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我国菜园土壤中某些重金属元素的含量与分布
引用本文:张民,龚子同.我国菜园土壤中某些重金属元素的含量与分布[J].土壤学报,1996,33(1):85-93.
作者姓名:张民  龚子同
作者单位:中国科学院南京土壤研究所, 210008;中国科学院南京土壤研究所, 210008
基金项目:* 中国科学院特别支持项目;国家自然科学重点资助
摘    要:本文对我国各主要起源母土上发育的厚熟土、不同熟化程度的菜园土以及相对应的粮田土壤37个剖面中某些重金属元素的全量及有效态含量进行了研究,结果表明:菜园土壤随种菜历史的延长、熟化程度的增加、重金属元素Zn、Cu、Pb的含量有明显增高的趋势。元素在剖面中的分布以表层含量最高,向下递减。厚熟土由于具有较厚的熟化表层,元素全量及有效态含量在0-40cm土层中均较高,多在过渡层之下出现突然降低的转折;中度和

关 键 词:重金属  土壤污染  厚熟土  菜园土壤
收稿时间:1994/3/25 0:00:00

CONTENTS AND DISTRIBUTION OF SOME HEAVY METAL ELEMENTS IN THE VEGETABLE CULTIVATED SOILS IN CHINA
Zhang Min and Gong Zitong.CONTENTS AND DISTRIBUTION OF SOME HEAVY METAL ELEMENTS IN THE VEGETABLE CULTIVATED SOILS IN CHINA[J].Acta Pedologica Sinica,1996,33(1):85-93.
Authors:Zhang Min and Gong Zitong
Institution:Institute of Soil Science, Academia Sinica, Nanjing 210008;Institute of Soil Science, Academia Sinica, Nanjing 210008
Abstract:The total and available contents of several heavy metal elements in thirty-seven Profiles of Fimus soils, different vegetable cultivated mellow soils and corresponding grain crop soils derived from different original soils in China were studied. The distribution characteristics of heavy metals, the relationships between total and available element contents, between elements and some soil properties, and among elements were elucidated. Results showed that as the ripening degree increased, there was an evident increase tendency of increase in the contents of Zn, Pb, Cu and Cd. Total and available metal element contents decreased with the soil depth. In Fimus soils, the elemental contents were higher in the upper horizon of 0 to 40 cm and decreased dramatically below the transitional horizons due to the thicker fimic epipedons. In the moderately and slightly ripening vegetable cultivated soils, element contents were higher only in the surface horizons and decreased sharply below surface horizons, but there were no evident changes in the profiles of grain crop soils.
Keywords:Heavy metal elements  Contaminants  Soil pollution  Fimus soils  Vegetable cultivated soils
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