Impacts of Groundwater Recharge from Rubber Dams on the Hydrogeological Environment in Luoyang Basin, China

Table 3

Analysis of the chemical composition of water-soluble NH₄-N and NO₃-N in different soil depth. Unit: mg/kg dry soil.

Sample	S1			S2
Buried depth	NH4-N	NO3-N	Soil type	NH4-N	NO3-N	Soil type
0–10 cm	32.1	14.36	Sandy clay	28.1	18.25	Sandy clay
20–30 cm	27.2	7.53	Sandy clay	21.4	14.34	Sandy clay
50–60 cm	29.1	5.88	Sandy clay	20.1	7.21	Sandy clay
110–120 cm	41.6	2.43	Sandy clay	32.3	4.32	Sandy clay
240–250 cm	25.3	6.12	Sandy clay	28.1	8.44	Sandy clay
310–320 cm	36.7	4.32	Sandy clay	19.6	6.21	Sandy clay
450–460 cm	3.2	0.36	Sandy gravel	22.6	5.21	Sandy clay
550–560 cm	2.5	0.25	Sandy gravel	4.1	0.32	Sandy gravel
610–620 cm				2.3	0.18	Sandy gravel
650–660 cm				2.6	0.11	Sandy gravel