Combination of Carbon and Nitrogen Isotopes for Assessment of Soil Organic Matter in Yunnan Karst Area -Guizhou Plateau, Southwestern China : Figure 9

Figure 9: Relationship of TOC with (a) δ¹³C (b) δ¹⁵N and TN with (c) δ¹³C and (d) δ¹⁵N for the four soil profiles from karst area in Yunnan- Guizhou Plateau of southwestern China.