Changes in functional diversity of the soil microbial community in a heterogeneous sandy soil after long-term fertilization with cattle manure and mineral fertilizer
Changes in functional diversity of the soil microbial community in a heterogeneous sandy soil after long-term fertilization with cattle manure and mineral fertilizer
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DOI：
10.1016/j.apsoil.2012.09.011
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发表时间：
2013-01-01
影响因子：
4.8
通讯作者：
Joergensen, Rainer Georg
中科院分区：
文献类型：
--
作者：
Sradnick, Andre;Murugan, Rajasekaran;Joergensen, Rainer Georg
在德国达姆施塔特的长期施肥试验中，研究了不使用和使用生物动力制剂的牛对土壤微生物群落功能多样性的影响，并与低和高施用量的矿物施肥（+秸秆掺入）进行比较。多重 SIR 方法用于研究表层耕地土壤 (0-5 cm) 中 17 种单独基质的呼吸反应。多变量分析使得主要根据碳水化合物和氨基酸显着区分矿物肥料和粪肥处理成为可能。对提取判别函数的相关分析表明，矿肥和粪肥处理之间土壤微生物分解代谢谱的变化部分是由土壤pH和土壤有机碳含量的差异引起的。与施用农家肥相比，长期施用秸秆还田矿肥，导致群落水平生理特征差异引起的土壤微生物功能多样性下降。 (C) 2012 Elsevier B.V. 保留所有权利。
The effects of cattle without and with biodynamic preparations on functional diversity of the soil microbial community were investigated in comparison with mineral fertilization (+ straw incorporation) at low and high application rates to a sandy soil of the long-term fertilization trial in Darmstadt, Germany. The multi-SIR method was used for investigating the respiratory response to 17 individual substrates in surface arable soils (0-5 cm). Multivariate analysis made it possible to significantly separate mineral fertilizer and manure treatments, mainly on the basis of carbohydrates and amino acids. Correlation analysis of the extracted discriminant function showed that the changes in the catabolic profiles of soil microorganisms between the mineral fertilizer and manure treatments were partly caused by differences in soil pH and soil organic C content. The functional diversity of soil microorganisms caused by differences in the community level physiological profile decreased as a result of long-term mineral fertilization with straw incorporation in comparison with farmyard manure application. (C) 2012 Elsevier B.V. All rights reserved.