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The Loss of Strontium90 from Small Cultivated Watersheds
Author(s) -
Frere Maurice H.,
Roberts Howard
Publication year - 1963
Publication title -
soil science society of america journal
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.836
H-Index - 168
eISSN - 1435-0661
pISSN - 0361-5995
DOI - 10.2136/sssaj1963.03615995002700010028x
Subject(s) - plough , watershed , hydrology (agriculture) , environmental science , pasture , soil loss , tillage , sampling (signal processing) , transect , cropping , mollisol , soil water , soil science , geology , agronomy , forestry , geography , erosion , biology , geomorphology , agriculture , archaeology , oceanography , geotechnical engineering , machine learning , computer science , filter (signal processing) , computer vision
Soil samples were taken from the plow layer of eight small watersheds and analyzed for strontium 90 . 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 Sr 90 concentration of these samples was from one‐third to two‐thirds of that in the permanent pastures. The loss of Sr 90 appeared to be influenced by length of slope and cropping history. No areas of Sr 90 accumulation were found within these watersheds.