*Ecological Archives*
A013-019-A8

**Donald Ludwig, Steve Carpenter,
and W. Brock. 2003. Optimal phosphorus loading for a potentially eutrophic lake.
***Ecological Applications* 13:1135–1152.

Appendix H. A figure showing
trajectories that correspond to Appendix F, but with
the discount rate of Appendix G.

FIG.
H1. This figure is analogous to Fig. F1, but the trajectories correspond to
those in the lower left panel of Fig. G1. The blue trajectory starts in the
upper part of the green area in Fig. G1, and the red trajectory starts in the
lower left part of the green area. The green trajectory starts in the right
part of the green area in Fig. G1, and the cyan trajectory starts in the blue
region. The time interval used here is too short to show that the cyan trajectory
eventually reaches the diamond in the blue region. Axes labels: *L* = load
of P in kilograms per square meter per year, *P* = concentration of P in
lake in kilograms per square meter, *M* = concentration of P in mud in
kilograms per square meter, and PV = present value.

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