Combination of Carbon and Nitrogen Isotopes for Assessment of Soil Organic Matter in Yunnan Karst Area -Guizhou Plateau, Southwestern China : Figure 5

Figure 5: Relationship of C/N with (a) TOC and (b) TN and clay proportion with (c) TOC and (d) TN for the four soil profiles from karst area in Yunnan-Guizhou Plateau of southwestern China.