Aguilera, Eduardo; Lassaletta, Luis; Gattinger, Andreas and Gimeno, Benjamín S. (2013) Managing soil carbon for climate change mitigation and adaptation in Mediterranean cropping systems: A meta-analysis. Agriculture, Ecosystems & Environment, 168, pp. 25-36.
PDF
- English
Limited to [Depositor and staff only] 177kB |
Document available online at: http://www.sciencedirect.com/science/article/pii/S0167880913000303
Summary
Mediterranean croplands are seasonally dry agroecosystems with low soil organic carbon (SOC) content and high risk of land degradation and desertification. The increase in SOC is of special interest in these systems, as it can help to build resilience for climate change adaptation while contributing to mitigate global warming through the sequestration of atmospheric carbon (C). We compared SOC change and C sequestration under a number of recommended management practices (RMPs) with neighboring conventional plots under Mediterranean climate (174 data sets from 79 references). The highest response in C sequestration was achieved by those practices applying largest amounts of C inputs (land treatment and organic amendments). Conservation tillage practices (no-tillage and reduced tillage) induced lower effect sizes but significantly promoted C sequestration, whereas no effect and negative net sequestration rates were observed for slurry applications and unfertilized treatments, respectively. Practices combining external organic amendments with cover crops or conservation tillage (combined management practices and organic management) showed very good performance in C sequestration. We studied separately the changes in SOC under organic management, with 80 data sets from 30 references. The results also suggest that the degree of intensification in C input rate is the main driver behind the relative C accumulation in organic treatments. Thus, highest net C sequestration rates were observed in most eco-intensive groups, such as “irrigated”, “horticulture” and controlled experiments (“plot scale”).
EPrint Type: | Journal paper |
---|---|
Keywords: | Soil organic carbon, Carbon Sequestration, Mediterranean, Tillage, Organic amendments, Organic farming, Climate Impact of Organic Agriculture, Klimawandel und biologischer Landbau |
Agrovoc keywords: | Language Value URI English Soil organic carbon UNSPECIFIED English carbon sequestration http://aims.fao.org/aos/agrovoc/c_331583 English Mediterranean UNSPECIFIED English Tillage http://aims.fao.org/aos/agrovoc/c_7771 English Organic amendments http://aims.fao.org/aos/agrovoc/c_12965 English Organic farming UNSPECIFIED |
Subjects: | Environmental aspects > Air and water emissions Soil |
Research affiliation: | Spain > University of Sevilla Switzerland > FiBL - Research Institute of Organic Agriculture Switzerland > Soil Switzerland > FiBL - Research Institute of Organic Agriculture Switzerland > Sustainability > Climate Spain > Other organizations France > Other organizations |
DOI: | 10.1016/j.agee.2013.02.003 |
Deposited By: | Forschungsinstitut für biologischen Landbau, FiBL |
ID Code: | 26363 |
Deposited On: | 12 Jun 2014 08:59 |
Last Modified: | 05 Jan 2021 10:59 |
Document Language: | English |
Status: | Published |
Refereed: | Peer-reviewed and accepted |
Repository Staff Only: item control page