SwePub
Sök i SwePub databas

  Utökad sökning

Träfflista för sökning "WFRF:(Van Ittersum Martin) "

Sökning: WFRF:(Van Ittersum Martin)

  • Resultat 11-12 av 12
Sortera/gruppera träfflistan
   
NumreringReferensOmslagsbildHitta
11.
  • van Ittersum, Martin (författare)
  • Intensifying rice production to reduce imports and land conversion in Africa
  • 2024
  • Ingår i: Nature Communications. - 2041-1723. ; 15
  • Tidskriftsartikel (refereegranskat)abstract
    • Africa produces around 60% of the rice the continent consumes, relying heavily on rice imports to fulfill the rest of the domestic demand. Over the past 10 years, the rice-agricultural area increased nearly 40%, while average yield remained stagnant. Here we used a process-based crop simulation modelling approach combined with local weather, soil, and management datasets to evaluate the potential to increase rice production on existing cropland area in Africa and assess cropland expansion and rice imports by year 2050 for different scenarios of yield intensification. We find that Africa can avoid further increases in rice imports, and even reduce them, through a combination of cropland expansion following the historical trend together with closure of the current exploitable yield gap by half or more. Without substantial increase in rice yields, meeting future rice demand will require larger rice imports and/or land conversion than now.Here the authors demonstrate that cropland expansion following the historical trend together with closing the current exploitable yield gap by half or more across Africa reduces the continent's reliance on land conversions and imports by 2050.
  •  
12.
  • van Ittersum, Martin (författare)
  • Interventions to increase circularity and reduce environmental impacts in food systems
  • 2024
  • Ingår i: AMBIO: A Journal of the Human Environment. - 0044-7447 .- 1654-7209. ; 53, s. 359-375
  • Tidskriftsartikel (refereegranskat)abstract
    • Applying specific circularity interventions to the food system may have environmental benefits. Using an iterative linear food system optimisation model (FOODSOM), we assess how changes in human diets, imports and exports, and the utilisation of waste streams impact land use and greenhouse gas emissions (GHG). After including these circularity principles, land use and GHG emissions were on average 40% and 68% lower than in the current food system, primarily driven by a reduction in production volumes and a shift towards feeding the domestic population. Shifting from the current diet to a circular diet decreased land use with 43% and GHG emissions with 52%. Allowing up to half of each nutrient in the human diet to be imported, while balancing imports with equal exports in terms of nitrogen, phosphorus and potassium, also decreased land use (up to 34%) and GHG emissions (up to 26%) compared to no imported food. Our findings show that circularity interventions should not be implemented mutually exclusively; by combining a circular diet with imported food and fully utilising waste streams, the lowest land use and GHG emissions can be realised.
  •  
Skapa referenser, mejla, bekava och länka
  • Resultat 11-12 av 12

Kungliga biblioteket hanterar dina personuppgifter i enlighet med EU:s dataskyddsförordning (2018), GDPR. Läs mer om hur det funkar här.
Så här hanterar KB dina uppgifter vid användning av denna tjänst.

 
pil uppåt Stäng

Kopiera och spara länken för att återkomma till aktuell vy