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This article in SSSAJ

  1. Vol. 27 No. 1, p. 82-83
     
    Received: Mar 12, 1962
    Published: Jan, 1963


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doi:10.2136/sssaj1963.03615995002700010028x

The Loss of Strontium90 from Small Cultivated Watersheds1

  1. Maurice H. Frere and
  2. Howard Roberts2

Abstract

Abstract

Soil samples were taken from the plow layer of eight small watersheds and analyzed for strontium90. Two watersheds in permanent pasture, with no recorded loss soil, contained about 90 mc. per square mile, which is slightly higher than an estimated total deposit at the time of sampling.

The plow layer of six watersheds under cultivation was sampled by compositing soil cores taken on contours of each watershed. The Sr90 concentration of these samples was from one-third to two-thirds of that in the permanent pastures.

The loss of Sr90 appeared to be influenced by length of slope and cropping history. No areas of Sr90 accumulation were found within these watersheds.

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