Spatial predictions of soil macro and micro-nutrient content across Sub-Saharan Africa at 250 m spatial resolution and for 0–30 cm depth interval are presented...
There is a need for up-to-date assessments and maps of soil properties and land health at scales relevant for decision-making and management, including for properties that are dynamic and hence change in response to management.
The ongoing debate about improving food security in Sub-Saharan Africa (SSA) is about how to enrich its soils. A core challenge within the risk-averse smallholder farming systems prevailing in SSA is to judiciously combine mineral with bio-organic nutrient applications and close nutrient cycles to improve soil health, hence crop productivity, with high and preferably known yearly likeliness of direct return on investment.
We present SoilGrids1km — a global 3D soil information system at 1 km resolution — containing spatial predictions for a selection of soil properties (at six standard depths): soil organic carbon (g kg−1), soil pH, sand, silt and clay fractions (%), bulk density (kg m−3), cation-exchange capacity (cmol+/kg), coarse fragments (%), soil organic carbon stock (t ha−1), depth to bedrock (cm), World Reference Base soil groups, and USDA Soil Taxonomy suborders.
Africa Soil Profiles Database: a compilation of georeferenced and standardised legacy soil profile data for Sub-Saharan Africa
Africa Soil Profiles Database: a compilation of georeferenced and standardised legacy soil profile data for Sub-Saharan AfricaMonica Cross 2018-04-26T12:34:20+00:00
The compilation and publication of the Africa Soil Profiles Database is at the heart of ISRIC’s mandate, which is to serve the international community as custodian of global soil information and to increase awareness and understanding of soils in major global issues.