Forms and subannual variability of nitrogen and phosphorus loading to global river networks over the 20th century
Nitrogen (N) and phosphorus (P) loading of global aquatic ecosystems has doubled during the 20th century and at the same time has the nutrient composition been disturbed by increasing proportions of inorganic forms from 30 to 43% for N and from 56 to 65% for P. This is one of...
