Field and laboratory studies of N_2O turnover in the saturated zone of hydromorphic soils of Northwest Germany. Ⅱ: Laboratory incubations to determine total denitrification and N_2O production

机译：德国西北部水质土壤饱和区N_2O转化的田间和实验室研究。 Ⅱ：通过实验室培养确定总反硝化和N_2O产生

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Groundwater N_2O concentrations and emissions to the atmosphere are closely related to denitrification dynamics in the saturated zone. In the shallow groundwater of hydromorphic soils redox conditions are generally favourable for denitrification which is often caused by the presence of fossil organic carbon and reduced sulphur compounds in the subsoil. The contribution of theses systems to N_2O emission to the atmosphere is poorly understood. The objective of this study was to determine the potential of hydromorphic soils to emit N_2O to the atmosphere. Samples from the saturated zone of hydromorphic soils were analyzed for denitrification, N_2O production and controlling parameters in the laboratory. NO_3- and N_2O-concentrations of the shallow ground water were measured in the field.

机译：地下水中N_2O的浓度和向大气的排放与饱和区的反硝化动力学密切相关。在水状土壤的浅层地下水中，氧化还原条件通常有利于反硝化作用，这通常是由于土壤中存在化石有机碳和还原的硫化合物所致。这些系统对向大气中N_2O排放的贡献知之甚少。这项研究的目的是确定水晶土壤向大气排放N_2O的潜力。在实验室中，对来自水溶土壤饱和区的样品进行了反硝化，N_2O产生和控制参数的分析。在野外测量了浅层地下水的NO_3-和N_2O浓度。

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来源
《Third International Symposium on Non-Co_2 Greenhouse Gases: Scientific Understanding, Control Options and Policy Aspects Jan 21-23, 2002 Maastricht, The Netherlands》|2002年|p.199-200|共2页
会议地点 Maastricht(NL)
作者
O. Mehranfar; R. Well;
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作者单位

Institute of Soil Science, University of Goettingen, Germany;

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会议组织
原文格式 PDF
正文语种 eng
中图分类石油、天然气工业;
关键词
nitrous oxide; shallow ground water; denitrification; hydromorphic soils;

机译：一氧化二氮;浅层地下水;硝化作用;亲水性土壤;

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Field and laboratory studies of N_2O turnover in the saturated zone of hydromorphic soils of Northwest Germany. Ⅱ: Laboratory incubations to determine total denitrification and N_2O production

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