CADMIUM, LEAD, ZINC, COPPER, AND NICKEL IN AGRICULTURAL SOILS OF THE UNITED-STATES-OF-AMERICA
CADMIUM, LEAD, ZINC, COPPER, AND NICKEL IN AGRICULTURAL SOILS OF THE UNITED-STATES-OF-AMERICA
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DOI：
10.2134/jeq1993.00472425002200020015x
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发表时间：
1993-04-01
影响因子：
2.4
通讯作者：
DANIELS, RB
中科院分区：
文献类型：
--
作者：
HOLMGREN, GGS;MEYER, MW;DANIELS, RB
摘要在主要农作物对微量元素吸收的研究过程中，对307个不同土壤系列的345个表层土壤样品进行了Pb、Cd、Zn、Cu、Ni、阳离子交换容量（CEC）、有机C和pH的分析。本文以统计和地图的形式总结了本研究的土壤数据，以显示它们的相互作用和广义的地理分布模式。东南地区所有河流金属元素的含量普遍较低。密西西比、俄亥俄和密苏里河谷地区的铅含量最高，约为每公斤15毫克。其他元素的高值通常集中在西部和密西西比河下游流域。在加利福尼亚中部和南部沿海地区的土壤中发现了最高的镉含量。在佛罗里达州、俄勒冈州和五大湖的有机土壤地区，铜的含量明显较高。镍和铜的浓度在加利福尼亚的蛇纹石土壤地区很高。在北部大平原和缅因州北部的冰川地区，镍含量也略高。对于整个数据集，最小-最大、第5、第50和第95百分位的值分别为：（mg/kg干土）Cd，
Three thousand forty-five surface soil samples from 307 different soil series were analyzed for Pb, Cd, Zn, Cu, Ni, cation exchange capacity (CEC), organic C, and pH in the course of a study of trace element uptake by major agricultural crops. The soil data from this study are summarized here statistically and in map form to show their interactions and generalized geographic distribution patterns. Amounts of all rive metal elements are generally low in the Southeast. A regional high of about 15 mg/kg Pb covers the Mississipi, Ohio, and Missouri River valleys. Higher values for other elements are generally concentrated in the West and in the lower Mississippi River Valley. Maximum Cd levels were found in soils of the coast ranges of central and southern California. Copper levels are noticeably higher in organic soil areas of Florida, Oregon, and the Great Lakes. Nickel and Cu concentrations are high in serpentine soil areas of California. Nickel levels are also somewhat higher in the glaciated areas of the northern great plains and in northern Maine. For the entire dataset, the values of the minimum-maximum, 5th, 50th, and 95th percentiles are as follows: (mg/kg dry soil) Cd,