how does el niño affect agriculture


El Nino Effects

  • El Nino results in the rise of sea surface temperatures
  • It also weakens the trade winds of the affected region
  • In India, Australia, it can bring about drought conditions. This affects the crop productivity largely. …
  • However, in some other countries it may result in a complete reversal, i.e., excessive rainfall.

During El Niño Years

Harvests of summer crops such as corn, peanuts, and cotton may be delayed because of increased rains in the fall. Frequent rains may reduce tilling and yield of winter wheat. Wheat yields in southern AL and GA are generally higher than average during El Niño.


How does El Niño affect the agriculture sector?

 · An El Niño is often associated with important subsequent changes in temperatures and precipitation in several parts of the globe, which may affect agriculture and water resources either positively…

How will El Niño affect cereal production in 1997?

 · Either way, it’s a cause for concern as we are heavily dependent on the south-west monsoon, which provides 70% of India’s rainfall and supports most agricultural activities. Impact on Agri-production In the recent past, there has been a decline in food production during El Nino years – 2009 and 2015.

What has FAO done to help countries affected by El Niño?

 · It influences extreme events such as drought, floods, and tropical cyclones in many regions of the world, and these conditions can impact agriculture and food security, water resources and health. Nearly three decades ago, the development of forecasts of El Niño events captured the attention of natural and social scientists, policy makers and resource managers …

What are the effects of El Nino?

 · El Niño Affected Areas FAO and El Niño Agriculture is one of the main sectors of the economy that could be severely affected by the El Niño phenomenon. While drought is the main threat to food production, El Niño can also cause heavy rains, flooding or …


How does the El Niño affect agricultural production?

ENSO affects crop production because it disrupts normal weather patterns. More specifically, El Niño creates water shortages and La Niña creates water abundance, including flooding. Water shortages reduce crop planting areas, delay planting seasons, and generally lower crop yields.

What is El Niño in agriculture?

An El Niño is often associated with important subsequent changes in temperatures and precipitation in several parts of the globe, which may affect agriculture and water resources either positively or negatively. The change in sea surface temperatures also affects natural conditions for marine ecosystems.

How does La Niña affect agriculture?

The main positive effect associated with La Niña is the increased likelihood of above-average rainfall, Garriss says. “This can be particularly important for drier parts of the world because this additional rain can result in higher crop yields and improved pasture.”

How does El Niño affect plants?

Associated with warmer than average ocean temperatures in the eastern Pacific, El Niños can in turn influence global weather patterns and tropical precipitation, and these changes can lead to massive plant die-offs if other extreme factors are also at play.

How does El Nino and La Nina impact agriculture?

Our results demonstrated that climate anomalies substantially affect crop yield variability in Eastern and Southern Africa. On average, El Niño shocks are likely to cause a reduction in crop yield in Southern Africa. La Niña episodes, on the other hand, are associated with increased wheat and maize production.

How does El Niño affect agricultural production Australia?

During ENSO–El Niño periods, reduced rainfall throughout much of Queensland results in drought, land degradation, reduced profits, greater debt and human hardship. During ENSO–La Niña periods, higher rainfall has led to some major floods.

Which crop is affected by El Niño?

The team mapped the impact of ENSO on the yields of four major food crops: maize, rice, wheat and soybean. These crops account for almost 60% of the world’s food calories produced on croplands.

What does La Niña mean for farmers?

For grain farmers, La Niña means keeping a close eye on both three-month seasonal climate forecasts and the daily weather forecasts to decide if it’s worth the risk to plant a big crop and if they are likely to be able to harvest it before any big rainfall events occur.

How does El Niño affect water supply?

Decreased rainfall and drought in the Western Pacific. During El Niño years, drought is most likely in the Pacific Islands during January to March. Can cause a reduction sea level by one (1) foot or more in the Pacific Islands.

How does El Niño affect the environment?

El Niño causes the Pacific jet stream to move south and spread further east. During winter, this leads to wetter conditions than usual in the Southern U.S. and warmer and drier conditions in the North. El Niño also has a strong effect on marine life off the Pacific coast.

What are 3 effects of El Niño?

Severe drought and associated food insecurity, flooding, rains, and temperature rises due to El Niño are causing a wide range of health problems, including disease outbreaks, malnutrition, heat stress and respiratory diseases.

What are the positive effects of El Niño?

On the other hand, in the United States, El Niño typically brings wet weather to California (benefiting lime, almond, and avocado crops, among others), warmer winters in the Northeast, increased rainfall in the South, diminished tornado activity in the Midwest, and a decrease in the number of hurricanes that hit the …


How often does El Nino happen?

It is confirmed that 2019 is the year of the El Nino, a natural phenomenon, which usually occurs every 4-5 years. When it occurs, India’s monsoon is usually – but not always – delayed or deficient. If we look back over the last four decades, we have faced severe drought in El Nino years – 1982, 1987, 2002, 2009 and 2015.

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