Single and joint effects of pesticides and mercury on soil urease | |
Yang, CL ; Sun, TH ; He, WX ; Zhou, QX ; Chen, S | |
刊名 | JOURNAL OF ENVIRONMENTAL SCIENCES-CHINA
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2007 | |
卷号 | 19期号:2页码:210-216 |
关键词 | chlorimuron-ethyl furadan mercury soil urease combined pollution |
ISSN号 | 1001-0742 |
通讯作者 | Sun, TH, Shenyang Univ, Key Lab Environm Engn, Shenyang 110044, Peoples R China |
中文摘要 | The influence of two pesticides including chlorimuron-ethyl and furadan and mercury (Hg) on urease activity in 4 soils (meadow burozem and phaeozem) was investigated. The soils were exposed to various concentrations of the two pesticides and Hg individually and simultaneously. Results showed that there was a close relationship between urease activity and organic matter content in soil. Chlorimuron-ethyl and furadan could both activate urease in the 4 soils. The maximum increment of urease activity by chlorimuronethyl was up to 14%-18%. There was almost an equal increase (up to 13%-21%) in the urease activity by furadan. On the contrary, Hg markedly inhibited soil urease activity. A logarithmic equation was used to describe the relationship (P < 0.05) between the concentration of Hg and the activity of soil urease in the 4 tested soils. Semi-effect dose (ED50) values by the stress of Hg based on the inhibition of soil urease in the 4 soils were 88, 5.5, 24 and 20 mg/kg, respectively, according to the calculation of the corresponding equations. The interactive effect of chlorimuron-ethyl or furadan with metal Hg on soil urease was mainly synergic at the highest tested concentrations. |
学科主题 | Environmental Sciences |
收录类别 | SCI |
语种 | 英语 |
WOS记录号 | WOS:000244137800014 |
公开日期 | 2011-09-23 |
内容类型 | 期刊论文 |
源URL | [http://210.72.129.5/handle/321005/54755] ![]() |
专题 | 沈阳应用生态研究所_沈阳应用生态研究所_期刊论文 |
推荐引用方式 GB/T 7714 | Yang, CL,Sun, TH,He, WX,et al. Single and joint effects of pesticides and mercury on soil urease[J]. JOURNAL OF ENVIRONMENTAL SCIENCES-CHINA,2007,19(2):210-216. |
APA | Yang, CL,Sun, TH,He, WX,Zhou, QX,&Chen, S.(2007).Single and joint effects of pesticides and mercury on soil urease.JOURNAL OF ENVIRONMENTAL SCIENCES-CHINA,19(2),210-216. |
MLA | Yang, CL,et al."Single and joint effects of pesticides and mercury on soil urease".JOURNAL OF ENVIRONMENTAL SCIENCES-CHINA 19.2(2007):210-216. |
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