My watershed management class is trying to find out why one of our local lakes is so over populated with plants. we've done nitrogen testing but, our results show that the levels are low.
What causes an overgrowth of plants in a lake besides nitrogen?
The other major nutrient other than nitrogen is phosphorus. Test for that.
Overpopulated is a subjective term. So is low. For example, 10 mg of nitrate as nitrogen/L is the EPA drinking water standard.
Reply:High CO2 concentration in the area...frequent thunderstorms (*specifically* thunderstorms)
Reply:Feeding the plant to much and it produces off other layers of the plant.
Reply:plants use nitrogen to pruce protein. I doubt if those plants in the lake are high in protein. I believe an overgrowth of plants in a lake s most likely due to the lake having a favourable growth condition for the plants to thrive. (afterall not every species of plant grows there) e.g moderate PH (not acidic) and very organic (therefore high in nutrients)
ciao :)
Reply:Higher than average temps, increased sunlight, fertilizer and manure washing into lake (this is nitrogen...what N are you asking about?)
its called eutrification. i think.
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