X1011690512-00180-39734</DOCNO> 9(q) Soil Organic Matter Decomposition and Nutrient Cycling 9) Introduction to Biogeography and Ecology (q) Soil Organic Matter Decomposition and Nutrient Cycling In terrestrial ecosystems most of the nutrient cycling occurs in the topmost horizons in soil .
(most of the nutrient cycling; occurs; L:in the topmost horizons in soil; L:In terrestrial ecosystems)
most of the nutrient cycling
occurs
L:in the topmost horizons in soil L:In terrestrial ecosystems