Nigeria Natural Capital Accounting Compilation of Pilot Ecosystem Accounts for Nasarawa and Kaduna States Report

The report details the compilation of pilot ecosystem accounts for Kaduna and Nasarawa states in Nigeria between 2015 and 2020. Using the SEEA-EA framework and ARIES AI technology, the study estimated biophysical supply for climate regulation (carbon storage), soil retention, crop production, pollination, and water supply. Findings indicate that while total carbon stocks and soil retention remained relatively stable, there were significant shifts in land cover, including an increase in deciduous broadleaf forests and a loss of shrublands. The report emphasizes the lack of local geo-referenced data and the need for an institutional framework to support independent national environmental accounting.

• The project produced the first Ecosystem Accounts for Kaduna and Nasarawa states, focusing on the biophysical supply of ecosystem services using the System of Environmental-Economic Accounting Ecosystem Accounting (SEEA-EA) international standard.
• Between 2015 and 2020, non-irrigated arable land was the land cover class that experienced the greatest shrinkage across Nigeria, while agricultural land with natural vegetation saw the largest expansion.
• In both Kaduna and Nasarawa states, there was an observed increase in deciduous broadleaf forests and a corresponding loss of shrubland and deciduous shrubland vegetation, though the Technical Working Group noted that deforestation remains a pressing issue.
• Total carbon stocks in both pilot states remained fairly stable from 2015 to 2020, with changes in specific land cover classes aligning with observed land cover shifts.
• The overall soil retention service across both states remained relatively constant between 2015 and 2020, despite significant transformations within individual land cover categories.
• Among the 12 globally important crops modeled, seven were identified in the studied regions: wheat, sugar cane, rice, palm oil, maize, soybean, and potato. Mango was the only crop analyzed that relies heavily on pollinators.
• Water supply estimates for both runoff and baseflow showed a significant negative trend (decrease in volume) between 2015 and 2020, although the report cautions that these values are indicative and require calibration.
• The compilation of these accounts was hindered by a lack of local, geo-referenced data and reliable regional statistics, necessitating the use of global datasets such as ESA-CCI and GFM.

APA

Bulckaen, A., Gilli, C., Piaggio, M., & Drade, D. (2024). Nigeria Natural Capital Accounting Compilation of Pilot Ecosystem Accounts for Nasarawa and Kaduna States Report. Basque Centre for Climate Change. https://www.bc3research.org/h6T8Uy8Nm4gFs0O/20241112110900535902949.pdf

Chicago

Bulckaen, Alessio, Caterina Gilli, Matias Piaggio, and Drita Drade. Nigeria Natural Capital Accounting Compilation of Pilot Ecosystem Accounts for Nasarawa and Kaduna States Report. Basque Centre for Climate Change, 2024. https://www.bc3research.org/h6T8Uy8Nm4gFs0O/20241112110900535902949.pdf.

Wikipedia

{{cite report |last1=Bulckaen |first1=Alessio |last2=Gilli |first2=Caterina |last3=Piaggio |first3=Matias |last4=Drade |first4=Drita |title=Nigeria Natural Capital Accounting Compilation of Pilot Ecosystem Accounts for Nasarawa and Kaduna States Report |publisher=Basque Centre for Climate Change |date=November 2024 |url=https://www.bc3research.org/h6T8Uy8Nm4gFs0O/20241112110900535902949.pdf |access-date=23 October 2026 |via=Climate Insights Directory}}

BibTeX

@techreport{bulckaen2024nigeria, author = {Bulckaen, Alessio and Gilli, Caterina and Piaggio, Matias and Drade, Drita}, title = {{Nigeria Natural Capital Accounting Compilation of Pilot Ecosystem Accounts for Nasarawa and Kaduna States Report}}, institution = {Basque Centre for Climate Change}, year = {2024}, month = nov, url = {https://www.bc3research.org/h6T8Uy8Nm4gFs0O/20241112110900535902949.pdf}, urldate = {2026-10-23}, note = {Indexed by Climate Insights Directory} }