Effects of lanthanum on dehydrogenase activity and carbon dioxide evolution in a Haplic Acrisol
文献类型：期刊论文
| 作者 | Chu, HY; Zhu, JG; Xie, ZB; Zhang, HY; Cao, ZH; Li, ZG |
| 刊名 | AUSTRALIAN JOURNAL OF SOIL RESEARCH
 |
| 出版日期 | 2003 |
| 卷号 | 41期号:4页码:731-739 |
| 关键词 | rare earth elements soil pH extractability |
| ISSN号 | 0004-9573 |
| DOI | 10.1071/SR02048 |
| 通讯作者 | Chu, HY() |
| 英文摘要 | Rare earth elements (REEs) are applied widely to increase crop production in China but less attention has been paid to the principle adverse effects of the accumulation of REEs in soils. In this paper we studied the effects of lanthanum ( La) on two indicators of microbial activity: dehydrogenase activity and CO2 evolution. The soil was collected from crop land of the Chinese Academy of Sciences' Red Soil Ecological Experimental Station. Application of La decreased soil pH and there were significant negative correlations between soil pH and added La. Significant positive correlations were also observed between 0.05 M HCl extractable La and added La, indicating that exogenous La was highly available in soil. Additions of La decreased soil dehydrogenase activity and the recorded maximum decrease was 64% after 1 day of incubation with an application of 1000 mg La/kg dry soil. The inhibition of soil dehydrogenase activity by La was gradually alleviated on prolonged incubation time. Addition of La at low concentrations slightly increased soil CO2 evolution but decreased it if at greater concentrations. The recorded maximum decrease in soil CO2 evolution was 33% after 56 days of incubation with an application of 1000 mg La/kg dry soil. The results in this paper indicated that agricultural use of REEs such as La at excessive levels would produce harmful effects to soil microbial activity and microbially mediated soil function. It is likely that change in soil dehydrogenase activity can be used as a sensitive indicator in assessing the level of REEs pollution in soil. |
| 收录类别 | SCI |
| WOS关键词 | RARE-EARTH ELEMENTS ; MICROBIAL ACTIVITY ; RED SOIL ; CONTAMINATED SOILS ; PLANT-GROWTH ; HEAVY-METALS ; BIOMASS ; CORN ; NITRIFICATION ; NITROGEN |
| WOS研究方向 | Agriculture |
| WOS类目 | Soil Science |
| 语种 | 英语 |
| WOS记录号 | WOS:000184275500010 |
| 出版者 | C S I R O PUBLISHING |
| URI标识 | http://www.irgrid.ac.cn/handle/1471x/2559223 |
| 专题 | 南京土壤研究所 |
| 通讯作者 | Chu, HY |
| 作者单位 | Chinese Acad Sci, Inst Soil Sci, Lab Mat Cycling Pedosphere, Nanjing 210008, Peoples R China |
| 推荐引用方式 GB/T 7714 | Chu, HY,Zhu, JG,Xie, ZB,et al. Effects of lanthanum on dehydrogenase activity and carbon dioxide evolution in a Haplic Acrisol[J]. AUSTRALIAN JOURNAL OF SOIL RESEARCH,2003,41(4):731-739. |
| APA | Chu, HY,Zhu, JG,Xie, ZB,Zhang, HY,Cao, ZH,&Li, ZG.(2003).Effects of lanthanum on dehydrogenase activity and carbon dioxide evolution in a Haplic Acrisol.AUSTRALIAN JOURNAL OF SOIL RESEARCH,41(4),731-739. |
| MLA | Chu, HY,et al."Effects of lanthanum on dehydrogenase activity and carbon dioxide evolution in a Haplic Acrisol".AUSTRALIAN JOURNAL OF SOIL RESEARCH 41.4(2003):731-739. |
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来源：南京土壤研究所
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