Short-Term Effects of Tillage Practices on Soil Organic Carbon Turnover Assessed by δ¹³C Abundance in Particle-Size Fractions of Black Soils from Northeast China

Figure 1

Particulate organic carbon (POC) in 0–20 cm layer of black soil under no tillage (NT) and mouldboard plough (MP). Bars indicate standard error. Different lowercase letters above the column indicate significant differences at 𝑃=0.05.

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