Ahmed, Mukhtar
- Institutionen för norrländsk jordbruksvetenskap, Sveriges lantbruksuniversitet
- Pir Mehr Ali Shah Arid Agriculture University
Sammanfattning
Nutrients are required for plant growth and development, absence or shortage of this could limit crop productivity. However, the misappropriate application of nutrients could cause environmental challenges like greenhouse gas emission, global warming, and climate change. Nutrient dynamics also seem to be affected by climate change as all the processes in which nutrients are taken up, transferred, and cycled over time in an ecosystem are linked with climatic factors directly or indirectly. Many biogeochemical models including APSIM (Agricultural Production Systems Simulator), CropSyst, CERES-EGC, DayCent, DNDC (DeNitrification DeComposition), DSSAT (Decision Support System for Agrotechnology Transfer), EPIC (Environmental Policy Integrated Climate), PaSim, RothC (Rothamsted Carbon Model), and STICS (SimulateurmulTIdisciplinaire pour les Cultures Standard, or multidisciplinary simulator for standard crops) can be used to study the nutrients dynamics which includes uptake from the soil, assimilation, and remobilization in plants. This chapter presents the application of different biogeochemical models to simulate nutrients dynamics, mainly Carbon (C), Nitrogen (N), and Phosphorus (P). Soil organic carbon (SOC) dynamics and loss of N as nitrous oxide (N2O) emission is also discussed by using models like APSIM and DNDC. Finally, life cycle assessment (LCA) is presented as a valuable tool to study environmental impacts associated with all steps of nutrients distribution among different systems. In conclusion, process-based biogeochemical cycles are valuable tools that can be used to study and manage nutrients in soil-crop system under changing climate.
Nyckelord
Biogeochemical models; Life cycle assessment; Nutrient dynamics; Soil organic carbon
Publicerad i
Titel: Building Climate Resilience in Agriculture : Theory, Practice and Future Perspective
Utgivare: Springer International Publishing
SLU författare
UKÄ forskningsämne
Jordbruksvetenskap
Markvetenskap
Publikationens identifierare
- DOI: https://doi.org/10.1007/978-3-030-79408-8_19
- ISBN: 978-3-030-79407-1
- eISBN: 978-3-030-79408-8
Permanent länk till denna sida (URI)
https://res.slu.se/id/publ/129807