Understanding the climate change impact on crop yield over Eastern Himalayan Region: ascertaining GCM and scenario uncertainty

2020 ◽  
Vol 142 (1-2) ◽  
pp. 467-482 ◽  
Author(s):  
Jew Das ◽  
Vikas Poonia ◽  
Srinidhi Jha ◽  
Manish Kumar Goyal
Keyword(s):  
Climate Change ◽  
Crop Yield ◽  
Climate Change Impact ◽  
Himalayan Region ◽  
Scenario Uncertainty ◽  
Change Impact ◽  
Eastern Himalayan Region

Long-term prediction of climate change impact on the productivity of grain crops in Ukraine using satellite data

2017 ◽  
Vol 4 (2) ◽  
pp. 3-13 ◽  
Author(s):  
O. Tarariko ◽  
T. Ilienko ◽  
T. Kuchma ◽  
V. Velychko
Keyword(s):  
Climate Change ◽  
Crop Yield ◽  
Satellite Data ◽  
Climate Change Impact ◽  
Crop Yields ◽  
Integrated System ◽  
Grain Crops ◽  
Grain Crop ◽  
Change Impact

Aim. To analyze and predict the climate change impact on the crop structure, yield and gross collections of grain crops in short-term (2025), mid-term (2050) and long-term perspective. Methods. Analysis of long-term series of climatic parameters based on satellite data, climatic modeling, statistical analysis of crop yield and gross collection of grain crops. Results. The positive effect of historical and current climate change on grain crop yields in Ukraine is demonstrated. It is predicted that the preservation of this pattern and the implementation of an integrated system of measures for adapting agroecosystems to warming will promote further increase in the grain crop yield and thus its gross collection. Conclusions. According to the analysis of satellite data and climatic models, further climate warming is predicted and its positive impact on grain crop productivity is forecasted. In case of developing and implementing the measures to adapt agroecosystems to climate change, the grain yield in Ukraine may increase by 25 % in 2025 compared with the current period (2015) and by 29–30 % in 2050; the gross collection of grain crops will reach 75.0 million tons (in 2025) and 79.0–80.0 million tons (in 2050). On condition of effi cient material and technical, scientifi c and informational support, further development of technical means, the reproduction of soil fertility and the improvement of irrigation technologies in the long-term perspective (by 2100), the gross grain collection may reach 92–95 million tons.

scholarly journals Impact of Climate Change on Maize Yield

2020 ◽  
Vol 58 (4) ◽  
Author(s):  
Clarietta Chagwiza ◽  
Phrasia Mapfumo ◽  
Michael Antwi
Keyword(s):  
Climate Change ◽  
Crop Yield ◽  
Climate Change Impact ◽  
Pearson Correlation ◽  
Maize Yield ◽  
Free State ◽  
North West ◽  
Kwazulu Natal ◽  
North West Province ◽  
Change Impact

Climate change has increased temperature, caused drought in places like North West Province, and reduced crop yield. This study investigated the climate change impact (rainfall) on maize yield (1987 -2017). The objectives were to determine the climate change impact on maize yield for Kwazulu-Natal, North West, and Free State Provinces of South Africa, assess the difference in climate change impact on maize yield between the three provinces. Rainfall and maize data were collected from WeatherSA and DAFF, respectively. A Pearson Correlation Analysis revealed a weak negative correlation between rainfall and maize for KwaZulu-Natal and Free State Provinces. However, for North West Province there was a weak positive correlation between maize yield and rainfall. Rainfall determines yield, if excessive, it becomes detrimental to crop yield. Climate change affected negatively on maize yield, rainfall above maize requirement was not beneficial to crop yield and drought reduced yield too. ANOVA results revealed that the group mean yield between the Provinces was different, with KwaZulu-Natal having the highest mean yield. The climate change impact on maize varied between provinces, KwaZulu-Natal Province was least affected, however, North West Province was the most negatively impacted with drought events leading to reduced maize yield.

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