Migration and Transformation of Heavy Metals in the Soil of the Water-Level Fluctuation Zone in the Three Gorges Reservoir under Simulated Nitrogen Deposition

Table 2

Cumulative release amounts of HMs in the soil of WFLZ in the TGR area (unit: µg).

Treatment	Cr	Cu	Cd	Ni	Pb
N0	32.44a	30.45a	1.61a	7.29a	6.76a
N20	34.21a	30.83a	1.69a	7.98a	14.27b
N40	35.08a	32.18a	1.67a	8.52a	22.74c
N60	38.82b	36.08b	1.87a	7.90a	31.15d

Note. The same letters mean no significant difference (p>0.05) and different letters mean significant difference () tested by one-way ANOVA.