内蒙古土默特左旗典型草甸土中硒赋存形态特征

刘金宝, 徐宏国, 袁宏伟, 张晓峰

Speciation of selenium in typical meadow soils in Tumed Left Banner, Inner Mongolia, China

LIU Jin-Bao, XU Hong-Guo, YUAN Hong-Wei, ZHANG Xiao-Feng

表5 CP22土壤理化指标、有效硒、全量硒与各形态硒含量Spearman等级相关系数(r)统计

Table 5 Statistical of Spearman's rank correlation coefficients (r) between soil physicochemical indicators, effective selenium, total selenium and each form of selenium in the vertical soil section CP22

指标	水溶态硒	离子交换态硒	碳酸盐结合态硒	腐殖酸结合态硒	铁锰氧化物结合态硒	强有机结合态硒	残渣态硒
有效硒	0.9341^**	0.1905	-0.0719	0.9701^**	0.6667	0.9524^**	0.7619^*
全量硒	0.9461^**	0.0476	-0.0958	0.9940^**	0.6667	1.0000^**	0.8810^**
有机质	0.8253^*	0.3473	0.0000	0.8916^**	0.4671	0.8743^**	0.6108
pH值	-0.9940^**	-0.1190	-0.0120	-0.9461^**	-0.7381^*	-0.9524^**	-0.7619^*
CEC	0.1557	0.1429	-0.1198	0.2156	-0.2857	0.1905	0.0238
P	0.9102^**	0.1667	-0.2275	0.9940^**	0.6905	0.9762^**	0.8095^*
K	0.9515^**	0.1205	-0.0849	0.9940^**	0.6747	0.9880^**	0.8314^*
S	0.7545^*	0.0238	-0.2275	0.9102^**	0.5952	0.8810^**	0.8095^*