<abstract xml:lang="en" xmlns="http://www.w3.org/1999/xhtml"><p>Climate change impacts on soil organic carbon sequestration rate were simulated by agroecological model DAISY. Daily meteorological data for the Danubian Lowland up to 2100 were generated according to emission scenarios SRES A2 and B1 using general circulation model CGCM3.1. Effect of gradual increase of CO<sub>2</sub> concentration in the atmosphere was taken into account. Various crop rotations as well as various management practices including irrigation and crop residuals incorporation were considered in three variants: i/ rainfed, residuals not incorporated, ii/ irrigated, residuals not incorporated, iii/ summer crops irrigated and residuals incorporated. Modelling outputs confirm that conventional rainfed agro-technical practices without incorporation of crop residues resulted to significant loss of soil organic carbon in soil profile towards more distanced time slices. The irrigation and the incorporation of crop residuals including stems and leaves can reduce soil organic carbon losses. If it is combined with proper crop rotation the soil organic carbon stock in soil profile can even increase.</p></abstract>

Climate change impacts on soil organic carbon sequestration rate were simulated by agroecological model DAISY. Daily meteorological data for the Danubian Lowland up to 2100 were generated according to emission scenarios SRES A2 and B1 using general circulation model CGCM3.1. Effect of gradual increase of CO2 concentration in the atmosphere was taken into account. Various crop rotations as well as various management practices including irrigation and crop residuals incorporation were considered in three variants: i/ rainfed, residuals not incorporated, ii/ irrigated, residuals not incorporated, iii/ summer crops irrigated and residuals incorporated. Modelling outputs confirm that conventional rainfed agro-technical practices without incorporation of crop residues resulted to significant loss of soil organic carbon in soil profile towards more distanced time slices. The irrigation and the incorporation of crop residuals including stems and leaves can reduce soil organic carbon losses. If it is combined with proper crop rotation the soil organic carbon stock in soil profile can even increase.

Evaluation of Adaptive Measures to Reduce Climate Change Impact on Soil Organic Carbon Stock In Žitný Ostrov Region

Soil Science and Conservation Research Institute, Bratislava

Slovak University of Agriculture in Nitra

Agriculture (Pol'nohospodárstvo)

Climate change impacts on soil organic carbon sequestration rate were simulated by agroecological model DAISY. Daily meteorological data for the Danubian...

Evaluation of Adaptive Measures to Reduce Climate Change Impact on Soil Organic Carbon Stock In Žitný Ostrov Region

Publié en ligne: 18 oct. 2011

Pages: 85 - 95

DOI: https://doi.org/10.2478/v10207-011-0009-9

Mots clés
soil organic carbon, climate change, adaptive measures, crop residuals, irrigation

This content is open access.

Evaluation of Adaptive Measures to Reduce Climate Change Impact on Soil Organic Carbon Stock In Žitný Ostrov Region

Publié en ligne: 18 oct. 2011

Pages: 85 - 95

DOI: https://doi.org/10.2478/v10207-011-0009-9

Mots cléssoil organic carbon, climate change, adaptive measures, crop residuals, irrigation

This content is open access.

Mots clés
soil organic carbon, climate change, adaptive measures, crop residuals, irrigation