Climate Variability and Food Production Nexus in Lesotho, 2001 - 2007

2010 ◽  
Vol 32 (3) ◽  
pp. 149-160 ◽  
Author(s):  
Emeka E. Obioha
Keyword(s):  
Climate Variability ◽  
Food Production

South Africa’s increasing climate variability and its effect on food production

2021 ◽  
pp. 003072702110049
Author(s):  
Mashudu Tshikovhi ◽  
Roscoe Bertrum van Wyk
Keyword(s):  
South Africa ◽  
Climate Variability ◽  
Food Production ◽  
Fixed Effects ◽  
Crop Yields ◽  
Negative Impact ◽  
Secondary Data ◽  
Mean Annual Temperature ◽  
Fixed Effects Panel Regression ◽  
The Impact

This study examines the impact of increasing climate variability on food production in South Africa, focusing on maize and wheat yields. A two-way fixed effects panel regression model was used to assess the climate variability impacts, analysing secondary data for the period 2000 to 2019 for nine provinces in South Africa. The study found that increasing climate variability has a negative impact on maize and wheat production in South Africa. Specifically, the results indicated a negative correlation between mean annual temperature with both maize and wheat yields. A decrease in precipitation affected maize yields negatively, while the impact on wheat yields was positive, although insignificant. This analysis, therefore, depicted that crop yields generally increase with more annual precipitation and decrease with higher temperatures. The study recommends that funding initiatives to educate farmers on increasing climate variability and its effects on farming activities in South Africa should be prioritised.

scholarly journals Developing Climate Information Services for Aquaculture in Bangladesh: A Decision Framework for Managing Temperature and Rainfall Variability-Induced Risks

2021 ◽  
Vol 5 ◽  
Author(s):  
Peerzadi Rumana Hossain ◽  
T. S. Amjath-Babu ◽  
Timothy J. Krupnik ◽  
Melody Braun ◽  
Essam Yassin Mohammed ◽  
...  
Keyword(s):  
Decision Support ◽  
Climate Variability ◽  
Food Production ◽  
Fish Farming ◽  
Information Services ◽  
Climate Information ◽  
Decision Framework ◽  
Rainfall Thresholds ◽  
Dry Spell ◽  
Aquatic Food

Climate information services (CIS) are increasingly in demand to assist farmers in managing risks associated with climate variability and extremes experienced in food production. However, there are significant gaps in the availability and accessibility of these services, especially in aquatic food production in developing countries. In response, this study aims to generate the background knowledge for developing climate information and decision support services tailored for aquaculture farmers in Bangladesh. We surveyed 800 fish-farming households, interviewed 30 key informants, and conducted a systematic literature review to identify climate-sensitive operations and management decisions in aquaculture and to document fish-farmers' awareness of the relationships between climate variability and aquatic food production systems. We also sought to identify the lead time and communication method(s) needed to deploy forecasts effectively and prepare aquaculture farmers to act in response to the forecasts. A fish-farming activity calendar was developed that identified high temperature, cold spell, heavy rainfall, and dry spell events as key climatic phenomena affecting year-round aquaculture operations, including pond preparation and maintenance, fingerling stocking, grow-out management, and harvesting. We also identified five climate-sensitive management decision points and 26 potential advisories in line with specific climate variability to manage induced risks in the day-to-day operations of fish farmers. Finally, the research team developed a decision framework based on the temperature and rainfall thresholds for the grow-out phase of four widely cultivated and economically important fish species in Bangladesh. This innovative decision support approach is to our knowledge the very first endeavor to develop CIS using species-specific temperature and rainfall thresholds to reduce climate risks and ensure resilience capacity for South Asian aquaculture system.

Rainwater harvesting - an alternative for securing food production under climate variability

2004 ◽  
Vol 49 (7) ◽  
pp. 157-163 ◽  
Author(s):  
Q. Zhu ◽  
Y. Li
Keyword(s):  
Climate Variability ◽  
Food Production ◽  
Rainwater Harvesting ◽  
Farming Practices ◽  
Rainfed Agriculture ◽  
Harvesting Systems ◽  
Negative Impacts ◽  
Dry Farming ◽  
The Impact ◽  
Artificial Water

Food insecurity is still a challenge in some remote and mountainous areas in China. When studying the impact of climate variability on food production, we should pay even more attention to the rainfed area. This is because the larger part of agriculture is the rainfed one and climate variability has more negative impacts on the rainfed agriculture than on the irrigated one. The traditional dry farming practices based on the principle of storing as much rain in the soil as possible and making best use of soil water could not bridge the gap between the time that the crop needs water and the time that rain occurs, so its effects on enhancing food production under climate variability is limited. Combining artificial water supply from rainwater harvesting systems with the traditional dry farming practices is an innovation in water management in rainfed agriculture. Experiences in the recent two decades indicate that rainwater harvesting irrigation can well mitigate the drought caused by the climate variability and bring the rainfed agriculture to a new level.

scholarly journals Complementary mechanisms stabilize national food production

2021 ◽  
Vol 11 (1) ◽  
Author(s):  
Lucie Mahaut ◽  
Cyrille Violle ◽  
Delphine Renard
Keyword(s):  
Climate Variability ◽  
Food Production ◽  
Crop Yields ◽  
National Level ◽  
Temporal Stability ◽  
Agricultural Policies ◽  
Yield Data ◽  
Climatic Variations ◽  
The Stability ◽  
The One

AbstractEnsuring the temporal stability of national food production is crucial for avoiding sharp drops in domestic food availability. The average stability of individual crop yields and asynchrony among crop yield fluctuations are two candidate mechanisms to stabilize national food production. However, the quantification of their respective influence on the stability of national food production is lacking, as is the identification of the factors regulating both mechanisms. Using yield data for 138 crops and 115 countries over a 50-year period, we first show that the stability of total national yield mostly relies on the fluctuations of the yield of crops covering the largest share of cropland. The average yield stability of these crops exert a stabilizing effect on national food production that is twice as important as the one of the asynchronous yield fluctuations among them. Climate variability reduces the stability of national food production by synchronizing yield fluctuations among crops and destabilizing the yield of individual crops. However, our results suggest that increasing crop diversity can counteract the synchronizing effects of climate variability by enhancing asynchronous dynamics among crops. Irrigation can promote the average stability of individual crop yields but cannot compensate for the destabilizing effect of climate variability. Considering both the response of each crop to climatic variations and the dynamics emerging from crop baskets will help agricultural policies to ensure stable food supply at the national level.

Seawater-Based Agriculture as a Food Production Defense Against Climate Variability

1981 ◽  
pp. 81-99 ◽  
Author(s):  
C. N. Hodges ◽  
M. R. Fontes ◽  
E. P. Glenn ◽  
S. Katzen ◽  
L. B. Colvin
Keyword(s):  
Climate Variability ◽  
Food Production

Risk analysis of climate variability on food production in Hailun, Northeast China

2010 ◽  
Vol 18 (6) ◽  
pp. 1345-1350
Author(s):  
Hai-Ping ZHANG ◽  
Li-Ding CHEN ◽  
Xiao-Yan WANG ◽  
Yan MA ◽  
Xin-Feng ZHAO ◽  
...  
Keyword(s):  
Risk Analysis ◽  
Climate Variability ◽  
Northeast China ◽  
Food Production

scholarly journals Climate variability, food production shocks, and violent conflict in Sub-Saharan Africa

2015 ◽  
Vol 10 (12) ◽  
pp. 125015 ◽  
Author(s):  
Halvard Buhaug ◽  
Tor A Benjaminsen ◽  
Espen Sjaastad ◽  
Ole Magnus Theisen
Keyword(s):  
Climate Variability ◽  
Food Production ◽  
Violent Conflict ◽  
Sub Saharan Africa ◽  
Sub Saharan

scholarly journals Assessing the Impact of Climate Variability on Food Security in Kenya: A Case Study of Kisii County

2018 ◽  
Author(s):  
Moranga P. Samwel ◽  
Beatrice A. Abutto ◽  
Vincent Otieno
Keyword(s):  
Nutritional Status ◽  
Climate Variability ◽  
Food Insecurity ◽  
Coping Strategies ◽  
Elderly People ◽  
Food Production ◽  
Chi Square ◽  
Household Level ◽  
Chi Square Test ◽  
Nutritional Status Of Children

Climate variability and change has been found to be one of the factors that affect economies leading to food insecurity in various parts of the world. Kenya is no exception. This study looks at how climate variability has contributed to food insecurity in Kisii County, Kenya. The objectives of this study is therefore to, (i) to examine the rainfall and temperature trends in Kisii County for a period of approximately 30 years, (ii) to examine the effect of climate variability on food production and (iii) to assess the perception of local farmers on weather and climate information, (iv) to evaluate the coping strategies adopted at to bridge the gap on food deficit at different household level and (v) to assess the nutritional status of children and the elderly. The study was conducted in two sub-counties of Kisii County; Marani and Bomachoge Chache. The data used was mainly rainfall and temperature data from meteorological stations and sample data gathered from selected groups. The study population comprised of children between 6 months and 59 months, household heads, elderly people and agricultural officers. Purposive sampling was used to select agricultural officers while multistage sampling was used to select respondents at household level. Data was collected by use of a pre-tested questionnaire. The MUAC tape was used to collect nutritional status of children while BMI data was obtained from elderly people. Mann Kendall statistic was used to determine whether the trend of rainfall and temperature observed is significant while Chi-square test was used to determine whether the coping strategies observed varied significantly at household level. From the analysis, rainfall has not shown any significant change in Kisii County while temperature trend has been significantly increasing over the years at 95% confidence level. This could explain the observed reduction in river levels. Analysis of crop production and price trends of major food crops in Kisii County showed a decreasing trend of food production leading to increase in price over the years. This meant that farmers could not produce enough to take them to the next harvesting season making farmers to adopt different coping strategies at household level which differed significantly according to Chi-Square test. Malnutrition status of both elderly people above 59 years and children between 6-59 months were similar with 23% of both children/elderly being severely malnourished/malnourished. This study has only looked at climatic factors such as rainfall and temperature. Other aspects such as depth of underground water, ph level of soil and the effects of land fragmentation also need to be looked at. This study is important to both farmers in choosing the right crop to plant, and policy makers and planners in formulating the best mitigation and intervention strategies for Kisii County food insecurity problem. This will further contribute to national efforts towards achievement of vision 2030.

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