| 北京市不同土地利用方式下土壤铬和镍的积累 |
| |
| 引用本文： | 郑袁明,陈同斌,郑国砥,黄泽春,罗金发.北京市不同土地利用方式下土壤铬和镍的积累[J].资源科学,2005,27(6):162-166. |
| |
| 作者姓名： | 郑袁明 陈同斌 郑国砥 黄泽春 罗金发 |
| |
| 作者单位： | 中国科学院地理科学与资源研究所,北京,100101 |
| |
| 基金项目： | 国家自然科学基金，北京市自然科学基金，中国科学院知识创新工程项目，中国科学院知识创新工程项目 |
| |
| 摘 要： | 通过对北京市菜地、稻田、果园、绿化地、麦地以及自然土壤的调查分析,探讨了不同土地利用方式对土壤中铬、镍积累的影响.结果表明,在6种土地利用类型中,按从高到低的顺序土壤铬浓度依次为:菜地＞稻田＞麦地＞绿化地＞果园＞自然土壤,土壤镍浓度依次为:菜地＞稻田＞绿化地＞麦地＞自然土壤＞果园.与北京市土壤背景值比较,土壤中铬、镍的浓度并没有普遍增加,仅在菜地以及稻田中存在一定的积累趋势.不同土地利用类型中土壤铬、镍浓度的分布趋势较为一致,二者在土壤中的浓度仍主要受到成土母质的影响,受人类活动的影响仍不太大.
|
| 关 键 词： | 北京 铬 镍 土地利用 土壤 重金属 |
| 文章编号： | 1007-7588（2005）06-0162-05 |
| 收稿时间： | 2005-05-02 |
| 修稿时间： | 2005-07-06 |
Chromium and Nickel Accumulations in Soils under Different Land Uses in Beijing Municipality |
| |
| ZHENG Yuan-ming,CHEN Tong-bin,ZHENG Guo-di,HUANG Ze-chun,LUO Jin-fa.Chromium and Nickel Accumulations in Soils under Different Land Uses in Beijing Municipality[J].Resources Science,2005,27(6):162-166. |
| |
| Authors: | ZHENG Yuan-ming CHEN Tong-bin ZHENG Guo-di HUANG Ze-chun LUO Jin-fa |
| |
| Abstract: | Soil pollution from heavy metals has been concerned by scientists for decades. The mobilization of heavy metals into the biosphere by human activity has become an important process in the geochemical cycling of these metals. Since the human activities vary greatly with the different land use type, it is important to assess the soil environmental quality under the different land use type. Beijing, a city developing with high speed, is suffering the huge changes in land use. Unfortunately, the effects of such changes on the environment still remain unknown. Through the investigation on 6 land-use types, which include the vegetable field, paddy field, orchard, greenbelt, cornfield and natural soil, 607 concentrations for Cr and Ni were obtained. Using background concentration as criterion, the concentrations of Cr and Ni in the soils from vegetable field and paddy field showed obvious increase, especially the concentrations of Cr in the soils. In addition, the concentrations of Cr in the vegetable field soils were significantly higher than those in other land use type soils except paddy field. So it could be concluded that land use showed great effects on the accumulation of Cr and Ni in the soils of vegetable field. In general, Cr and Ni showed the similar distribution in the soil, which might indicate that two elements had the similar source, i.e., parent material. But in greenbelt the concentrations of Cr and Ni were not consistent since the tail gas of automobile affected the concentrations of Ni. So parent rock played quite important roles on the concentrations of Cr and Ni in the soils. |
| |
| Keywords: | Beijing Cr Land use type Ni Soil |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ |
| 点击此处可从《资源科学》浏览原始摘要信息 |
| 点击此处可从《资源科学》下载免费的PDF全文 |
|
