Mapping Soil Properties of Africa at 250 m Resolution: Random Forests Significantly Improve Current Predictions.

ABSTRACT: 80% of arable land in Africa has low soil fertility and suffers from physical soil problems. Additionally, significant amounts of nutrients are lost every year due to unsustainable soil management practices. This is partially the result of insufficient use of soil management knowledge. To help bridge the soil information gap in Africa, the Africa Soil Information Service (AfSIS) project was established in 2008. Over the period 2008-2014, the AfSIS project compiled two point data sets: the Africa Soil Profiles (legacy) database and the AfSIS Sentinel Site database. These data sets contain over 28 thousand sampling locations and represent the most comprehensive soil sample data sets of the African continent to date. Utilizing these point data sets in combination with a large number of covari

SUBMITTER: Hengl T 

PROVIDER: S-EPMC4482144 | biostudies-literature | 2015

REPOSITORIES: biostudies-literature