Potential impacts on climate change on paddy rice yield in mountainous highland terrains

2014 ◽  
Vol 17 (3) ◽  
pp. 117-126 ◽  
Author(s):  
Jonghan Ko ◽  
Han-Yong Kim ◽  
Seungtaek Jeong ◽  
Joong-Bae An ◽  
Gwangyoung Choi ◽  
...  
Keyword(s):  
Climate Change ◽  
Rice Yield ◽  
Paddy Rice

Impacts of climate change on paddy rice yield in a temperate climate

2012 ◽  
Vol 19 (2) ◽  
pp. 548-562 ◽  
Author(s):  
Han-Yong Kim ◽  
Jonghan Ko ◽  
Suchel Kang ◽  
John Tenhunen
Keyword(s):  
Climate Change ◽  
Rice Yield ◽  
Paddy Rice ◽  
Temperate Climate ◽  
Impacts Of Climate Change

scholarly journals Erratum to: Potential impacts on climate change on paddy rice yield in mountainous highland terrains

2014 ◽  
Vol 17 (4) ◽  
pp. 315-315
Author(s):  
Jonghan Ko ◽  
Han-Yong Kim ◽  
Seungtaek Jeong ◽  
Joong-Bae An ◽  
Gwangyoung Choi ◽  
...  
Keyword(s):  
Climate Change ◽  
Rice Yield ◽  
Paddy Rice

scholarly journals Factor Influencing Adaptation Choices Employed by Farmers Against Climate Change to Improve Rice Yield in Bugarama Wetland in Rwanda

2020 ◽  
Vol 2 (1) ◽  
pp. 12-22
Author(s):  
Esther Nyirandorimana ◽  
Ezekiel Ndunda ◽  
John Muriuki
Keyword(s):  
Climate Change ◽  
Rice Yield ◽  
New Technology ◽  
Climatic Conditions ◽  
Descriptive Research ◽  
Changing Climate ◽  
Step Model ◽  
Rice Yields ◽  
Market Distance ◽  
Adaptation Method

The changing climate poses a great challenge to many wetlands productivity worldwide. Rice production in wetlands is a major source of livelihood in developing countries such as Rwanda. This study aimed at determining the factors influencing adaptation methods when farmers perceive the changing climate at Bugarama Wetland Rice Scheme in Rwanda. A descriptive research design was used by this study, whereby quantitative and qualitative data was collected. The analysis was based on data collected from 300 selected farmers using systematic random sampling method. We employed descriptive statistics to assess how farmers perceive the effects of climate change and descriptively measured the new adaptation methods used by farmers in Bugarama to increase their yields. The study adopted Heckman two-step model to determine factors that influence adaptation choices, this analysis procedurally required farmers’ knowledge of perception that makes them respond to the effects of changes in climatic conditions by the use of new adaptation methods. The results deduced that level of education (p =0.019), extension access (p=0.001), market distance (p=0.002) and rice income (p < 0.001) had a probability of influencing farmers perceptions about climate change thus need to adapt. Based on the outcome model, results showed that extension access (p < 0.001), household size (p= 0.098), market distance (p= 0.047), rice income (p =0.032), farmers-to-farmers contact (p < 0.001) and effects of climate change on rice (p=0.038) had a greater probability of influencing farmers choice of adaptation method used to improve rice yields. To conclude, the study found that access to informational facilities and rice income, influenced farmers’ perceptions while extension access, rice income, market distance, farmers-to-farmers contact and effects of climate change on rice yield strongly had a probability of determining farmers’ choice of adaptation. This study recommends that the Rwandan government and local administrators need to develop a strategy that would allow farmers to access information facilities about new technology so as to adapt to the effects of climate change thus improve their rice yields.

scholarly journals PEMANFAATAN MODEL PROYEKSI IKLIM DAN SIMULASI TANAMAN DALAM PENGUATAN ADAPTASI SISTEM PERTANIAN PADI TERHADAP PENURUNAN PRODUKTIVITAS AKIBAT PERUBAHAN IKLIM: STUDI KASUS DI KABUPATEN SUMEDANG, JAWA BARAT

2016 ◽  
Vol 23 (2) ◽  
pp. 159
Author(s):  
Candradijaya A
Keyword(s):  
Climate Change ◽  
General Circulation ◽  
Climate Models ◽  
Rice Yield ◽  
Local Level ◽  
Irrigation Scheduling ◽  
Yield Reduction ◽  
Planting Time ◽  
Near Future ◽  
Far Future

Despite the well-documented model-simulated adverse climate change impact on rice yields reported elsewhere, interventions to address the issue seem to be still limited, particularly at local level. This links to the uncertainty that entails to climate projection and its likely future impact, which varies across regions and climate models. The study analyzes climate change-induced rice yield reduction and the adequacy of current adaptations, to cope with a large range of impact under various climate models. Seventeen General Circulation Models (GCMs) under Representative Concentration Pathways (RCPs) climate change with scenarios of RCP8.5 and RCP4.5, combined with CROPWAT model for near-future (2011-2040) and far-future (2041-2070) projections. The study was conducted in November-December 2013, in Ujungjaya Subdistrict, the District of Sumedang. The output confirms yield reduction to occur in the near-future, to the extent variable across the GCMs. At the highest estimation, rice yield decreases by 32.00% and 31.81%, in comparison to baseline, for near-future under RCP8.5 and RCP4.5, respectively. The reduction extends, with a slightly higher degree, to the far-future. The reduction is sensitive to variation in farming practices of the local farmers, in particular that in planting time and irrigation scheduling. The shifting of planting time to better match rainfall pattern reduces the rice yield by 12.95% for rainfed and 14.07% for the irrigated farming. Meanwhile, improved irrigation scheduling reduces the yield reduction by 16.16%. The findings provide valuable inputs for relevant authorities to understand the climate change-induced rice yield reduction, and to formalate intervention strategies for spesific-location adaptation.

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