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Table 1 Physicochemical properties of the soil used in the study

From: Organic mulching promotes soil organic carbon accumulation to deep soil layer in an urban plantation forest

Soil layer (cm) pH Total carbon (g∙kg− 1) Total nitrogen (g∙kg− 1) Total phosphorus (g∙kg− 1) Available phosphorus (mg∙kg− 1) Total potassium (g∙kg− 1) Available potassium (g∙kg− 1) NO3-N (mg∙kg− 1) NH4+-N (mg∙kg− 1)
0–20 7.29 13.12 1.58 0.40 29.02 1.08 0.14 1.71 2.50
20–40 7.31 11.20 1.42 0.32 23.12 0.95 0.13 1.69 1.43