Research Article

Characteristics and Driving Mechanism of Soil Organic Carbon Content in Farmland of Beijing Plain: Implication for the Fate of Engineered Polymers in Soil

Table 2

The soil organic carbon content of variant soil textures in different years.

Soil texture typesSOC/g⋅kg−1Amplitude/%
201020112012201320142015

Middle loam10.44±3.82b12.77±4.81a12.21±7.45a13.84±4.92a14.34±7.53a14.75±7.28a8.26
Light loam11.15±3.92a11.40±3.16a10.89±3.68b11.55±4.02a11.67±3.28a12.48±5.65b2.39
Sandy loam10.56±5.20b9.44±3.53b9.50±5.78c10.76±6.31b10.07±4.54b10.36±3.54c-0.39
Sand8.44±2.78b8.32±2.65b7.77±2.99c8.07±3.46b10.43±4.66b9.58±5.39c2.70

Note: values with same letter in the same year indicates that the SOC of different soil texture is not significantly different with time (p>0.05).