Single and joint effects of pesticides and mercury on soil urease

CORC > 沈阳应用生态研究所 > 中国科学院沈阳应用生态研究所 > 沈阳应用生态研究所 > 期刊论文

	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
	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.