American Geophysical Union Become an AGU Member
Subscribe to AGU Journals		 AGU Home AGU Publications

Read Full Article (file size: 152832 bytes)    Cited by

GLOBAL BIOGEOCHEMICAL CYCLES, VOL. 16, NO. 4, 1058, doi:10.1029/2001GB001811, 2002

Emissions of N2O and NO from fertilized fields: Summary of available measurement data

A. F. Bouwman

National Institute for Public Health and the Environment, Bilthoven, Netherlands


L. J. M. Boumans

National Institute for Public Health and the Environment, Bilthoven, Netherlands


N. H. Batjes

International Soil Reference and Information Centre (ISRIC), Wageningen, Netherlands


Abstract

Information from 846 N2O emission measurements in agricultural fields and 99 measurements for NO emissions was summarized to assess the influence of various factors regulating emissions from mineral soils. The data indicate that there is a strong increase of both N2O and NO emissions accompanying N application rates, and soils with high organic-C content show higher emissions than less fertile soils. A fine soil texture, restricted drainage, and neutral to slightly acidic conditions favor N2O emission, while (though not significant) a good soil drainage, coarse texture, and neutral soil reaction favor NO emission. Fertilizer type and crop type are important factors for N2O but not for NO, while the fertilizer application mode has a significant influence on NO only. Regarding the measurements, longer measurement periods yield more of the fertilization effect on N2O and NO emissions, and intensive measurements (≥1 per day) yield lower emissions than less intensive measurements (2–3 per week). The available data can be used to develop simple models based on the major regulating factors which describe the spatial variability of emissions of N2O and NO with less uncertainty than emission factor approaches based on country N inputs, as currently used in national emission inventories.

Published 18 October 2002.

Index Terms: 0315 Atmospheric Composition and Structure: Biosphere/atmosphere interactions; 0365 Atmospheric Composition and Structure: Troposphere—composition and chemistry; 1615 Global Change: Biogeochemical processes (4805).

Read Full Article (file size: 152832 bytes)    Cited by

Citation: Bouwman, A. F., L. J. M. Boumans, and N. H. Batjes (2002), Emissions of N2O and NO from fertilized fields: Summary of available measurement data, Global Biogeochem. Cycles, 16(4), 1058, doi:10.1029/2001GB001811.