Global agro-ecological zone V4 – Model documentation

Abstract

Expanding the number of Land Utilization Types 178Strengthen the capabilities in GAEZ to assess alternative ecosystem functions 178The inclusion of water conservation practices in dry regions 17913. Appendix 3-1 Calculation of Reference Evapotranspiration 14. Appendix 3-2 Example of Module I output at grid-cell level Basic characteristics of grid cell Agro-climatic indicators Temperature profile characteristics Reference moisture balance Daily values of reference soil moisture balance 15. Appendix 4-1 Crops and Land Utilization Types (LUTs) 16. Appendix 4-2 Parameters for calculation of water-limited yields of annual crops 17. Appendix 4-3 Temperature Profile Requirements 18. Appendix 4-7 Example of Module II output at grid-cell level Basic characteristics of grid cell Agro-climatic indicators Moisture profile characteristics Crop yields 19. Appendix 5-1 Agro-climatic constraints 20. Appendix 6-1 Combinations by crop, input level and water supply 21. Appendix 6-2 Soil Drainage Classes 22. Appendix 6-3 Soil requirements for rain-fed crops 23. Appendix 6-4 Soil requirements for irrigated crops (gravity irrigation) 24. Appendix 6-5 Soil requirements for Irrigated crops (drip irrigation) 25. Appendix 6-6 Soil suitability assessment examples for rain-fed maize 26. Appendix 6-7 Available Soil Water Capacity (AWC) by soil group and by topsoil texture for FAO'90 and FAO'74 soil classifications 27. Appendix 6-8 Terrain Slope Ratings 28. Appendix 6-9 Suitability of water-collecting sites Short-term dry-land crops (I) Short-term dry-land crops (II) Short-term dry-land crops (III) Short-term dry-land crops (IV) Wetland rice (V) Cassava, citrus, coffee, jatropha, yam and cocoyam (VI) Sugarcane, napier grass, miscanthus and switch grass (VII) Banana/plantain, oil palm, cocoa, para rubber, coconut and tea (VIII) Natural pastures and reed canary grass (IX) Olives (X) 29. Appendix 6-10 Fallow period requirements Crop groups 30. Appendix 7-1 Suitability of major crops under historical climate 31. Appendix 7-2 Crop summary tables 32. Appendix 8-1 Downscaling of area, production and yield of crops Input data used at administrative unit level Statistical and non-spatial information 279 GIS data (at 5 arc-minutes) 279 Main equations and constraints 280 Grid-cell crop share allocation 282 Solution algorithm 284 i Abbreviations AEZ Agro-Ecological Zones AWC Available soil Water Capacity BADC British Atmospheric Data Centre

Method for assessing the potential of miscanthus on marginal lands for high temperature heat demand: The case studies of France and Belgium

“…Leakey, 2009) and no published experiments exist for miscanthus. The plant available water sub-model is based on the proposed model by Campbell (1985) and used soil physical and chemical data extracted from the Harmonized World Soil Data (HWSD; Fischer et al, 2008).…”

Planning for Sustainable Cities in Africa: Experiences, Challenges and Prospects of Monitoring Geospatial Indicators

“…The length of the growing period (LGP) is defined as "the agro-climatic potential productivity of land in number of days in a year when temperature regime and moisture supply are conducive to the crop growth and development" [40]. LGP is associated with the land productivity and agroclimatic potential of land.…”

Ecologically and biophysically optimal allocation of expanded soy production in Bavaria, Germany

“…Additionally, the chosen suitability approach does not reflect a reduction of the suitability above a certain optimum. Other suitability calculations over larger spatial scales utilized temperature and precipitation with an optimum (Zabel et al, 2014) or corrected the potential maximum yield with temperature and water deficit reduction factors as well as combinations of soil type and slope (Fischer et al, 2021). However, we chose the approach that classifies temperature as the most limiting factor due to its high importance during the crucial periods of germination and flowering (Diepenbrock et al, 2016;Karges et al, 2022).…”