Vulnerability of Maize Yields to Climate Change in Different Farming Sectors in Zimbabwe

2015 ◽  
pp. 229-239
Author(s):  
P. Muchena ◽  
A. Iglesias
Keyword(s):  
Climate Change ◽  
Maize Yields

scholarly journals How will East African maize yields respond to climate change and can agricultural development mitigate this response?

2018 ◽  
Vol 147 (3-4) ◽  
pp. 491-506 ◽  
Author(s):  
Frank Davenport ◽  
Chris Funk ◽  
Gideon Galu
Keyword(s):  
Climate Change ◽  
Agricultural Development ◽  
East African ◽  
Maize Yields

An assessment of climate change impacts on maize yields in Hebei Province of China

2017 ◽  
Vol 581-582 ◽  
pp. 507-517 ◽  
Author(s):  
Yongfu Chen ◽  
Xinru Han ◽  
Wei Si ◽  
Zhigang Wu ◽  
Hsiaoping Chien ◽  
...  
Keyword(s):  
Climate Change ◽  
Climate Change Impacts ◽  
Hebei Province ◽  
Maize Yields

scholarly journals Assessment of the impacts of climate change on maize production in the Wami Ruvu basin of Tanzania

2016 ◽  
Vol 8 (1) ◽  
pp. 142-164 ◽  
Author(s):  
Philbert Luhunga ◽  
Ladslaus Chang'a ◽  
George Djolov
Keyword(s):  
Climate Change ◽  
Climate Models ◽  
Regional Climate ◽  
Climate Projections ◽  
Intergovernmental Panel ◽  
Lower Altitude ◽  
Rcp 8.5 ◽  
Maize Yields ◽  
The Impact ◽  
Impacts Of Climate Change

The IPCC (Intergovernmental Panel on Climate Change) assessment reports confirm that climate change will hit developing countries the hardest. Adaption is on the agenda of many countries around the world. However, before devising adaption strategies, it is crucial to assess and understand the impacts of climate change at regional and local scales. In this study, the impact of climate change on rain-fed maize (Zea mays) production in the Wami-Ruvu basin of Tanzania was evaluated using the Decision Support System for Agro-technological Transfer. The model was fed with daily minimum and maximum temperatures, rainfall and solar radiation for current climate conditions (1971–2000) as well as future climate projections (2010–2099) for two Representative Concentration Pathways: RCP 4.5 and RCP 8.5. These data were derived from three high-resolution regional climate models, used in the Coordinated Regional Climate Downscaling Experiment program. Results showed that due to climate change future maize yields over the Wami-Ruvu basin will slightly increase relative to the baseline during the current century under RCP 4.5 and RCP 8.5. However, maize yields will decline in the mid and end centuries. The spatial distribution showed that high decline in maize yields are projected over lower altitude regions due to projected increase in temperatures in those areas.

scholarly journals Effects of ecological and conventional agricultural intensification practices on maize yields in sub-Saharan Africa under potential climate change

2014 ◽  
Vol 9 (4) ◽  
pp. 044004 ◽  
Author(s):  
Christian Folberth ◽  
Hong Yang ◽  
Thomas Gaiser ◽  
Junguo Liu ◽  
Xiuying Wang ◽  
...  
Keyword(s):  
Climate Change ◽  
Agricultural Intensification ◽  
Sub Saharan Africa ◽  
Maize Yields ◽  
Sub Saharan ◽  
Potential Climate Change

Climate change impacts on European wheat and maize yields

2020 ◽  
Author(s):  
Andrea Toreti ◽  
Andrej Ceglar ◽  
Frank Dentener ◽  
Davide Fumagalli ◽  
Simona Bassu ◽  
...  
Keyword(s):  
Climate Change ◽  
Climate Model ◽  
Crop Yields ◽  
Regional Climate ◽  
Adaptation Strategies ◽  
Economic Sectors ◽  
Climate Conditions ◽  
Precipitation Regimes ◽  
Maize Yields ◽  
Projected Changes

<p>Crop yields are influenced and affected by climate conditions and the occurrence of extreme events in critical phenological phases during the growing season. As projected climate change for Europe points to an increase of climate extremes as well as a significant warming together with changes in precipitation regimes, it is essential to assess impacts on key socio-economic sectors such as agriculture. Here, we analyse European wheat and maize yields as projected by a crop model driven by bias-adjusted Euro-CORDEX regional climate model simulations under the RCP4.5 and RCP8.5 scenarios. The main findings highlight as maize will be the most affected crop with limited effects of simple adaptation strategies; while a north-south dipole in the projected changes characterizes wheat yields. In the wheat regions negatively affected by climate change, adaptation strategies will play a key role in counterbalancing the impacts of the projected changes. </p>

scholarly journals Climate change impacts on rainfed maize yields in Zambia under conventional and optimized crop management

2021 ◽  
Author(s):  
Siatwiinda Mabele Siatwiinda ◽  
Iwan Supit ◽  
Bert van Hove ◽  
Olusegun Yerokun ◽  
Gerard H. Ros ◽  
...  
Keyword(s):  
Climate Change ◽  
Nutrient Management ◽  
Crop Management ◽  
Yield Decline ◽  
Global Circulation Models ◽  
Maize Varieties ◽  
Northern Regions ◽  
Maize Yields ◽  
Near Future ◽  
Far Future

Abstract Maize production in Zambia is characterized by significant yield gaps attributed to nutrient management and climate change threatens to widen these gaps unless agronomic management is optimized. Insights in the impacts of climate change on maize yields and the potential to mitigate negative impacts by crop management is currently lacking for Zambia. Using five Global Circulation models and the WOFOST crop model, we assessed expected climate change and the impacts on maize yields at a 0.5° × 0.5° spatial resolution for RCP 4.5 and RCP 8.5 scenarios. Impacts were assessed for two future periods (i.e. near future: 2035–2066 and far future: 2065–2096) in comparison with a reference period (1971–2001). The average surface temperature and summer days (above 30°C) are projected to increase strongly in the southern and western regions. Precipitation is expected to decline, except in the northern regions while the number of wet days decline everywhere, indicating a shortening growing season. The risk of crop failure in western and southern regions increases due to dry spells and heat stress while crops in the northern regions will be threatened by flooding or waterlogging due to heavy precipitation. The simulated decline in the water limited and water- and nutrient- limited maize yields varied from ca 15–20% in the near future and from ca 20–40% in the far future, mainly due to the expected temperature increases. Optimizing management by adjusting planting dates and maize varieties can counteract these impacts by 6–29%. Quantitatively, the existing gaps between water limited yields and nutrient limited maize yields are substantially larger than the expected yield decline due to climate change. Improved nutrient management is therefore crucial to avoid crop yield decline and might even increase crop yields in Zambia.

scholarly journals Quantifying Agroforestry Yield Buffering Potential Under Climate Change in the Smallholder Maize Farming Systems of Ethiopia

2021 ◽  
Vol 3 ◽  
Author(s):  
Abel Chemura ◽  
Amsalu Woldie Yalew ◽  
Christoph Gornott
Keyword(s):  
Climate Change ◽  
National Level ◽  
Climate Change Impacts ◽  
Farming Systems ◽  
Maize Yield ◽  
Agroforestry System ◽  
Climatic Conditions ◽  
Yield Losses ◽  
Climate Regulation ◽  
Maize Yields

Agroforestry is a promising adaptation measure for climate change, especially for low external inputs smallholder maize farming systems. However, due to its long-term nature and heterogeneity across farms and landscapes, it is difficult to quantitatively evaluate its contribution in building the resilience of farming systems to climate change over large areas. In this study, we developed an approach to simulate and emulate the shading, micro-climate regulation and biomass effects of multi-purpose trees agroforestry system on maize yields using APSIM, taking Ethiopia as a case study. Applying the model to simulate climate change impacts showed that at national level, maize yield will increase by 7.5 and 3.1 % by 2050 under RCP2.6 and RCP8.5, respectively. This projected increase in national-level maize yield is driven by maize yield increases in six administrative zones whereas yield losses are expected in other five zones (mean of −6.8% for RCP2.6 and −11.7% for RCP8.5), with yields in the other four zones remaining stable overtime. Applying the emulated agroforestry leads to increase in maize yield under current and future climatic conditions compared to maize monocultures, particularly in regions for which yield losses under climate change are expected. A 10% agroforestry shade will reduce maize yield losses by 6.9% (RCP2.6) and 4.2 % (RCP8.5) while 20% shade will reduce maize yield losses by 11.5% (RCP2.6) and 11% (RCP8.5) for projected loss zones. Overall, our results show quantitatively that agroforestry buffers yield losses for areas projected to have yield losses under climate change in Ethiopia, and therefore should be part of building climate-resilient agricultural systems.

The impact of climate change on maize yields in the United States and China

2011 ◽  
Vol 104 (4) ◽  
pp. 348-353 ◽  
Author(s):  
Xiang Li ◽  
Taro Takahashi ◽  
Nobuhiro Suzuki ◽  
Harry M. Kaiser
Keyword(s):  
Climate Change ◽  
United States ◽  
The United States ◽  
Impact Of Climate Change ◽  
Maize Yields ◽  
The Impact
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