with one exception only (in November, 1913), in the period included in that part of the year beginning with December and ending with April. In 1912 there was a very heavy flow in September, but it did not exceed the rainfall, which was excessive for that month and also was large for the two preceding months. Ordinarily a large flow takes place in December or January accompanying a temporary thawing of the frozen soil. February is likely to see a small amount of drainage, the soil being deeply frozen at that time. This is aao- Dra/nage. 1 I I I I ?] f I M I I I M J I I I I I I 111 II I I I I I I I I I J, I III !,'<U-.|:rl'-J iiu), ij'kk^!J*(5 /9/0 -// /9//-/a t9/a-/3 /9/3~ /-^ Fig. 5. RELATION OF DRAINAGE TO RAINFALL BY MONTHS FOR THE UNPLANTED AND LIMED TANK 8 usually followed by the largest flow of the year in March or April, at which time the melted snow comes thru the soil. Months of large rainfall are not always months of large drainage flow. This may be accounted for in the summer, when the temperatures are high and the humidity is low, by supposing a large evaporation from the surface of the soil. There appears, however, to be an accumulation of moisture in the soil for a considerable period and then a rapid discharge. In winter this is Ukely to be coincident with a thaw, and is then more pronounced than at other times. The heavy discharges in December, frequently exceeding the rainfall, are not usually due to an accumulation 26. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration
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