Multiobjective Network Optimization for Soil Monitoring of the Loess Hilly Region in China

Table 1

Variograms of soil water content and soil organic matter.

Variable	Model	Nugget	Sill	Range
SWC	Gaussian	0.4331	0.0669	2162.73
SOM	Exponential	0.0293	0.2788	2683.95