O slideshow foi denunciado.

"Agroecological practices supporting provision of goods and services in agriculture "

1

Compartilhar

1 de 19
1 de 19

"Agroecological practices supporting provision of goods and services in agriculture "

1

Compartilhar

Baixar para ler offline

http://www.fao.org/europe/events/detail-events/en/c/429132/

Presentation of Alexander Wezel, from the Institut supérieur d'agriculture et d'agroalimentaire Rhône-Alpes (ISARA) and Agroecology Europe, outlining agroecological practices and their support for the provision of goods and services in agriculture. The presentation was prepared and delivered in occasion of the Regional Symposium on Agroecology in Europe and Central Asia, held in Budapest, Hungary on 23-25 November 2016.

http://www.fao.org/europe/events/detail-events/en/c/429132/

Presentation of Alexander Wezel, from the Institut supérieur d'agriculture et d'agroalimentaire Rhône-Alpes (ISARA) and Agroecology Europe, outlining agroecological practices and their support for the provision of goods and services in agriculture. The presentation was prepared and delivered in occasion of the Regional Symposium on Agroecology in Europe and Central Asia, held in Budapest, Hungary on 23-25 November 2016.

Mais Conteúdo rRelacionado

Diapositivos para si

Semelhante a "Agroecological practices supporting provision of goods and services in agriculture "

Audiolivros relacionados

Gratuito durante 30 dias do Scribd

Ver tudo

"Agroecological practices supporting provision of goods and services in agriculture "

  1. 1. Agroecological practices supporting provision of goods and services in agriculture Alexander Wezel ISARA-Lyon, France, Department of Agroecology and Environment; Agroecology Europe Regional Symposium on Agroecology for Sustainable Agriculture and Food Systems in Europe and Central Asia Budapest 2016
  2. 2. www.blog-materiel-agricole.fr Florida, USA California, USA NE Vietnam Cerrados, Brazil Which practices for which type of agriculture? SE France
  3. 3. Agroecology Scientific Discipline Movement Plot/Field approach Agroecosystem ecology Environ- mentalism Rural development Practice Technique Ecology of food system Social/Political movement for sustainable agriculture; Policy Landscape manage- ment practices (Wezel , Bellon et al. 2009, Agronomy for Sustainable Development; updated in Wezel 2017, forthcoming book: Agroecological practices for Sustainable Agriculture: Principles, Applications, and Making the Transition) Practice Main interpretations of agroecology
  4. 4. Agroecological practices - definition Agricultural practices aiming to produce significant amounts of food, which valorise in the best way ecological processes and ecosystem services in integrating them as fundamental elements in the development of the practices, and not simply relying on ordinary techniques such as chemical fertilizer and synthetic pesticide application, or technological solutions such as genetically modified organisms. (Wezel et al. 2014, Agronomy for Sustainable Development)
  5. 5. Ecosystem services as a basis for agroecological practices • nutrient cycling • biological nitrogen-fixation • natural regulation of pests • pollination • soil conservation • biodiversity conservation • carbon sequestration • water filtration and purification Services provided by ecosystems for humans:
  6. 6. Management of landscape elements Integration of semi-natural landscape elements at field, farm, and landscape scales Tillage management Direct seeding into living cover crops or mulch, Reduced tillage Crop choice, spatial distribution, and temporal succession Agroforestry, Intercropping and relay intercropping, Crop choice and rotations, Cultivar choice Crop fertilisation Split fertilisation, Organic fertilisation, Biofertilizer Scale of application of agroecological practice Field scale Cropping system scale Landscape scale Weed, pest, and disease management Natural pesticides, Biological pest control, Allelopathic plants Crop irrigation Drip irrigation Agroecological cropping practices (Wezel et al. 2014, Agronomy for Sustainable Development)
  7. 7. Some examples of agroecological cropping practices supporting diversification
  8. 8. Intercropping Pea and wheat intercropping in western France (Photo G. Corre-Hellou). Relay intercropping of wheat and undersown clover in SE France (Photo F. Boissinot). Relay intercropping of wheat and undersown lucerne in SE France.
  9. 9. Cultivar mixtures (Photo B. Rolland)
  10. 10. Diversified crop rotations Typical crop rotations in conventional cereal farms in SE France Maize Wheat Rapeseed Wheat Sunflower 4 to 6 years 3 to 4 years Irrigated crop rotation Non-irrigated crop rotation (Wezel et al. 2014, publication for FAO )
  11. 11. Diversified crop rotations Typical crop rotations in organic cereal farms in SE France. Lucerne Maize Soybean Wheat Lucerne Wheat Secondary cereal (barley, rye) Grass clover Soybean Wheat Maize 3 to 4 years Irrigated crop rotation Non-irrigated crop rotations 12 to 14 years 8 to 10 years (Wezel et al. 2014, publication for FAO )
  12. 12. Cover crops Mustard cover crop http://www.ipm.ucdavis.edu/IPMPROJECT/ 2007/strategicplan.html Mustard helps also to reduce nematode populations (biological pest control)
  13. 13. Direct seeding into cover crops (Photo J. Peigné)
  14. 14. Agroforestery Walnut wheat agroforestry system, SE France Walnut-lucerne agroforestry system, central Italy Grape vine-olive trees-walnut trees agroforestry system, central Italy
  15. 15. Integration of semi-natural landscape elements at field, farm or landscape scale Biological control and pollination, biodiversity conservation, but also erosion control, drinking water protection
  16. 16. Integration of semi-natural landscape elements at field and farm scale Direct seeding into living cover crops or mulch Natural pesticides Organic fertilisation Drip irrigation Potential of agroecological practices for the next decade Integration in today’s agriculture Crop choice and rotations Intercropping and relay intercropping Agroforestry Split fertilisation Biological pest control Allelopathic plants Reduced tillage Integration of semi-natural landscape elements at landscape scale high highmediumlow lowmedium Biofertilizer (Wezel et al. 2014) Cultivar choiceCultivar mixture Potential Diversification practices
  17. 17. Integration in today’s agriculture high highmediumlow lowmedium Potential of diversification practices for conventional/industrial agriculture Intercropping and relay intercropping • nutrient cycling • biological nitrogen-fixation • natural regulation of pests • pollination • soil conservation • biodiversity conservation • carbon sequestration • water filtration and purification Cultivar mixture Integration of semi-natural landscape elements at field and farm scale Potential Crop choice and rotations
  18. 18. Conclusions • A broad diversity of agroecological practices exists • Practices supporting diversification and having good potential to be more broadly implemented: diversified crop rotations, cover crops, cultivar mixture, intercrop.  support/valorise well ecosystem services • For some practices a high level of systems change might be necessary (e.g. intercropping, agroforestry, direct seeding) • Marketing of more diverse productions will be a challenge for many farmers • Policy framework needed supporting farmers to implement agroecological practices
  19. 19. Thank you for your attention Alexander Wezel ISARA-Lyon, France, Department of Agroecology and Environment; Agroecology Europe

×