Table 1 Key characteristics of the scenarios analysed in this study
From: Leveraging circular nutrients to improve the sustainability of peri-urban agriculture
Land cover map | System | Scenario Name | Nutrient Supply (% of total supply current/ projected peri-UA areas) | LCI dataset | Prospective scenarios for pLCI databases | Year | ||
|---|---|---|---|---|---|---|---|---|
Nitrogen | Phosphorus | Potassium | ||||||
Current Projec-ted | Linear system | MinFert | market for inorganic nitrogen fertiliser, as Na (95%/96%) + N fixation (5%/4%) | market for inorganic phosphorus fertiliser, as P2O5a (100%) | market for inorganic potassium fertiliser, as K2Oa (100%) | Current - v3.9.1 cut-off Prospective - v3.9.1 cut-off | Prospective BAU (IMAGE_SSP2_RCP6) Prospective 2-degree (IMAGE_SSP2_RCP2.6) | 2015 2050 |
Circular systems | Struvite | Struvite (5%/4%) + mineral fertilizer (90%/92%) + N fixation (5%/4%) | Struvite (100%)b | Mineral fertilizer (100%) | ||||
Ammonium Salts+ Struvite | Circular ammonium salts (38%/32%)b + Struvite (5%/4%) + mineral fertilizer (54%/60%) + N fixation (3%/4%) | Struvite (100%)b | Mineral Fertilizer (100%) | |||||
Compost | OMSW compost (3%/3%)c + mineral fertilizer (92%/93%) + N fixation (5%/4%) | OMSW compost (43%/ 37%)c + mineral fertilizer (57%/ 63%) | OMSW compost (6%//5%)c + mineral fertilizer (94%/95%) | |||||
