Strategies for GHG mitigation in Mediterranean cropping systems. A review

Sanz-Cobeña1, A., Lassaletta, L.2, Aguilera, E.3, del Prado, A.4, Garnier, J.5,6, Billen, G. 5,6, Iglesias, A.1, Sánchez, B.1, Guardia, G.1, Abalos, D.7, Plaza-Bonilla, D.8, Puigdueta, I1, Moral, R.9, Galán, E.4, Arriaga, H.10, Merino, P.10, Infante-Amate, J.3, Meijide, A.11, Pardo, G.4, Alvaro-Fuentes, J.12, Gilsanz, C.13, Báez, D.13, Doltra, J.14, González-Ubierna, S.15, Cayuela, M.L.16, Menendez, S.17, Diaz-Pines, E.18, Le-Noe, J.4, Quemada, M.1, Estellés, F.19, Calvet, S.19, van Grinsven, H.2, Westhoek, H.2, Sanz, M.J.6, Sánchez-Jimeno, B.20, Vallejo, A.1, Smith, P.21

1 ETSI Agronomos, Technical University of Madrid, Ciudad Universitaria, 28040 Madrid, Spain [email protected]
2 PBL Netherlands Environmental Assessment Agency, Bilthoven, PO Box 303, 3720 AH Bilthoven, the Netherlands
3 Universidad Pablo de Olavide, Ctra. de Utrera, km. 1, 41013, Sevilla, Spain
4 Basque Centre for Climate Change (BC3), Alameda Urquijo 4-4, 48008, Bilbao, Spain CNRS, UMR
5 CNRS,, UMRMetis 7619, BP105, 4 place Jussieu, 75005, Paris, France
6 UPMC, UMR Metis 7619, BP105, 4 place Jussieu, 75005, Paris, France
7 Department of Soil Quality, Wageningen University, PO Box 47, Droevendaalsesteeg 4, Wageningen 6700AA, The Netherlands
8 INRA, UMR-AGIR, 24 Chemin de Borde Rouge –Auzeville, CS 52627, 31326 Castanet-Tolosan cedex, France
9 Department of Agrochemistry and Environment, EPSO, Miguel Hernandez University, 03312 Orihuela, Alicante, Spain
10 NEIKER-Tecnalia, Conservation of Natural Resources, Bizkaia Technology Park, P. 812, 48160, Derio, Bizkaia, Spain
11 Bioclimatology, Georg-August-Universität Göttingen, Büsgenweg 2, 37077, Göttingen, Germany
12 Soil and Water Dpt, Estacion Experimental de Aula Dei (EEAD), Spanish National Research Council (CSIC,), Av. Montañana, 1005, 50059 Zaragoza, Spain
13 Mabegondo Agricultural Research Centre (CIAM-INGACAL), Xunta de Galicia, Carretera AC-542 de Betanzos a Mesón do Vento, km 7, 15318 Abegondo, A Coruña, Spain
14 Cantabrian Agricultural Research and Training Centre, CIFA, c/Héroes 2 de Mayo 27, 39600 Muriedas, Spain
15 Faculty of Pharmacy. Complutense University of Madrid. Ciudad Universitaria. Pza. Ramón y Cajal s/n, 28040 Madrid, Spain
16 Departamento de Conservación de Suelos y Aguas y Manejo de Residuos Orgánicos. CEBAS-CSIC. Campus Universitario de Espinardo. 30100 Murcia. Spain.
17 University of the Basque Country UPV/EHU, Department of Plant Biology and Ecology, Apdo. 644, 48080, Bilbao, Spain
18 Institute of Meteorology and Climate Research, Atmospheric Environmental Research. Karlsruhe Institute of Technology. Kreuzeckbahnstr. 19, 82467 Garmisch-Partenkirchen, Germany.
19 ICTA, Universitat Politècnica de València, Camino de Vera s/n 46022, Valencia
20 Dirección General de Investigación Científica y Técnica. Ministerio de Economía y Competitividad. Gobierno de España. Pº. de la Castellana, 162, 28046 Madrid, España.
21 Institute of Biological and Environmental Sciences, University of Aberdeen, 23 St Machar Drive,Aberdeen, AB24 3UU, UK

Abstract

In this review we aimed to synthetize and analyze the most promising GHGs mitigation strategies for Mediterranean cropping systems. A description of most relevant measures, based on the best crop choice and management by farmers (i.e., agronomical practices), was firstly carried out. Many of these measures can be also efficient in other climatic regions, but here we provide particular results and discussion of their efficiencies for Mediterranean cropping systems. An integrated assessment of management practices on mitigating each component of the global warming potential (N2O and CH4 emissions and C sequestration) of production systems considering potential side-effects of their implementation allowed us to propose the best strategies to abate GHG emissions, while sustaining crop yields and mitigating other sources of environmental pollution (e.g. nitrate leaching and ammonia volatilization).