Linking Soil Water Dynamics, Soil Organic Carbon and Greenhouse Gas Emission Under Mulch-Based Cropping System in Chernozems of Central Europe
Abstract
Mulch-based cropping systems may offer a good option for both mitigating the problem of increasing water shortages in agriculture as well as improving soil health. Retention of crop residues improves water holding capacity through increased soil organic carbon inputs which may then conserve water through reduced evaporation. Increasing concerns about global climate change, driven by rising atmospheric concentrations of greenhouse gases (GHG) such as carbon dioxide (CO2), have also enhanced the interest in soil carbon sequestration as one of the strategies to offset anthropogenic CO2 emissions through improved land use and soil management such as mulch-based cropping systems or conservation agriculture in particular. Besides CO2, nitrous oxide (N2O) plays as well a major role in the debate about climate change. Among the many soil and environmental factors, soil organic carbon is the key controller of N2O and N2 production and their ratios in the soil. A field trial with three soil cultivation techniques (conventional tillage, reduced tillage, and no-tillage) was established in 1997 at the BOKU University experimental station in Groß-Enzersdorf, Austria. This long-term study site is used to assess (1) the effects of mulch based cropping system and conservation tillage practices on sequestering C, (2) the effect of C-sequestration and conservation tillage practices on water-use efficiency (WUE), and (3) the effect of C-sequestration and conservation tillage practices on N2O and N2 emissions to investigate the relationship between soil organic C, soil water and N2O:N2 ratio.
keywords soil water dynamics soil water status Reduced Tillage
Publikationen
Assessment of carbon distribution and soil organic carbon storage in mulch-based cropping systems by using isotopic techniques
Autoren: Dercon G, Heiling M, Aigner M, Mayr L, Resch C, Bodé S, Boeckx P, Arrillaga J L, Cepuder P, Bodner G, Nolz R, Adu-Gyamfi J J, Nguyen M L Jahr: 2012
Conference & Workshop proceedings, paper, abstract
Evapotranspiration of spring barley on lysimeter- and field-scale
Autoren: Nolz R, Cepuder P Jahr: 2012
Conference & Workshop proceedings, paper, abstract
Application of ‘AquaCrop’ for spring barley under semi-arid conditions
Autoren: Schnabl T, Galgoczi N, Nolz R, Cepuder P Jahr: 2012
Conference & Workshop proceedings, paper, abstract
Determination of the vegetation cover for the model ‘AquaCrop’
Autoren: Galgoczi N, Schnabl T, Nolz R, Cepuder P Jahr: 2012
Conference & Workshop proceedings, paper, abstract
Partitioning evaporation and transpiration using isotopic and modelling approaches
Autoren: Heng L K, Nolz R, Cepuder P, Mayr L Jahr: 2012
Conference & Workshop proceedings, paper, abstract
Project staff
Reinhard Nolz
Priv.-Doz. Dipl.-Ing. Dr. Reinhard Nolz
reinhard.nolz@boku.ac.at
Tel: +43 1 47654-81552
BOKU Project Leader
28.11.2011 - 30.04.2016
Gernot Bodner
Priv.-Doz. Dr. Gernot Bodner
gernot.bodner@boku.ac.at
Tel: +43 1 47654-95115
Project Staff
28.11.2011 - 30.04.2016
Peter Cepuder
Ass.Prof.i.R. Dipl.-Ing. Dr.nat.techn. Peter Cepuder
peter.cepuder@boku.ac.at
Tel: +43 1 47654-81567
Project Staff
28.11.2011 - 30.04.2016
Josef Fürst
Ao.Univ.Prof.i.R. Dipl.-Ing. Dr.nat.techn. Josef Fürst
josef.fuerst@boku.ac.at
Project Staff
10.12.2015 - 30.04.2016
Peter Liebhard
Ao.Univ.Prof. Dipl.-Ing. Dr.nat.techn. Peter Liebhard
peter.liebhard@boku.ac.at
Project Staff
28.11.2011 - 30.04.2016
BOKU partners
External partners
IAEA
none
partner
IAEA-Laboratory Seibersdorf
none
partner