It is often required to do layout analysis of rationality for existing risk source and give suggestions for adjustment in the work of assessment of regional environmental risk

however

the optimization method in mathematics which is widely used in engineering and economic may work well in this complex system analysis. Based on Lingo

by applying the function of solving nonlinear programming

a method of lay-out optimization of regional environmental risk source was proposed in this paper

and the merits and demerits of this method were summarized and analyzed.