山东省广饶县土壤重金属来源、分布及生态风险

周旭, 吕建树

Sources, distribution and ecological risk of soil heavy metals in Guangrao county, Shandong province

Xu ZHOU, Jianshu LV

表4 来自不同土地利用类型和成土母质的土壤重金属含量差异(mg·kg^-1)

Tab. 4 The contents of heavy metals in soils from different land use types and parent materials in Guangrao county (mg·kg^-1)

		参数	As	Cd	Co	Cr	Cu	Hg	Mn	Ni	Pb	Zn
土地利用类型	耕地	范围	5.2~17.7	0.07~0.24	6.1~16.9	53.5~94.1	11.8~37.9	0.011~0.261	411~970	14.6~43.4	12.6~29.3	34.8~98.7
		平均值	10.9^b	0.13^a	12.1^a	68.2^a	24.2^a	0.036^b	593^a	29.1^a	22.7^a	67.9^a
		标准差	2.65	0.01	1.78	5.59	4.38	0.02	98.70	4.89	2.81	10.32
	林地	范围	8.6~14.5	0.11~0.17	10.9~13.3	64.1~74.0	22.5~28.6	0.018~0.052	511~698	25.6~32.7	21.4~25.8	63.9~78.3
		平均值	11.4^a	0.15^a	11.9^a	68.4^a	24.6^a	0.033^b	601^a	28.8^a	23.1^a	69.1^a
		标准差	2.28	0.04	0.75	3.53	2.36	0.01	66.99	2.60	1.86	5.92
	草地	范围	9.8~12.7	0.08~0.14	10.7~13.5	66.4~72.7	20.7~23.9	0.019~0.023	568~639	27.2~30.6	22.4~23.3	63.2~65.6
		平均值	11.3^a	0.11^b	11.8^a	69.1^a	22.4^a	0.021^b	597^a	28.9^a	22.8^a	64.3^b
		标准差	1.25	0.02	1.03	2.06	1.24	0.001	26.07	1.29	0.54	1.1
	城镇建设用地	范围	6.5~12.7	0.11~0.16	9.3~13.3	57.4~70.7	19.6~26.9	0.020~0.537	453~609	22.7~29.5	20.0~30.4	54.4~78.9
		平均值	10.1^b	0.14^a	11.3^b	63.8^b	22.9^a	0.098^a	525^b	25.8^b	24.2^a	64.6^b
		标准差	1.45	0.02	1.05	3.34	2.08	0.14	45.94	2.35	2.11	6.59
	农村居民用地	范围	6.5~14.3	0.09~0.21	9.3~15.6	59.4~78.3	17.5~29.7	0.023~0.149	440~726	20.2~37.5	17.1~27.0	49.2~80.6
		平均值	10.5^b	0.13^a	11.9^a	66.7^a	23.1^a	0.041^b	572^a	28.3^a	22.7^a	66.0^a
		标准差	2.20	0.01	1.70	4.09	2.97	0.03	74.69	4.45	2.32	7.34
土壤母质类型	海积物	范围	5.2~16.2	0.07~0.18	6.1~16.2	53.1~94.1	11.9~36.5	0.014~0.031	411~886	14.6~41.4	12.6~28.6	34.8~95.4
		平均值	9.5^b	0.12^a	9.9^b	68.0^a	18.9^b	0.021^c	548^b	24.4^b	18.5^b	56.4^b
		标准差	2.72	0.03	1.9	8.14	5.39	0.004	109.68	5.71	4.00	12.37
	湖相沉积物	范围	7.9~17.7	0.08`0.24	8.8~16.9	57.1~81.9	15.6~36.7	0.017~0.055	464~970	21.6~43.4	17.1~28.4	47.9~98.6
		平均值	12.3^a	0.15^a	12.8^a	70.4^a	25.8^a	0.030^b	649^a	31.9^a	23.6^a	72.4^a
		标准差	2.38	0.03	1.55	5.22	4.15	0.01	102.37	4.47	2.39	9.29
	黄河冲积物	范围	8.4~16.9	0.08~0.21	10.3~15.5	60.9~77.4	20.6~30.7	0.024~0.066	506~743	25.6~36.3	20.9~27.8	58.5~85.6
		平均值	12.9^a	0.14^a	12.6^a	69.6^a	25.4^a	0.036^b	621^a	31.3^a	23.1^a	73.3^a
		标准差	1.82	0.03	1.2	4.31	2.86	0.01	63.62	2.79	1.89	6.73
	鲁中南山前冲洪积物	范围	5.3~15.0	0.08~0.19	9.0~15.5	57.1~75.1	17.5~37.8	0.011~0.537	440~732	20.1~37.8	17.3~30.5	49.3~82.1
		平均值	9.6^b	0.13^a	11.7^a	65.7^b	23.5^a	0.048^a	548^b	27.1^b	23.2^a	65.1^a
		标准差	1.86	0.02	1.49	4.09	3.18	0.05	64.29	3.63	2.21	7.41