崇左地区土壤—水稻籽实重金属元素迁移特征及拟合模型研究

崇左地区土壤—水稻籽实重金属元素迁移特征及拟合模型研究

陈上仁, 钟晓宇, 李杰, 杨敏云, 黄娟, 陈彪, 何耀烨

Heavy metal transfer in the soil-rice system of Chongzuo and corresponding fitting models

CHEN Shang-Ren, ZHONG Xiao-Yu, LI Jie, YANG Min-Yun, HUANG Juan, CHEN Biao, HE Yao-Ye

表4 岩溶区与非岩溶区水稻籽实重金属元素拟合模型参数

Table 4 Parameters of fitting models for heavy metal elements in rice grains from karst and non-karst areas

因子	岩溶区水稻籽实				非岩溶区水稻籽实
因子	As	Cd	Hg	Pb	As	Cd	Hg	Pb
决定系数	0.41^**	0.46^**	0.51^*	0.34^**	0.57^**	0.41^*	0.74^**	0.52^*
常数	4.13	7.54	-0.16	-0.44	-4.41^**	2.97	1.65	-2.39
As	0.2^**	-	-	-	0.22^**	-	0.25^**	-
Cd	-	0.67^**	-	0.06^**	-	0.9^**	-	-
Cr	-	-	-	-	-	-	-0.38^**	-
Cu	-0.41^**	-	0.28^**	-	0.31^**	-	0.68^**	-0.21^**
Hg	-	-	0.26^**	-0.14^**	-0.17^**	0.88^**	-	-0.24^**
Ni	0.39^**	-	-	-	-	-0.97^**	-	0.49^**
Pb	-	-	-	-	-0.35^**	-	-	0.25^**
Zn	-0.23^**	-	-	-	-	-1.06^*	-	-0.33^**
Mn	-	-	-0.2^**	-	-	-	-	-0.09^**
N	-1.08^**	-	-	-	0.24^**	-	-	0.22^*
P	-0.21^**	-	0.39^**	-0.16^**	0.26^**	-	0.72^**	0.21^**
S	-	-1.16^**	-0.39^**	-	-	-	-1.4^**	-0.17^*
B	-	-	-	-	-	1.61^**	-	-0.18^**
Ge	0.38^**	-	-	-	-	-1.8^**	-	-0.19^**
Se	-	0.79^**	-	0.16^**	-	-	-	-
Al₂O₃	-0.71^**	0.93^**	0.32^*	-	-	-	0.59^**	-
CaO	-	-0.43^**	0.12^**	-	-	-	-	-0.15^**
Fe₂O₃	-	-1.07^**	-	0.11^**	-	1.04^**	-0.93^**
K₂O	-	-	-	-0.08^**	0.18^**	-	-	-
MgO	-	-	-	-	-0.23^**	-	-	-
Na₂O	0.24^**	-0.55^**	-	-	-	-	-	-
SiO₂	-	-1.07^**	0.49^**	-0.08^**	0.9^**	1.52^*	-	-
Corg	1.12^**	-	-0.84^**	0.05^**	-	-	-	-
pH	-	-2.04^**	-	-	-	-3.86^**	-	0.68^**