The Relationships between Climate Variability and Crop Yield in a Mountainous Environment: A Case Study in Lamjung District, Nepal

Poudel, Shobha; Shaw, Rajib

doi:10.3390/cli4010013

Cited by 86 publications

(74 citation statements)

References 19 publications

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“…The perception of climate change by households seems to relate to the direction in which climate variables actually change. The higher percentage of the households from Ilampokhari VDC perceived intense rainfall in summer when precipitation increased from 1980 to 2012 [40]. Similarly, the higher percentage of households from Khudi perceived drought where precipitation decreased from 1980 to 2012 [40].…”

Section: Discussionmentioning

confidence: 93%

“…The higher percentage of the households from Ilampokhari VDC perceived intense rainfall in summer when precipitation increased from 1980 to 2012 [40]. Similarly, the higher percentage of households from Khudi perceived drought where precipitation decreased from 1980 to 2012 [40]. The mountainous households do have varying levels of perception and attitudes towards climate change and its impacts.…”

Section: Discussionmentioning

confidence: 95%

“…The survey results match with the recorded precipitation at the respective stations (1980 to 2013). According to the observed precipitation record, Kunchha and Gharedhunga (Ilampokhari) showed increasing trends of precipitation, and Khudi showed a decreasing trend [40].…”

Section: Precipitationmentioning

confidence: 98%

“…Similarly, high-quality, fertilizer-responsive, improved maize seeds are targeted for mountainous farmers. This is reflected in the historical crop yield data of rice, maize and wheat, since the yield of these three crops increased in the last 30 years inLamjung district [40]. Ranking: 1 indicates high contribution, 5 indicates low contribution.…”

Section: Changes In Food Availability Accessibility and Utilizationmentioning

confidence: 99%

“…Regarding the crop production, the yield of barley (a staple food in the mountainous region of Nepal) decreased in the last 30 years [40]. This decrement was mirrored in the response of households from Khudi and Ilampokhari.…”

Section: Changes In Food Availability Accessibility and Utilizationmentioning

confidence: 99%

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Household Perceptions about the Impacts of Climate Change on Food Security in the Mountainous Region of Nepal

2017

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Abstract:This study tried to understand the mountainous households' perception of climate change and its impacts on food security in the Lamjung district of Nepal. The study attempted to find out changes in households food security and daily activities in the face of climate change for the last twenty years. The study started with the 150 household surveys along with participatory rural appraisal to understand the climate change perception of local people and its impact on dimensions of food security. Households expressed different levels of perception in terms of climate change on food security. The result shows that most of the mountainous households experienced increased temperature, less rainfall in winter, an increasing number of natural disasters and the emergence of insects for the last twenty years. They perceived the role of climate change in decreased crop production, decreased dairy products and increased household work. The situation of food security is likely to be more vulnerable to climate change in the future. It was also observed that households have been using different autonomous adaptation measures, such as high yielding crop varieties, enhanced irrigation systems and fertilizers, to cope with the changing climate. Finally, the study recommended policy instruments to enhance food security in the mountainous region amidst changing climate.

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Section: Discussionmentioning

confidence: 93%

Section: Discussionmentioning

confidence: 95%

Section: Precipitationmentioning

confidence: 98%

Section: Changes In Food Availability Accessibility and Utilizationmentioning

confidence: 99%

Section: Changes In Food Availability Accessibility and Utilizationmentioning

confidence: 99%

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Household Perceptions about the Impacts of Climate Change on Food Security in the Mountainous Region of Nepal

2017

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Climate variability and its impacts on agriculture production and future prediction using autoregressive integrated moving average method (ARIMA)

Praveen

Sharma

2019

Journal of Public Affairs

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This study assesses the impacts of climate variation on land productivity for major Indian food and non‐food grain crops. We collected data for 50 years from (1967–2016) with 15 crops across India. To estimate the variation of agriculture production for each crop by different variables, for instance, rainfall and temperature estimation and future prediction for 20 years, that is, until 2036. Our results specify that land productivity drops with a rise in annual mean temperature in most of the crops. The adverse impact of climate variation on agricultural production recommends food security risk to minor and marginal agricultural families, badly affected by climatic variations. Results show that a rise in temperature would reduce agricultural productivity and assessed sensitivity of Indian agriculture to climate change. We did forecasting using the autoregressive integrated moving average model for 20 years. It shows that as temperature and rainfall upturns in the future, production of some crops, such as gram, sesamum (til), jowar, groundnut, sugarcane, and bajra, will also increase. Some crops are climate sensitive, such as arhar, wheat, rice, cotton, and tea. As temperature increases, the production of these crops slightly increase or decrease.

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Characteristics of the Warming Trend During Winter Wheat Growing Seasons in Jiangsu Province of China

Zhu

Guo

et al. 2019

Computer and Computing Technologies in Agriculture XI

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Global warming has great influences on crop yields. However, several researchers have concluded that global warming has taken a "hiatus" in recent years. Here, we hope to identify the temperature trends of the winter wheat growing seasons and quantitatively estimate the effects of temperature variations on wheat yields. We carry out trend analysis on daily maximum (Tmax) and minimum temperatures (Tmin) from 1980 to 2014 in Jiangsu Province of China. The results indicate there are increasing trends for both Tmax and Tmin during 35 years, but no significant trends in the years after 2000. In addition, the increasing rates of the Tmin are larger than those of Tmax over the 35 years within all stations and all growing stages, which suggests that winter wheat is exposed to asymmetrical warming. The results of correlation analysis and regression analysis reveal that increases in Tmin have significant adverse effects on wheat yields.

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The Relationships between Climate Variability and Crop Yield in a Mountainous Environment: A Case Study in Lamjung District, Nepal

Cited by 86 publications

References 19 publications

Household Perceptions about the Impacts of Climate Change on Food Security in the Mountainous Region of Nepal

Household Perceptions about the Impacts of Climate Change on Food Security in the Mountainous Region of Nepal

Climate variability and its impacts on agriculture production and future prediction using autoregressive integrated moving average method (ARIMA)

Characteristics of the Warming Trend During Winter Wheat Growing Seasons in Jiangsu Province of China

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