期刊名称：EQA - International Journal of Environmental Quality
印刷版ISSN：2281-4485
出版年度：2011
卷号：7
期号：7
页码：33-40
DOI：10.6092/issn.2281-4485/3831
语种：English
出版社：Alma Mater Studiorum - University of Bologna
摘要：The aim of this work was to investigate the effects of different organic residues on soil fertility and climate change, through the evaluation of soil organic matter mineralisation, greenhouse gas emission, nutrient availability and soil microbial biomass content and activity. A degraded agricultural soil was amended with three different organic residues (pig slurry digestate, rapeseed meal, and compost) at three different doses (0.1, 0.25 and 0.5% w/w) and incubated for 30 days at 20 ºC. During incubation, soil CO 2 and N 2 O emissions, K 2 SO 4 extractable organic C, N, NH 4 + , NO 3 - and P, soil microbial biomass and some enzymatic activities were determined. Results obtained showed that rapeseed meal and pig slurry are best suited to improve soil chemical and biological fertility, while compost is more appropriate for the enhancement of soil organic matter content and to promote soil C sequestration.
其他摘要：The aim of this work was to investigate the effects of different organic residues on soil fertility and climate change, through the evaluation of soil organic matter mineralisation, greenhouse gas emission, nutrient availability and soil microbial biomass content and activity. A degraded agricultural soil was amended with three different organic residues (pig slurry digestate, rapeseed meal, and compost) at three different doses (0.1, 0.25 and 0.5% w/w) and incubated for 30 days at 20 ºC. During incubation, soil CO2 and N2O emissions, K2SO4 extractable organic C, N, NH4+, NO3- and P, soil microbial biomass and some enzymatic activities were determined. Results obtained showed that rapeseed meal and pig slurry are best suited to improve soil chemical and biological fertility, while compost is more appropriate for the enhancement of soil organic matter content and to promote soil C sequestration.
关键词：organic residues;mineralisation;C sequestration;N2O emissions;soil organic matter;résidus organiques;minéralisation;stockage de C;emissions de N2O;matière organique du sol;residui organici;mineralizzazione;sequestro di C;emissioni di N2O;sostanza organica del suolo
其他关键词：organic residues; mineralisation; C sequestration; N2O emissions; soil organic matter
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