Online Measurement of Soil Organic Carbon as Correlated with Wheat Normalised Difference Vegetation Index in a Vertisol Field

Figure 8

Comparison between maps of laboratory measured soil organic carbon (SOC) (92 samples) (a), online visible and near infrared (vis-NIR) predicted full-point SOC (6486 points) (b), and normalized difference vegetation index (NDVI) (c).

(a)

(b)

(c)