Table 1. Model parameters, nominal values, and source.

Symbol	Definition	Units	Nominal value	Source
h	Permanent burial rate of sediment P	y−1	0.001	10
c	P runoff coefficient	y−1	0.00115	Calculated from ref. 27
F	Annual agricultural import of P to the watershed per unit lake area	g·m−2·y−1	31.6	27
h	Outflow rate of P	y−1	0.15	10
H	Annual export of P from the watershed in farm products, per unit lake area	g·m−2·y−1	18.6	27
m	P density in the lake when recycling is 0.5 r	g·m−2	2.4	10
r	Maximum recycling rate of P	g·m−2·y−1	0.019	10
q	Parameter for steepness of f(P) near m	Unitless	8	10
s	Sedimentation rate of P	g·m−2·y−1	0.7	10
W	Nonagricultural inputs of P to the watershed prior to disturbance, per unit lake area	g·m−2·y−1	0.147	Calculated from ref. 27
WD	Nonagricultural inputs of P to the watershed after distrubance, per unit lake area	g·m−2·y−1	1.55	Calculated from ref. 27

Areal unit; are based on the area of the lake, not the area of the watershed.