Agricultural Drought and Its Potential Impacts: Enabling Decision-Support for Food Security in Vulnerable Regions

Frontiers in Sustainable Food Systems, Journal Year: 2022, Volume and Issue: 6

Published: Feb. 11, 2022

Increasing demand for food and environmental stressors are some of the most challenging problems that human societies face today these have encouraged new studies to examine drought impacts on production. Seeking discuss important issues in South African context, this study analyzed security one country's largest commercial agricultural land (Free State Province). Earth observation crop data were acquired from Application Extracting Exploring Analysis Ready Samples (AppEEARS) GrainSA databases, respectively years 2011/2012–2020/2021 over Free Province. Two crops namely, maize sorghum obtained database accordingly quantify two crops. The result reveals 2015 2018 affected by extreme events (<10%) where majority area was impacted. Years 2011, 2016, 2018, 2019 severely (>30%) impacted sector area. Findings further revealed production observed lowest recorded year 2014 with about 223,600 119,050 tons, respectively. More so, results showed 2019, 23,600, 24,640, 24,150 order during period study. confirm productions other years. This development might area, outcome will enable decision-making bodies enhance improved strategy vulnerable areas.

Language: Английский

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Exploring the research trends in climate change and sustainable development: A bibliometric study

Cleaner Engineering and Technology, Journal Year: 2024, Volume and Issue: 18, P. 100720 - 100720

Published: Jan. 4, 2024

Climate change and sustainable development are interconnected pressing global challenges requiring urgent attention. Researching the trends in climate through a bibliometric study is essential for addressing challenges, identifying gaps knowledge, informing policy decisions, promoting collaboration within academic research community. This aims to conduct analysis investigate trends, network, thematic evaluation of publications on development. 1696 papers from 1992 2022 were selected using PRISMA framework Scopus database. We employ Bibliometric R VOSviewer software analysis. The found that literature citations have grown significantly. Chinese Academy Sciences leads productivity, while USA, China, India most productive countries. Surprisingly, 44 received over 100 citations, 50% less than five. Trending topics include COVID-19, urbanisation, attitude, mitigation adaptation, etc. themes reveals shift towards mitigation, goals. findings serve as valuable resource researchers, policymakers, practitioners, facilitating deeper understanding evolving knowledge emerging areas. general emphasis more specialised underscores necessity focused examinations distinct domains, including but not limited pursuit

Language: Английский

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Rediscovering South Africa: Flood disaster risk management through ecosystem-based adaptation

Environmental and Sustainability Indicators, Journal Year: 2022, Volume and Issue: 14, P. 100175 - 100175

Published: Feb. 3, 2022

The emergence of ecosystem-based adaptation (EbA) has created a shift from the conventional approaches often accompanied by high costs, including conflicting interests associated with dense urban fabric and inflexibility. Therefore, EbA presents potential for more comprehensive, cost-efficient, multifunctional multidimensional measures in flood disaster risk management. Essentially, integrates biodiversity ecosystem services as an approach to climate change reduction. This study adopts descriptive exploratory analytical aimed at assessing trends events South Africa their management through EbA. reveals that between 1959 2019, several major floods have occurred, resulting losses life livelihoods significant infrastructure damages among others. Recovery taken years needed continuous investment. Unfortunately, many communities not been able "bounce back/bounce forward", despite all these efforts. revealed strategies can be instituted regionally nationally offer efficient or mitigation flood-prone areas. In general, utilising stabilise reduce impacts, minimise environmental impacts disasters developing innovative strategies. recommends increased awareness enhance universal adoption ameliorating risk.

Language: Английский

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Global trend assessment of land use and land cover changes: A systematic approach to future research development and planning

Journal of King Saud University - Science, Journal Year: 2024, Volume and Issue: 36(7), P. 103262 - 103262

Published: May 17, 2024

The diverse landscape of global land use and cover (LULC) change studies were evaluated to uncover the current advances in data future research potential through bibliometrics Preferred Reporting Items for Systematic Reviews Meta-Analyses (PRISMA) approach. A total 2710 published articles with search phrase "Land Land change" OR "Land-use use/Land changes" retrieved using Scopus, Web Science (WOS), ScienceDirect databases from 1993 2022. findings indicated a 24.37% annual growth rate LULC studies, reflecting rapid overall increase articles. China USA emerged as most influential countries regarding article numbers, citations, single-country publications. Ethiopia, Ghana, South Africa, among top 20 rankings underscore importance this research. However, disparity output between multiple-country publications dominant trend highlights geographical bias particularly Global South. This finding underscores need more balanced approach can stimulate further investigation. results also revealed that remote sensing, rapidly growing field utilising advanced computing techniques, is prevalent keyword has significant applications reducing degradation. These significantly enhance research, climate policy programs, management, forest ecology planning, which are crucial face demand agriculture habitable land.

Language: Английский

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Mapping and Assessing Riparian Vegetation Response to Drought along the Buffalo River Catchment in the Eastern Cape Province, South Africa

Climate, Journal Year: 2024, Volume and Issue: 12(1), P. 7 - 7

Published: Jan. 11, 2024

The increasing drought frequency poses a significant threat to global and regional river systems ecosystem functioning, especially in the complex topographical Buffalo River catchment area of Eastern Cape Province, South Africa. This study explored impact on riparian vegetation dynamics using Normalize Difference Vegetation Index (NDVI), Transformed (TDVI) Modified Normalized Water (MNDWI) from satellite-derived Landsat data 1990 2020. least-squares linear regression Pearson’s correlation coefficient were used evaluate long-term cover role precipitation streamflow. results revealed moderate positive (r = 0.77) between streamflow with p-value 0.04 suggesting consequences health. Concurrent precipitation, trends showed that increased insignificantly less an influence while reverse was case long term. show NDVI TDVI indices for detecting water-stressed dynamics. Much these changes reflected MNDWI dry areas higher accuracy (87.47%) dense upper areas. standardized index (SPI) inter-annual inter-seasonal variations drought-stressed years 1991–1996, 2000–2004, 2009–2010, 2015, 2018–2019, 2020 exhibited slight sensitivity drought. findings this underscore need heightened efforts catchment-scale awareness policy development, programs, practices towards ecosystem-based adaptation.

Language: Английский

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Scientometric Analysis of Global Research on the Utilization of Geopolymer Composites in Construction Applications

Sustainability, Journal Year: 2023, Volume and Issue: 15(14), P. 11340 - 11340

Published: July 20, 2023

This study conducts a scientometric review on the use of geopolymer mortar and composites in different construction applications. It aims to analyze findings past research reveal constituents, development trends, knowledge gaps. The Scopus database was employed retrieve relevant publications, while Bibliometrix used conduct statistical analyses. Results revealed steady gradual increase number publications after 2013, as annual growth rate increased from 23.9% 45.2% between timeframes 2003–2013 2014–2022, respectively. analysis highlighted that many authors collaborated applications geopolymers regardless geographic location. Meanwhile, Construction Building Materials, China, Universiti Malaysia Perlis were found be predominant journal, country, institution, showed most frequently investigated for mortars fire resistance, corrosion protection, repair. Research gaps other are not well despite promising performance composites, including 3D printing, heavy metals absorption, environmental underwater Future is required assess alumina silica-rich binders also exploring their lifecycle assessment economic impact.

Language: Английский

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A bibliometric analysis of quality assurance in higher education institutions: Implications for assessing university's societal impact

Evaluation and Program Planning, Journal Year: 2023, Volume and Issue: 99, P. 102319 - 102319

Published: May 23, 2023

Language: Английский

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Global research trends of uranium-containing wastewater treatment based on bibliometric review

Journal of Environmental Management, Journal Year: 2024, Volume and Issue: 354, P. 120310 - 120310

Published: Feb. 19, 2024

Language: Английский

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The impact of social isolation and loneliness on cardiovascular disease risk factors: a systematic review, meta-analysis, and bibliometric investigation

Scientific Reports, Journal Year: 2024, Volume and Issue: 14(1)

Published: June 4, 2024

Abstract Data on the association between social isolation, loneliness, and risk of incident coronary heart disease (CVD) are conflicting. The objective this study is to determine relationship isolation developing cardiovascular in middle age elderly using meta-analysis. purpose bibliometric analysis systematically evaluate existing literature middle-aged individuals. A comprehensive search through four electronic databases (MEDLINE, Google Scholar, Scopus, Web Science) was conducted for published articles that determined and/or loneliness from June 2015 May 2023. Two independent reviewers reviewed titles abstracts records. We followed Preferred Reporting Items Systematic Reviews Meta-Analyses guideline conduct systematic review obtained Scopus database analyzed VOSviewer Bibliometrix applications. Six studies involving 104,511 patients were included final qualitative meta-analysis after screening prevalence ranged 5 65.3%, 2 56.5%. total 5073 events recorded follow-up, ranging 4 13 years. Poor relationships associated with a 16% increase CVD (Hazard Ratio new when comparing high versus low or 1.16 (95% Confidence Interval (CI) 1.10–1.22). shows rapidly growing field (9.77% annual growth) common collaboration (6.37 co-authors/document, 26.53% international). US leads research output, by UK Australia. Top institutions include University College London, Inserm, Glasgow. Research focuses "elderly," "cardiovascular disease," "psychosocial stress," recent trends "mental health," "social determinants," "COVID-19". Social worsen outcomes diseases. However, observed effect estimate small, may be attributable residual confounding incomplete measurement potentially mediating factors. results highlight multidimensional nature research, covering factors such as social, psychological, environmental determinants, well their interplay various demographic health-related variables.

Language: Английский

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The development of fishery-photovoltaic complementary industry and the studies on its environmental, ecological and economic effects in China: A review

Energy Nexus, Journal Year: 2024, Volume and Issue: 15, P. 100316 - 100316

Published: July 3, 2024

The fishery-photovoltaic complementary industry is an emerging industrial model in China that integrates aquaculture with the solar industry. This innovative involves conducting activities while installing photovoltaic modules on water surface to harness energy for electricity generation. However, despite its rapid growth China, this lacks substantial scientific data support across various domains. Therefore, based analysis of relevant research literature, study reviews current development status, environmental and economic effects, as well challenges faced by China. aim provide references promoting sustainable within sector. findings reveal existing projects are primarily concentrated middle lower reaches Yangtze River Pearl Basin. geographical distribution these predominantly influenced local areas available resources, a greater impact observed from former rather than latter. During summer months when shaded panels, slight decrease average quality parameters cases was observed, such 0.2 units pH, 1.06 °C temperature, dissolved oxygen levels 0.8 mg/L, inorganic nitrogen content total phosphorus concentration dropped 0.08 mg/L 0.02 respectively. Conversely, there moderate increase noted ammonia levels. conclusion effect phytoplankton biomass not uniform, but it will certainly reduce zooplankton biomass. species diversity community minimal, direction, whether positive or negative, varied depending specific aquatic ecosystem. A certain degree shade advantageous cultivation shade-loving fish. Through strategic deployment panels implementation stocking practices, possible achieve sustained fisheries production. also can 978.6 tons CO2 emissions per megawatt year through production, thus achieving combined goals conservation reduction, ensuring profitability power Additionally, compared land utilization area 3.66 hm2 traditional ground-mounted photovoltaics, only requires 1.64 hm2, which significantly save resources utilizing surfaces, mitigates conflict between use agriculture renewable installations. At same time, pointed out existence inevitably have some negative impacts bird communities. Economic analyses indicate initial infrastructure costs long payback periods pose challenges, overall feasibility promising, especially governmental technological advancements. several need be addressed further development: include difficulties associated construction costs, periods; insufficient experience technical support; lack ecological - particularly urgent comprehensive life cycle assessments encompassing both aspects. Future should focus assessments, improved PV technology integration, optimized practices.

Language: Английский

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