scholarly journals Determining Water Isotope Compositions for the IAEA WICO and North West Villages, South Africa

Water ◽  
2021 ◽  
Vol 13 (20) ◽  
pp. 2801
Author(s):  
Joseph Mathuthu ◽  
Naomi Dikeledi Mokhine ◽  
Namhla Mkiva ◽  
Samuel Che Nde ◽  
Ingrid Dennis ◽  
...  
Keyword(s):  
South Africa ◽  
Stable Isotopes ◽  
Isotope Composition ◽  
Underground Water ◽  
Cavity Resonance ◽  
North West ◽  
The North ◽  
North West Province ◽  
Patterns And Processes ◽  
Water Isotope

Deuterium (2H) and oxygen 18 (18O) stable isotopes in water are the key indicators of hydrological and ecological patterns and processes. The water isotopes δ2H and δ18O have been employed widely as tracers in hydrological and ecological research, as they are integrated into geological and biological systems in a predictable manner. The aim of this study was to determine the water isotope composition of the International Atomic Energy Agency’s (IAEA) Water Isotope Inter-laboratory Comparison (WICO) samples and to determine the Local Meteoric Water Line for North West Province (NWP) villages in South Africa. The IAEA WICO 2020 samples were obtained from the IAEA, Vienna, and borehole water samples from selected villages in the North West province of South Africa were randomly collected to investigate the relationship between the stable isotopes (18O and 2H) and the climate in underground water aquifers. A cavity ring-down spectroscopy analyzer with laser-current-tuned cavity resonance, Picarro L2140-i, was used to measure triple water–isotope ratios with high precision. The IAEA WICO results obtained for the d-excess were in a satisfactory range and the margins of error were close to those required by the IAEA. The δ2H values ranged between −33.00‰ and −8.00‰, while the δ18O values ranged between −5.50‰ and −2.00‰. The results of this work have shown that our water science and management lab is capable of undertaking inter-laboratory comparisons for the IAEA.

Goat farmers production objectives and trait preferences in the North West province of South Africa: An approach to identify selection criteria for community-based breeding program

2021 ◽  
Vol 12 (2) ◽  
pp. 64-75
Author(s):  
Fortunate Mtshali Thobile ◽  
Ntanganedzeni Mapholi Olivia ◽  
Tebogo Ncube Keabetswe ◽  
Farai Dzomba Edgar ◽  
C. Matelele Tlou ◽  
...  
Keyword(s):  
South Africa ◽  
Selection Criteria ◽  
Breeding Program ◽  
Community Based ◽  
North West ◽  
The North ◽  
North West Province ◽  
Trait Preferences ◽  
Production Objectives

scholarly journals Draft Genome Sequences of Potentially Pathogenic Clostridium perfringens Strains from Environmental Surface Water in the North West Province of South Africa

2019 ◽  
Vol 8 (32) ◽  
Author(s):  
Johannes Cornelius Jacobus Fourie ◽  
Tomasz J. Sanko ◽  
Cornelius Carlos Bezuidenhout ◽  
Charlotte Mienie ◽  
Rasheed Adegbola Adeleke
Keyword(s):  
South Africa ◽  
Surface Water ◽  
Clostridium Perfringens ◽  
Draft Genome ◽  
Anthropogenic Factors ◽  
Genome Sequences ◽  
Content Type ◽  
North West ◽  
The North ◽  
North West Province

Surface water systems in South Africa are experiencing a major decline in quality due to various anthropogenic factors. This poses a possible health risk for humans. Here, we present the draft genome sequences of three Clostridium perfringens isolates obtained from a fecally polluted river system in the North West province of South Africa.

scholarly journals Evaluation of Factors Influencing the Inclusion of Indigenous Plants for Food Security among Rural Households in the North West Province of South Africa

2020 ◽  
Vol 12 (22) ◽  
pp. 9562
Author(s):  
Abiodun Olusola Omotayo ◽  
Adeyemi Oladapo Aremu
Keyword(s):  
South Africa ◽  
Logistic Regression ◽  
Food Security ◽  
Food System ◽  
Rural Households ◽  
Binary Logistic Regression ◽  
Indigenous Plants ◽  
North West ◽  
The North ◽  
North West Province

Underutilised indigenous plants can support and strengthen the existing food system, as they are considered as socio-economically and environmentally appropriate. These plants generally adapt to marginal conditions, which is essential for a resilient agriculture and sustainable food systems. The current study relied on food security and indigenous plants data collected from some selected rural households from the North West Province of South Africa. The utilised data were collected through a multi-stage sampling technique with the aid of a pre-tested semi-structured questionnaire, while descriptive methods Foster–Greer–Thorbecke (FGT) and binary logistic regression were used for data analysis. The models produced a good fit for the data, and the computed F-value was statistically significant (p < 0.01). The study examined socio-economic and food security status based on the knowledge and the perception of indigenous plants by the households. The incidence of food insecurity (θ0) was 0.4060, indicating that 40.6% of the participants were food insecure while 59.4% were food secured. Binary logistic regression results indicate that factors such as age, gender, educational attainment, inclusion of indigenous plants in diet, food expenditure, and access in the study area impacted results. It was also evident that the participants had considerable knowledge of indigenous plants. However, these indigenous plants were not cultivated or included in the diet by the majority of the participants. The formulation of appropriate holistic policies that support the incorporation of the indigenous plants into the food system is recommended.

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