New agroforestry on European ecosystem service deficit farmland can compensate up to 43% of agricultural GHG emissions

Autor: Herzog, F., Kay, S., Roces-Diaz, J., Crous-Durán, J., Giannitsopoulos, M., Graves, A., Den Herder, M., Moreno, G., Mosquera-Losada, R., Pantera, A., Palma J., H., Paracchini, M.-L., Rega, C., Rolo, V., Rosati, A., Smith J. Szerencsits, E.
Jazyk: angličtina
Rok vydání: 2019
Předmět:
DOI: 10.5281/zenodo.3233704
Popis: Landscapes with a high share of agroforestry provide more regulating ecosystem services than landscapes dominated by conventional agriculture (Kay et al. 2018). Yet, which type of agroforestry to recommend depends on local and regional conditions and there may be regions where there is a higher need for agroforestry than others. We identified European farmlands where several ecosystem service (ES) deficits occur at the same time (soil erosion, low soil organic carbon and biodiversity, nitrate surplus, irrigation, low pest control and pollination potential). Almost ten percent of arable and grassland had more than five and four stacked deficits, respectively (Figure 1). In those areas, the introduction of agroforestry can help to reduce ES deficits. We propose 64 candidate agroforestry systems, which are locally adapted and attractive for farmers. They range from lines of trees around arable plots to relatively densely planted silvo-arable and silvo-pastoral systems. As an example for the reduction of ES deficits, we modelled the potential carbon sequestration of each candidate agroforestry system. The conversion of the 140,000 sqkm of priority farmland to agroforestry would sequester - depending mainly on the tree species and density - between 2 and 64 106 t of carbon per year in above and below ground biomass. This would correspond to up to 43 percent of the European greenhouse gas emissions attributed to the agricultural sector.
Databáze: OpenAIRE