Exposure to Light Elicits a Spectrum of Chemical Changes in Soil

  title={Exposure to Light Elicits a Spectrum of Chemical Changes in Soil},
  author={Timothy A. Doane and Lucas C. R. Silva and William R. Horwath},
  journal={Journal of Geophysical Research: Earth Surface},
  pages={2288 - 2310}
The significance of photochemically active solar radiation is well substantiated in Earth's air and water environments, but no broad connection has yet been ascertained between sunlight and the chemical properties of land surfaces. Since it is obvious that sunlight strikes Earth every day, an inquiry into this connection was made in a simple experiment with a diverse group of 20 soils. Light‐induced alteration of most of the major elements in soil was evident, including significant changes in… 

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