An Integrated Assessment of the Impacts of Changing Climate Variability on Agricultural Productivity and Profitability in an Irrigated Mediterranean Catchment

2013 ◽  
Vol 27 (10) ◽  
pp. 3607-3622 ◽  
Author(s):  
Gabriele Dono ◽  
Raffaele Cortignani ◽  
Luca Doro ◽  
Luca Giraldo ◽  
Luigi Ledda ◽  
...  
GeoHazards ◽  
2021 ◽  
Vol 2 (4) ◽  
pp. 442-453
Author(s):  
Rodrigo Rudge Ramos Ribeiro ◽  
Samia Nascimento Sulaiman ◽  
Stefan Sieber ◽  
Miguel Angel Trejo-Rangel ◽  
Juliana Fionda Campos

Drought is one of the most significant hazards that farmers face in rural areas. This study aims to examine an integrated assessment of the drought impacts in rural territories, considering the social perceptions related to the effects of natural hazards on health, social relations, income, and other impacts. The study area is located in the rural area of the Chapada Diamantina region in Northern Brazil. The characterization of the region was carried out based on historical meteorological and agricultural productivity data. The method used in this study was based on a survey of social perceptions regarding drought impacts by small rural producers through a participatory process. The results indicated how extreme events such as drought influence rural areas. In addition to agricultural productivity (~50%), aspects such as social migration and health problems were observed.


Author(s):  
D. B. Afful ◽  
K. Ayisi

ABSTRACT The provision of farm management decision support and advisory services to insure climate resilient agricultural production systems, especially for subsistence farmers, depends on data on such producers. The main objective of the paper was to generate such data by comparing the status quo regarding dryland, subsistence grain farmers' perceptions of climate variability, their adaptation strategies and crop productivity. Using a survey questionnaire, the comparison was made across time (2014 and 2017) in selected municipalities of Limpopo province. The findings across time and aggregated for all the different local municipalities investigated were similar regarding respondents' perceptions of climate variability, adaptation strategies used and crop productivity. The perceptions revealed that respondents were aware of the reality of climate variability and its negative effects on their crop and livestock production, Agricultural productivity amongst extension and non-extension recipients was low, with minimal differences. These findings auger well for the development of common strategies to improve the effectiveness of the support for farm management including climate variability that is provided by the public agricultural extension service to the group of producers in this study to reduce the negative effects of climate variability on their crop productivity. This will eventually help to improve their food security. Keywords: Perceptions, Climate variability, Productivity, Spatial and temporal variation, Subsistence farming.


2021 ◽  
Author(s):  
Sebastian Bathiany ◽  
Diana Rechid ◽  
Klaus Goergen ◽  
Patrizia Ney ◽  
Alexandre Belleflamme

<p>Agriculture is among the sectors that are most vulnerable to extreme weather conditions and climate change. In Germany, the dry and hot summers 2018, 2019, and 2020 have brought this into the focus of public attention. Agricultural actors like farmers, advisors or companies are concerned to adapt to interannual climate variability and extremes. In the ADAPTER project, we collaborate with stakeholders from these groups and generate practically relevant information, tailored climate change indices and usable information products.</p> <p> </p> <p>The challenges of climate change for agriculture are manifold. The genetic traits of crops need to be adapted to a new climatic average, for instance by breeding new sorts of crops that are specialised for warmer and dryer conditions (i.e. maximising average yields). Agricultural practises need to be adapted to changing seasonal weather patterns under changing climate conditions. It is also vital to ensure the resilience to climate extremes by aiming for a low inter-annual yield variability, in order to prevent price shocks or food shortages.</p> <p> </p> <p>In order to adequately determine the optimal balance between specialisation and risk diversification, the agricultural sector hence requires knowledge not only about changes in the mean climate, but also on the variance around the changing mean. In this contribution, we focus on this second aspect by analysing the potential impact of forced changes in climate variability on the stability of crop yields in central Europe.</p> <p> </p> <p>We analyse the changing climate variability in 85 regional climate model projections from Coordinated Downscaling Experiments over Europe (EURO-CORDEX). We first show how the projections indicate a general increase in climate variability during critical development stages of wheat, rapeseed and maize in Europe. Second, we determine several more specific agronomic climate indices that capture events that have previously been shown to be critical for yields, for instance the occurrence of high daily maximum temperature, the seasonal sum of rainfall, the number of dry days, or the occurrence of compound events with simultaneous drought and increased temperatures. Finally, we illustrate how the results can be made accessible to practitioners in the agriculture sector by co-designing interactive browser applications, thus directly supporting the adaptation of the agricultural system to climate change.</p> <p> </p>


2002 ◽  
Vol 51 (3) ◽  
pp. 363-381 ◽  
Author(s):  
Elena A. Tsvetsinskaya ◽  
Bella I. Vainberg ◽  
Elena V. Glushko

1992 ◽  
Vol 21 (3) ◽  
pp. 289-302 ◽  
Author(s):  
Richard W. Katz ◽  
Barbara G. Brown

2014 ◽  
Vol 9 (4) ◽  
pp. 443-451 ◽  
Author(s):  
Geetha Mohan ◽  
◽  
Hirotaka Matsuda ◽  
Samuel A. Donkoh ◽  
Victor Lolig ◽  
...  

This paper examines the effects of agricultural research expenditure and climate change on agricultural productivity growth by region in Ghana. A panel dataset is constructed for 2000-2009 from the Food and Agriculture Organization of the United Nations; the Ministry of Food and Agriculture, Ghana; and the Agriculture Science and Technology Indicators (ASTI) database of the International Food Policy Research Institute. A Malmquist index was used to compute agricultural productivity growth, including decomposition components efficiency change and technical change. The determinants of productivity growth are examined using a fixed effects regression model. The results specify that significant causal factors impact positively on Ghana’s agricultural productivity growth, include climate variability, infrastructure, and agricultural research and development expenditure. The study confirms there is a need to strengthen and develop new technological progress for sustainable agricultural production in Ghana.


2000 ◽  
Vol 82 (1-3) ◽  
pp. 139-158 ◽  
Author(s):  
Jane Southworth ◽  
J.C. Randolph ◽  
M. Habeck ◽  
O.C. Doering ◽  
R.A. Pfeifer ◽  
...  

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