Fig. 4.
(a) Projection of the optimum composite tracers on the PC-plane using PCCA, (b) Projection of the cases on the PC-plane using PCCA; RR: recreational road; CB: channel banks; HSS: hillslope surface soils.
Official websites use .gov
A
.gov website belongs to an official
government organization in the United States.
Secure .gov websites use HTTPS
A lock (
) or https:// means you've safely
connected to the .gov website. Share sensitive
information only on official, secure websites.