Soil CO2 emissions in cropland with fodder maize (Zea mays L.) with and without riparian bufer strips of differing vegetation

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dc.contributor.authorDlamini, J. C.
dc.contributor.authorCardenas, L. M.
dc.contributor.authorTesfamariam, E. H.
dc.contributor.authorDunn, R. M.
dc.contributor.authorEvans, J.
dc.contributor.authorHawkins, J. M. B.
dc.contributor.authorBlackwell, M. S. A.
dc.contributor.authorCollins, A. L.
dc.date.accessioned2023-02-15T05:36:41Z
dc.date.available2023-02-15T05:36:41Z
dc.date.issued2022
dc.description© The Author(s) 2022. This article is published with open access at Springerlink.com and is licensed under the Creative Commons Attribution 4.0 International License - https://creativecommons.org/licenses/by/4.0/ . The Version of Scholarly Record of this Article is published in Agroforestry Systems, 2022, available online at: https://link.springer.com/article/10.1007/s10457-022-00756-5 . Keywords: freshwater courses; arable land; carbon dynamics; mineralisation.
dc.description.abstractVegetated land areas play a significant role in determining the fate of carbon (C) in the global C cycle. Riparian buffer vegetation is primarily implemented for water quality purposes as they attenuate pollutants from immediately adjacent croplands before reaching freashwater systems. However, their prevailing conditions may sometimes promote the production and subsequent emissions of soil carbon dioxide (CO2). Despite this, the understanding of soil CO2 emissions from riparian buffer vegetation and a direct comparison with adjacent croplands they serve remain elusive. In order to quantify the extent of CO2 emissions in such an agro system, we measured CO2 emissions simultaneously with soil and environmental variables for six months in a replicated plot-scale facility comprising of maize cropping served by three vegetated riparian buffers, namely: (i) a novel grass riparian buffer; (ii) a willow riparian buffer, and; (iii) a woodland riparian buffer. These buffered treatments were compared with a no-buffer control. The woodland (322.9 ± 3.1 kg ha− 1) and grass (285 ± 2.7 kg ha− 1) riparian buffer treatments (not significant to each other) generated significantly (p = < 0.0001) the largest CO2 compared to the remainder of the treatments. Our results suggest that during maize production in general, the woodland and grass riparian buffers serving a maize crop pose a CO2 threat. The results of the current study point to the need to consider the benefits for gaseous emissions of mitigation measures conventionally implemented for improving the sustainability of water resources.
dc.description.sponsorshipThe Department of Higher Education and Training (New Generation Gap of Academics Program) and National Research Foundation-Thuthuka (Grant Number: 117964), both under the South African government, are acknowledged for financially supporting this study. The work was also facilitated by the UKRI (UK Research and Innovation) Biotechnology and Biological Sciences Research Council (BBSRC) via grant (awarded to ALC) BB/N004248/1 - “Impacts of different vegetation in riparian buffer strips on hydrology and water quality”. The British Council is acknowledged for a Researcher Links Travel Grant (2017-RLTG9-1069) that initiated the collaboration between J. Dlamini and Rothamsted Research. Rothamsted Research is supported by strategic funding from UKRI-BBSRC via its Institute Strategic Programmes including projects BBS/E/C/000I0320 and BBS/E/C/000I0330.
dc.identifier.citationDlamini, J. C., Cardenas, L. M., Tesfamariam, E. H., Dunn, R. M., Evans, J., Hawkins, J. M. B., Blackwell, M. S. A., Collins, A. L. (2022). Soil CO2 emissions in cropland with fodder maize (Zea mays L.) with and without riparian buffer strips of differing vegetation. Agroforestry Systems, 96, 983–995. https://doi.org/10.1007/s10457-022-00756-5
dc.identifier.issnhttps://doi.org/10.1007/s10457-022-00756-5
dc.identifier.urihttps://hdl.handle.net/20.500.14096/275
dc.language.isoen
dc.publisherSpringer Nature
dc.titleSoil CO2 emissions in cropland with fodder maize (Zea mays L.) with and without riparian bufer strips of differing vegetation
dc.typeArticle

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