Organic loading rate , role

Resource limitations of productivity in wetlands and aquatic ecosystems have focused on inorganic nutrient availability and loading rates from drainage basins. Recently, research has shown that much of the nutrient bioavailability in the soil and water column is associated with nutrients bound in or with naturally dissolved organic compounds. Many of the nutrient and organic substrate limitations are focused on hydrolytic activity of enzymes. The role of enzymes in regulating elemental cycles is addressed in various chapters of this book. 

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