Carbon and nitrogen accumulation and microbial activity in Mount St. Helens pyroclastic substrates after 25 years

  title={Carbon and nitrogen accumulation and microbial activity in Mount St. Helens pyroclastic substrates after 25 years},
  author={Jonathan J. Halvorson and Jeffrey L. Smith},
  journal={Plant and Soil},
Lupines (Lupinus lepidus var. lobbii) are important integrators of above and belowground development of Mount St. Helens (1980) pyroclastic substrates because they increase soil organic matter formation and microbial activity and influence other biotic processes. However, basic information is required to understand the unfolding pattern of soil development and to corroborate evidence for increasing rates of organic matter accumulation suggested by earlier work. Soil properties were measured in… CONTINUE READING
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