| Studies on the chromium concentrations in topsoils and subsoils of two rapidly industrialized cities in the Yangtze River Delta in east China | |
Wu, Chunfa1,2; Luo, Yongming1 ; Huang, Biao1; Zhang, Haibo1; Wang, Huoyan3
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| 发表期刊 | ENVIRONMENTAL EARTH SCIENCES
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| ISSN | 1866-6280 |
| 2010-09-01 | |
| 卷号 | 61期号:6页码:1239-1247 |
| 关键词 | Chromium One-way Analysis Of Variance Paired-samples t Test Spatial Distribution |
| 产权排序 | [Wu, Chunfa; Luo, Yongming; Huang, Biao; Zhang, Haibo] Chinese Acad Sci, Inst Soil Sci, Key Lab Soil Environm & Pollut Remediat, Nanjing 210008, Peoples R China; [Wu, Chunfa] Chinese Acad Sci, Yantai Inst Coastal Zone Res Sustainable Dev, Yantai 264003, Peoples R China; [Wang, Huoyan] China Acad Sci, Inst Soil Sci, State Key Lab Soil & Sustainable Agr, Nanjing 210008, Peoples R China |
| 通讯作者 | Luo, YM, Chinese Acad Sci, Inst Soil Sci, Key Lab Soil Environm & Pollut Remediat, Nanjing 210008, Peoples R China |
| 作者部门 | 滨海湿地实验室 |
| 英文摘要 | A total of 782 topsoil samples (0-20 cm) and 371 subsoil samples (20-40 cm) were collected from agricultural land in two rapidly industrialized areas with a large number of small rural industries in southeast China, Zhangjiagang City (ZJG) and Changshu City (CS), to measure soil chromium (Cr) concentrations. Kriging and cokriging were used to predict the spatial distribution of Cr in the topsoils and subsoils. Paired-samples t test and spatial distribution maps were used to compare the Cr concentrations in topsoils and subsoils. The mean Cr concentration in ZJG topsoils was significantly higher than that in ZJG subsoils and the mean Cr concentration in CS topsoils showed no significant difference from that in CS subsoils. The Cr concentrations in topsoils were higher than those in subsoils over most of the area of ZJG and part of CS, suggesting that Cr accumulation had occurred in these areas and extrinsic factors have an important role controlling the distribution of Cr in topsoils. Semivariogram/cross-semivariogram was used to evaluate soil Cr spatial variability. The Cr in ZJG topsoils, ZJG subsoils, and CS topsoils had moderate spatial dependence and the Cr in CS subsoils had strong spatial dependence. Cr in ZJG subsoils had longer effective range than Cr in ZJG topsoils, suggesting that the anthropogenic factors affecting Cr distribution in ZJG topsoils; and Cr in CS topsoils had longer effective range than Cr in CS subsoils, indicating that soil formation may be the major explanation for the decrease in the variation of Cr in topsoils. A significant correlation was found between the Cr in topsoils and Cr in subsoils, indicating that natural factors also play an important role as extrinsic factors that control the distribution of Cr in topsoils.; A total of 782 topsoil samples (0-20 cm) and 371 subsoil samples (20-40 cm) were collected from agricultural land in two rapidly industrialized areas with a large number of small rural industries in southeast China, Zhangjiagang City (ZJG) and Changshu City (CS), to measure soil chromium (Cr) concentrations. Kriging and cokriging were used to predict the spatial distribution of Cr in the topsoils and subsoils. Paired-samples t test and spatial distribution maps were used to compare the Cr concentrations in topsoils and subsoils. The mean Cr concentration in ZJG topsoils was significantly higher than that in ZJG subsoils and the mean Cr concentration in CS topsoils showed no significant difference from that in CS subsoils. The Cr concentrations in topsoils were higher than those in subsoils over most of the area of ZJG and part of CS, suggesting that Cr accumulation had occurred in these areas and extrinsic factors have an important role controlling the distribution of Cr in topsoils. Semivariogram/cross-semivariogram was used to evaluate soil Cr spatial variability. The Cr in ZJG topsoils, ZJG subsoils, and CS topsoils had moderate spatial dependence and the Cr in CS subsoils had strong spatial dependence. Cr in ZJG subsoils had longer effective range than Cr in ZJG topsoils, suggesting that the anthropogenic factors affecting Cr distribution in ZJG topsoils; and Cr in CS topsoils had longer effective range than Cr in CS subsoils, indicating that soil formation may be the major explanation for the decrease in the variation of Cr in topsoils. A significant correlation was found between the Cr in topsoils and Cr in subsoils, indicating that natural factors also play an important role as extrinsic factors that control the distribution of Cr in topsoils. |
| 文章类型 | Article |
| 资助机构 | National Basic Research Priorities Program (973 Program) [2002CB410810]; Chinese Ministry of Science and Technology [2006DFA91940] |
| 收录类别 | SCI |
| 语种 | 英语 |
| 关键词[WOS] | HEAVY-METALS ; SOIL ; VARIABILITY ; POLLUTION ; NICKEL ; AREA |
| 研究领域[WOS] | Environmental Sciences & Ecology ; Geology ; Water Resources |
| WOS记录号 | WOS:000281668400014 |
| 引用统计 | |
| 文献类型 | 期刊论文 |
| 条目标识符 | http://ir.yic.ac.cn/handle/133337/3697 |
| 专题 | 中国科学院海岸带环境过程与生态修复重点实验室_滨海湿地实验室 |
| 作者单位 | 1.Chinese Acad Sci, Inst Soil Sci, Key Lab Soil Environm & Pollut Remediat, Nanjing 210008, Peoples R China 2.Chinese Acad Sci, Yantai Inst Coastal Zone Res Sustainable Dev, Yantai 264003, Peoples R China 3.China Acad Sci, Inst Soil Sci, State Key Lab Soil & Sustainable Agr, Nanjing 210008, Peoples R China |
| 推荐引用方式 GB/T 7714 | Wu, Chunfa,Luo, Yongming,Huang, Biao,et al. Studies on the chromium concentrations in topsoils and subsoils of two rapidly industrialized cities in the Yangtze River Delta in east China[J]. ENVIRONMENTAL EARTH SCIENCES,2010,61(6):1239-1247. |
| APA | Wu, Chunfa,Luo, Yongming,Huang, Biao,Zhang, Haibo,&Wang, Huoyan.(2010).Studies on the chromium concentrations in topsoils and subsoils of two rapidly industrialized cities in the Yangtze River Delta in east China.ENVIRONMENTAL EARTH SCIENCES,61(6),1239-1247. |
| MLA | Wu, Chunfa,et al."Studies on the chromium concentrations in topsoils and subsoils of two rapidly industrialized cities in the Yangtze River Delta in east China".ENVIRONMENTAL EARTH SCIENCES 61.6(2010):1239-1247. |
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