Effects of nitrogen fertilization and irrigation on N2O emissions from a sandy soil in Germany

被引：9

作者：

Trost, Benjamin ^{[1
]}

Prochnow, Annette ^{[1
,2
]}

Baumecker, Michael ^{[3
]}

Meyer-Aurich, Andreas ^{[1
]}

Drastig, Katrin ^{[1
]}

Ellmer, Frank ^{[4
]}

机构：

[1] Leibniz Inst Agr Engn Potsdam Bornim, Dept Technol Assessment & Subst Cycles, D-14469 Potsdam, Germany

[2] Humboldt Univ, Chair Utilizat Strategies Bioresources, Fac Life Sci, Dept Strategies Using Bioresources, D-10099 Berlin, Germany

[3] Humboldt Univ, Field Study & Res Stn, Fac Life Sci, D-14974 Thyrow, Germany

[4] Humboldt Univ, Div Agron & Crop Sci, Fac Life Sci, D-14195 Berlin, Germany

来源：

ARCHIVES OF AGRONOMY AND SOIL SCIENCE | 2015年 / 61卷 / 05期

关键词：

N2O emissions; sandy soil; irrigation; wheat; nitrogen fertilization; OXIDE EMISSIONS; CARBON-DIOXIDE; FLUXES; THAW; MANAGEMENT; METHANE; CLIMATE; FIELDS; CH4; CO2;

D O I：

10.1080/03650340.2014.946912

中图分类号：

S3 [农学（农艺学）];

学科分类号：

0901 ;

摘要：

The aim of this study was to investigate the effect of supplemental irrigation on the amount of N2O emissions on a sandy soil in north-east Germany. N2O flux measurements were carried out over two vegetation periods from the emergence of plants to harvest. The level of N2O emissions was low, which is typical for sandy soils in north-east Germany. In both periods, irrigation had no increasing effect on N2O emissions. Relevant factors were the soil temperature and the soil water-filled pore space (WFPS), which were mainly influenced by weather conditions. This may indicate that nitrification was the main source of N2O emissions. In conclusion, this study has confirmed that sandy soils under weather conditions of north-east Germany generally have a very low potential for N2O emissions.

引用

页码：569 / 580

页数：12