Figure 1
From: Nutrients exported from upland stream water enlarge perennial biomass crops
Spatial variations in concentrations of (a) NO3−, (b) soluble reactive phosphorus (SRP), (c) K+, (d) Mg2+, (e) Ca2+, and (f) Na+ in the main streams (circles) and tributaries (triangle) to the main streams of the Rawan, Moashoro, Ashoro, and Toshibetsu Rivers. The map was generated from Google Maps.
