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Acta Agriculturae Scandinavica, Section B — Soil & Plant Science Volume 74, 2024 - Issue 1
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Research Article

Seasonal dynamics of soil CO2 emissions from different semi-arid land-use systems

Lawrence Munjonjia Department of Soil Science, Faculty of Agri Sciences, Stellenbosch University, Stellenbosch, South AfricaCorrespondence[email protected]
ORCID Iconhttps://orcid.org/0000-0001-7647-6361View further author information
ORCID Icon,
Hlengiwe Ntuli Innocentiab Risk and Vulnerability Science Center, Sovenga, South Africa;c Department of Plant Production, Soil Science and Agricultural Engineering, Sovenga, South AfricaView further author information
,
Kingsley Kwabena Ayisib Risk and Vulnerability Science Center, Sovenga, South Africa;c Department of Plant Production, Soil Science and Agricultural Engineering, Sovenga, South AfricaView further author information
,
Phesheya Dlaminic Department of Plant Production, Soil Science and Agricultural Engineering, Sovenga, South AfricaView further author information
,
Kabisheng Emmanuel Mabitselab Risk and Vulnerability Science Center, Sovenga, South AfricaView further author information
,
Carol Mmapula Lehutjob Risk and Vulnerability Science Center, Sovenga, South AfricaView further author information
&
Phumlani Sabelo Magnificent Zwaneb Risk and Vulnerability Science Center, Sovenga, South Africa;d Department of Physical and Earth Sciences, Sol Plaatje University, Kimberley, South AfricaView further author information
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Article: 2312934 | Received 01 Dec 2023, Accepted 28 Jan 2024, Published online: 13 Feb 2024

Figures & data

Figure 1. Locality map showing the locations of the different land use and land cover systems used in this study.

Figure 1. Locality map showing the locations of the different land use and land cover systems used in this study.

Figure 2. Prevailing rainfall and temperature conditions at the study site during the study period.

Figure 2. Prevailing rainfall and temperature conditions at the study site during the study period.

Table 1. Soil physical properties in the four land use systems.

Table 2. Soil chemical properties in the four land use systems.

Figure 3. Soil moisture and surface temperatures in the different land use systems.

Figure 3. Soil moisture and surface temperatures in the different land use systems.

Figure 4. Variation among soil CO2 emission rates in different land use systems and seasons. The values presented for A and B are averages for the season while C are bi-weekly variations.

Figure 4. Variation among soil CO2 emission rates in different land use systems and seasons. The values presented for A and B are averages for the season while C are bi-weekly variations.

Figure 5. The cumulative amount of soil CO2 in four land use systems.

Figure 5. The cumulative amount of soil CO2 in four land use systems.

Figure 6. Relationship between soil moisture content and CO2 emission rates.

Figure 6. Relationship between soil moisture content and CO2 emission rates.

Figure 7. Relationship between surface soil temperature and CO2 emission rates.

Figure 7. Relationship between surface soil temperature and CO2 emission rates.

Table 3. Correlation between soil physical and chemical properties to the cumulative CO2.

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