水生生态系统中养分

Nitrogen and phosphorus are essential plant nutrients found in aquatic ecosystems, however, in excess amounts, they can cause significant water quality problems. Nitrogen and phosphorous in water are typically found in the forms of nitrate and phosphate, respectively. Both nutrients are dissolved in water and are readily absorbed by photosynthesizers such as algae.

Nitrates and phosphates enter the water systems through freshwater runoff from wastewater treatment plants, fertilized lawns and agricultural lands, faulty septic systems, a