Cultural Eutrophication
•
Accelerated
eutrophication due
to human activity
•
Increased levels of
nutrients
•
Phosphorus and
nitrogen
Accelerated eutrophication due to human activity
Higher nutrient levels mean higher productivity and increased chance of algal blooms
Nitrogen is more a concern in marine ecosystems, not freshwater ecosystems
Phosphorus is the key nut - crit level 12-15 ppb
Phosphorus sources:
failing septic systems
fertilizers
wastewater
runoff - agriculture, forest, roads, landuses such as
construction and logging