Articles | Volume 19, issue 8
Research article
22 Apr 2022
Research article |  | 22 Apr 2022

Assessing the impacts of agricultural managements on soil carbon stocks, nitrogen loss, and crop production – a modelling study in eastern Africa

Jianyong Ma, Sam S. Rabin, Peter Anthoni, Anita D. Bayer, Sylvia S. Nyawira, Stefan Olin, Longlong Xia, and Almut Arneth

Related authors

Modeling symbiotic biological nitrogen fixation in grain legumes globally with LPJ-GUESS (v4.0, r10285)
Jianyong Ma, Stefan Olin, Peter Anthoni, Sam S. Rabin, Anita D. Bayer, Sylvia S. Nyawira, and Almut Arneth
Geosci. Model Dev., 15, 815–839,,, 2022
Short summary

Related subject area

Biogeochemistry: Modelling, Terrestrial
Non-steady-state stomatal conductance modeling and its implications: from leaf to ecosystem
Ke Liu, Yujie Wang, Troy S. Magney, and Christian Frankenberg
Biogeosciences, 21, 1501–1516,,, 2024
Short summary
Modelled forest ecosystem carbon–nitrogen dynamics with integrated mycorrhizal processes under elevated CO2
Melanie A. Thurner, Silvia Caldararu, Jan Engel, Anja Rammig, and Sönke Zaehle
Biogeosciences, 21, 1391–1410,,, 2024
Short summary
A chemical kinetics theory for interpreting the non-monotonic temperature dependence of enzymatic reactions
Jinyun Tang and William J. Riley
Biogeosciences, 21, 1061–1070,,, 2024
Short summary
Using Free Air CO2 Enrichment data to constrain land surface model projections of the terrestrial carbon cycle
Nina Raoult, Louis-Axel Edouard-Rambaut, Nicolas Vuichard, Vladislav Bastrikov, Anne Sofie Lansø, Bertrand Guenet, and Philippe Peylin
Biogeosciences, 21, 1017–1036,,, 2024
Short summary
Multiscale assessment of North American terrestrial carbon balance
Kelsey T. Foster, Wu Sun, Yoichi P. Shiga, Jiafu Mao, and Anna M. Michalak
Biogeosciences, 21, 869–891,,, 2024
Short summary

Cited articles

Abdalla, M., Hastings, A., Cheng, K., Yue, Q., Chadwick, D., Espenberg, M., Truu, J., Rees, R. M., and Smith, P.: A critical review of the impacts of cover crops on nitrogen leaching, net greenhouse gas balance and crop productivity, Glob. Change Biol., 25, 2530–2543,, 2019. 
Adimassu, Z., Alemu, G., and Tamene, L.: Effects of tillage and crop residue management on runoff, soil loss and crop yield in the Humid Highlands of Ethiopia, Agr. Syst., 168, 11–18,, 2019. 
Alemu, G. and Bayu, W.: Effects of farmyard manure and combined N and P fertilizer on sorghum and soil characteristics in northeastern Ethiopia, J. Sustain. Agr., 26, 23–41,, 2005. 
Arneth, A., Olsson, L., Cowie, A., Erb, K. H., Hurlbert, M., Kurz, W. A., Mirzabaev, A., and Rounsevell, M. D. A.: Restoring Degraded Lands, Annu. Rev. Env. Resour., 46, 569–599,, 2021. 
Ayuke, F. O., Pulleman, M. M., Vanlauwe, B., de Goede, R. G. M., Six, J., Csuzdi, C., and Brussaard, L.: Agricultural management affects earthworm and termite diversity across humid to semi-arid tropical zones, Agr. Ecosyst. Environ., 140, 148–154,, 2011. 
Short summary
Improved agricultural management plays a vital role in protecting soils from degradation in eastern Africa. We simulated the impacts of seven management practices on soil carbon pools, nitrogen loss, and crop yield under different climate scenarios in this region. This study highlights the possibilities of conservation agriculture when targeting long-term environmental sustainability and food security in crop ecosystems, particularly for those with poor soil conditions in tropical climates.
Final-revised paper