Urban ecological studies, including focus on cities, suburbs, and exurbs, while having deep
roots in the early to mid 20th century, have burgeoned in the last several decades. We use …

Carbon, nitrogen, and phosphorus are critical macroelements in freshwater systems.
Historically, researchers and managers have focused on inorganic forms, based on the …

In January 2003, the US Environmental Protection Agency sponsored a “roundtable
discussion” to develop a consensus on the relationship between eutrophication and harmful …

Concentrations of phosphorus and nitrogen in surface waters are being regulated in the
United States and European Union. Human activity has raised the concentrations of these …

An integrated modeling approach was used to connect socioeconomic factors and nutrient
management to river export of nitrogen, phosphorus, silica and carbon based on an updated …

Since the mid 1990s, constructed wetlands have been increasingly used as a low‐energy
'green'technique, in the treatment of wastewater and stormwater, driven by the rising cost of …

While the global increase in the use of nitrogen-based fertilizers has been well recognized,
another change in fertilizer usage has simultaneously occurred: a shift toward urea-based …

In both marine and freshwaters, the concentration of dissolved organic nitrogen (DON)
frequently exceeds that of dissolved inorganic nitrogen (DIN), including ammonium, nitrate …

Historically most harmful algal species (HAS) have been thought to be strictly phototrophic.
Mixotrophy, the use of phototrophy and heterotrophy in combination, has been emphasized …

An overview of the first spatially explicit, multielement (N, P, and C), multiform (dissolved
inorganic: DIN, DIP; dissolved organic: DOC, DON, DOP; and particulate: POC, PN, PP) …