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| 森林土壤重金属的分布和迁移: 一种高密度采样方法的应用 | |
| 引用本文： | RUAN Xin-Ling,ZHANG Gan-Lin,NI Liu-Jian,HE Yue. 森林土壤重金属的分布和迁移: 一种高密度采样方法的应用[J]. 土壤圈, 2008, 18(3): 386-393. DOI: 10.1016/S1002-0160(08)60029-6 |
| 作者姓名： | RUAN Xin-Ling ZHANG Gan-Lin NI Liu-Jian HE Yue |
| 作者单位： | [1]State Key Laboratory of Soil and Sustainable Agriculture, Institute of Soil Science; Chinese Academy of Sciences,Nanjing 210008 （China） [2]Graduate School of the Chinese Academy of Sciences, Beijing 100049 （China） [3]College of Resources and Environmental Sciences, Nanjing Agricultural University, Nanjing 210095 （China） |
| 基金项目： | 国家自然科学基金，中国科学院基金，江苏省自然科学基金 |
| 摘 要： | The vertical distribution and migration of Cu, Zn, Pb, and Cd in two forest soil profiles near an industrial emission source were investigated using a high resolution sampling method together with reference element Ti. One-meter soil profile was sectioned horizontally at 2 cm intervals in the first 40 cm, 5 cm intervals in the next 40 cm, and 10 cm intervals in the last 20 cm. The migration distance and rate of heavy metals in the soil profiles were calculated according to their relative concentrations in the profiles, as calibrated by the reference element Ti. The enrichment of heavy metals appeared in the uppermost layer of the forest soil, and the soil heavy metal concentrations decreased down the profile until reaching their background values. The calculated average migration rates of Cd, Cu, Pb, and Zn were 0.70, 0.33, 0.37, and 0.76 cm year^-1, respectively, which were comparable to other methods. A simulation model was proposed, which could well describe the distribution of Cu, Zn, Pb, and Cd in natural forest soils. |
| 关 键 词： | 迁移速度 溶解能力 重金属 森林 土壤学 |
| 收稿时间： | 2007-09-30 |
| 修稿时间： | 15 March 2008. |
Distribution and migration of heavy metals in undisturbed forest soils: A high resolution sampling method |
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| RUAN Xin-Ling,ZHANG Gan-Lin,NI Liu-Jian and HE Yue. Distribution and migration of heavy metals in undisturbed forest soils: A high resolution sampling method[J]. Pedosphere, 2008, 18(3): 386-393. DOI: 10.1016/S1002-0160(08)60029-6 | |
| Authors: | RUAN Xin-Ling ZHANG Gan-Lin NI Liu-Jian HE Yue |
| Affiliation: | aState Key Laboratory of Soil and Sustainable Agriculture, Institute of Soil Science, Chinese Academy of Sciences, Nanjing 210008 (China) bGraduate School of the Chinese Academy of Sciences, Beijing 100049 (China) cCollege of Resources and Environmental Sciences, Nanjing Agricultural University, Nanjing 210095 (China) |
| Abstract: | The vertical distribution and migration of Cu,Zn,Pb,and Cd in two forest soil profiles near an industrial emission source were investigated using a high resolution sampling method together with reference element Ti.One-meter soil profile was sectioned horizontally at 2 cm intervals in the first 40 cm,5 cm intervals in the next 40 cm,and 10 cm intervals in the last 20 cm.The migration distance and rate of heavy metals in the soil profiles were calculated according to their relative concentrations in the profiles,as calibrated by the reference element Ti.The enrichment of heavy metals appeared in the uppermost layer of the forest soil,and the soil heavy metal concentrations decreased down the profile until reaching their background values.The calculated average migration rates of Cd,Cu,Pb,and Zn were 0.70,0.33,0.37,and 0.76cm year-1,respectively,which were comparable to other methods.A simulation model was proposed,which could well describe the distribution of Cu,Zn,Pb,and Cd in natural forest soils. |
| Keywords: | distribution heavy metals high resolution sampling method migration rate |
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