Alterations in soil microbial activity and N-transformation processes due to sulfadiazine loads in pig-manure
Alterations in soil microbial activity and N-transformation processes due to sulfadiazine loads in pig-manure
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DOI：
10.1016/j.envpol.2007.08.020
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发表时间：
2008-05-01
影响因子：
8.9
通讯作者：
Schloter, Michael
中科院分区：
文献类型：
--
作者：
Kotzerke, Anja;Sharma, Shilpi;Schloter, Michael
大多数兽药通过施用粪肥进入环境。然而，目前尚不清楚这些物质如何与土壤生物群相互作用。因此，本研究的目的是研究含有不同浓度的抗生素磺胺嘧啶（SDZ）的粪肥对土壤微生物群落的影响。结果表明，粪肥单独对微生物活性具有刺激作用。只有潜在的硝化作用是负面影响的有机肥的应用。添加SDZ的粪肥减少微生物活性。根据SDZ的浓度，活性水平的范围内的控制土壤没有粪肥的应用。此外，选择过程中的氮周转产生负面影响，除了SDZ的粪便，硝化作用是唯一的例外。在施用含或不含SDZ的粪肥后4天内，效果是可见的，并且与抗生素的生物利用度相关。(C)2007爱思唯尔有限公司保留所有权利。
Most veterinary drugs enter the environment via manure application. However, it is unclear how these substances interact with soil biota. Therefore, it was the aim of the present study to investigate the effects of manure containing different concentrations of the antibiotic sulfadiazine (SDZ) on the soil microbial communities. It was shown that manure alone has a stimulating effect on microbial activity. Only potential nitrification was negatively influenced by manure application. The addition of SDZ to the manure reduced microbial activity. Depending on the SDZ concentration, levels of activity were in the range of the control soil without manure application. Also, selected processes in nitrogen turnover were negatively influenced by the addition of SDZ to the manure, with nitrification being the only exception. The effects were visible for up to 4 days after application of the manure with or without SDZ and were correlated with the bioavailability of the antibiotic. (C) 2007 Elsevier Ltd. All rights reserved.