Nutrients are recognized as one of the nine planetary boundaries, which could increase
risks of unacceptable global environmental changes. In this study we developed a recent …

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) …

We describe how global models can be used to analyze past and future trends in nutrient
export from watersheds and how such models can be used to analyze causes and effects of …

[1] Coastal eutrophication is a worldwide problem [Diaz and Rosenberg, 2008; Selman et
al., 2008]. It is largely caused by increased river transport of nutrients such as nitrogen (N) …

This paper presents a global model‐based country‐scale quantification of urban N and P
mass flows from humans, animals, and industries and their waste N and P discharges to …

Nitrogen and phosphorus are key to human life and crop production. However, excessive
nutrient losses from agriculture affect air, soil, and water quality, with significant negative …

Impacts of increasing population pressure on food demand and land resources has sparked
interest in nutrient balances and flows at a range of scales. West Asia/North Africa, China …

Nitrogen (N) and phosphorus (P) from anthropogenic sources are needed to produce food
for the growing world population. As a result, these nutrients can be found in nearly every …

This paper addresses the issue of environmental and ecological impacts of nutrient flows
within and between countries by reviewing and presenting data on nutrient balances and …

Humans have altered the natural nitrogen and phosphorus biogeochemical cycles by the
massive input of fertilizers to the agricultural system to boost production. As a result a large …