. The Biological bulletin. Biology; Zoology; Biology; Marine Biology. 100 P. H. MITCHELL AND J. L. SOLINGER titratable base of estuary waters. The larger the proportion of deep soil drainage to surface run-off, the greater is the effect in this particular type of drainage area. Curves D and E illustrate the relatively large effect of deep soil drainage in another way. The salt water in these cases came from Sakonnet Point at the more easterly of the two mouths of Narragansett Bay. The fresh water in the case of curve D was taken from a pond about one mile inland from the Sakonnet shore and in
. The Biological bulletin. Biology; Zoology; Biology; Marine Biology. 100 P. H. MITCHELL AND J. L. SOLINGER titratable base of estuary waters. The larger the proportion of deep soil drainage to surface run-off, the greater is the effect in this particular type of drainage area. Curves D and E illustrate the relatively large effect of deep soil drainage in another way. The salt water in these cases came from Sakonnet Point at the more easterly of the two mouths of Narragansett Bay. The fresh water in the case of curve D was taken from a pond about one mile inland from the Sakonnet shore and in the case of curve E from a clear deep spring near the edge of the same pond. The ratio in curve D increased from (Cl, 16) to (Cl, 6) while in curve E the increase was much greater, from (Cl, 16) to (Cl, 6). 020 z E O 017 I O ' 016 015 014 013 012. 9 10 M 12 13 14 CHLORINITY . IN GRAMS PER LITER 19 FIG. 2. Effect of successive dilutions of sea water with fresh water from various sources. Curve D, with pond water, Curve E, with spring water, Curve F, with pond water from swampy soil, Curve G, with pond water from sandy soil. Another factor influencing the drainage effect is the character of the soil. Curves F and G illustrate this fact. The sea water used for both of these sets of measurements was taken from Woods Hole Harbor on June 14, 1933, after a period of only moderate rainfall. The fresh water used for the dilutions of curve F was collected on the same day from a nearby pond in a swampy area, while that used for curve G came from another pond about four miles away entirely surrounded by very sandy soil. Curve F shows a rise of the ratio to (Cl, 5) but curve G rises only to a ratio of at the same dilution. Apparently a barren, sandy soil yields comparatively little excess base to its drainage Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability -
Size: 3343px × 748px
Photo credit: © Library Book Collection / Alamy / Afripics
License: Licensed
Model Released: No
Keywords: ., bookauthorlilliefrankrat, booksubjectbiology, booksubjectzoology
