Development of a Soil Organic Carbon Baseline for Otjozondjupa, Namibia

R. Nijbroek, B. Kempen, J. Mutua, M. Soderstrom, K. Piikki, S. Hengari, A. Andreas

Research output: Chapter in Book/Report/Conference proceedingConference paperAcademic

Abstract

Land Degradation Neutrality (LDN) has been piloted in 14 countries and will be scaled up to over 120 countries. As a LDN pilot country, Namibia developed sub-national LDN baselines in Otjozondjupa Region. In addition to the three LDN indicators (soil organic carbon, land productivity and land cover change), Namibia also regards bush encroachment as an important form of land degradation. We collected 219 soil profiles and used Random Forest modelling to develop the soil organic carbon stock baseline. Values range between 0.53 and 4.27 kg/m2 in the sandy Otjozondjupa soils. LDN baselines were integrated into other national planning processes to add value to LDN products. Analyses of the relationship between soil carbon and land cover change, especially from grassland to bushland, increased the usefulness of soil carbon maps for the Integrated Regional Land Use Planning process. Local ownership of LDN baseline development, from data collection to digital soil mapping, was crucial for local stakeholders.
Original languageEnglish
Title of host publicationProceedings of the Global Symposium on Soil Organic Carbon 2017
PublisherFAO
Pages142-150
ISBN (Electronic)9789251098387
Publication statusPublished - 2017
EventGlobal Symposium on Soil Organic Carbon - FAO, Rome, Italy
Duration: 21 Mar 201723 Mar 2017

Conference

ConferenceGlobal Symposium on Soil Organic Carbon
CountryItaly
CityRome
Period21/03/1723/03/17

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    Nijbroek, R., Kempen, B., Mutua, J., Soderstrom, M., Piikki, K., Hengari, S., & Andreas, A. (2017). Development of a Soil Organic Carbon Baseline for Otjozondjupa, Namibia. In Proceedings of the Global Symposium on Soil Organic Carbon 2017 (pp. 142-150). FAO. http://www.fao.org/3/a-i7565e.pdf#page=142