Reyes F., Gosme M., Wolz K.J., Lecomte I., Dupraz C. (2021). Alley cropping mitigates the impacts of climate change on a wheat crop in a Mediterranean environment: a biophysical model-based assessment. Agriculture, 01/04/2021, vol. 11, n. 4, p. 1-18.
https://doi.org/10.3390/agriculture11040356
https://doi.org/10.3390/agriculture11040356
Titre : | Alley cropping mitigates the impacts of climate change on a wheat crop in a Mediterranean environment: a biophysical model-based assessment (2021) |
Auteurs : | F. Reyes ; M. Gosme ; K.J. Wolz ; I. Lecomte ; C. Dupraz |
Type de document : | Article |
Dans : | Agriculture (vol. 11, n. 4, April 2021) |
Article en page(s) : | p. 1-18 |
Langues : | Anglais |
Langues du résumé : | Anglais |
Catégories : |
Catégories principales 07 - ENVIRONNEMENT ; 7.6 - Changement ClimatiqueThésaurus IAMM MODE DE CULTURE ; CHANGEMENT CLIMATIQUE ; BLE DUR ; AGROFORESTERIE ; SYSTEME SYLVOPASTORAL ; STRESS DU A LA SECHERESSE ; STRESS THERMIQUE ; TENEUR EN AZOTE ; RENDEMENT DES CULTURES ; REGION MEDITERRANEENNE ; FRANCE |
Résumé : | Introduction: Climate change (CC) and the increased occurrence of extreme climatic events pose a serious threat to crop yields and their stability worldwide. This study analyzed the CC mitigation potential of an alley cropping system on crop physiological stresses and growth as compared to a monoculture system. Materials and Methods: Growth of winter durum wheat, cultivated alone (agriculture) and in combination with hybrid walnut (agroforestry), was simulated with the Hi-sAFe agroforestry model, as driven by business-as-usual Intergovernmental Panel on Climate Change (IPCC) projections, split into three scenarios, representing Past (19511990), Present (19912030), and Future (20312070) climatic conditions. Crop growth and the occurrence of thermal, nitrogen, and water stresses were analyzed. Results: Cold-related stresses were modest in Past and almost disappeared over time. Heat, drought, and nitrogen stresses increased about twofold from Past to Future, but were reduced by 2035% in agroforestry, already with medium-sized trees (diameter at breast height (DBH) of about 1015 cm). Crop yields in agriculture increased from Past to the end of Present and then remained stable. This moderately decreased with tree age in agroforestry (especially in Future). Discussion: The impact of CC on the crop was buffered in agroforestry, especially for the most extreme climatic events. The mitigation of crop microclimate and the increased stability of crop yields highlight the potential of agroforestry as a CC adaptation strategy. |
Cote : | En ligne |
URL / DOI : | https://doi.org/10.3390/agriculture11040356 |