Monday 27 January 2020

AGRICULTURE IN THE FACE OF CLIMATE CHANGE IN SUB-SAHARAN AFRICA.



Written by Lilian Umeakunne


Youths growing Africa's agriculture.
Agriculture in sub-Saharan Africa has been a source of livelihoods for centuries, from cocoa, tea, spices and known staples to other cash crops and vegetables sold locally and internationally. For a population that depends mostly on farming, the impacts of climate change will be hard-hitting on food production and the environment throughout the region.

Most of the farming models used in parts of sub-Saharan Africa are designed with less attention to soil health, sustainable farm practices, heavy or zero reliance on fertilizers and pesticides which makes the region even more susceptible to climate impacts in the coming years. The continuous production of food in Africa is vital to feeding the ever-growing population which according to the 2019 revision of the World Population Prospects, was 1,038,627,178 in 2018. The current growth rate is 2.3% with most of its population, young people.


How the change in climate is affecting crop and animal agriculture
There has been a record of decrease in rainfall amount over the past few years with visible on-set of droughts in certain areas within the region. The change in precipitation patterns will likely intensify over the next few years with periods of heavy rains and periods of drought. This changing circumstance is affecting agriculture as it becomes even more difficult for farmers to predict the onset of the rains and seasons.

Change in temperature patterns
Maize farm showing weeds resistant to sprays.
Recently, there have been records of more extreme heat during the raining season and the dry season, crops and animals suffer heat stress which can be a major setback in overall growth and development.

The emergence of new pests, weeds and pathogens


Just as farmers are advised to adopt new practices, new viable seeds and prolific animal breeds, they will also need to worry about new pests and diseases, emerging weeds and problems associated with the adoption of new farming methods.

Changes in crop viability
As crops are suited for a specific location as a result of the prevailing climatic conditions and other demographic factors, as these conditions change, there may be a need for farmers to find new crop varieties to adapt to the new conditions.

Changes in animal viability
Like crops, animals are found in areas where they have been domesticated for thousands of years, suited for the climate, they have thrived. Farmers may need to find new livestock breeds in other to adapt to the change in the climate.

Flooding of farm and grazing lands
One of the impacts of climate change is flooding which drastically washes off nutrients from the soil, pollutes water bodies, and causes erosion. The recorded rise in Sea levels is fuelling flooding of farmlands within the coast and riverbanks across the region.

What we can do.
Ignoring the existence of climate change and denying the visible impacts of the changing climate will not solve the problem it poses to agriculture and our planet. Collaborative efforts to devise sustainable adaptation strategies for our communities is pivotal as a problem does not go away by a simple denial of its existence.

Re-thinking our agroecosystems
An example of agroforestry. Source: Montpellier.inra.fr.
Reports from previous researches show several benefits of agroforestry as against monocropping. The combination of trees, shrubs and food crops on the same land area is beneficial to both our environment and the crops as it maintains soil health and reduces reliance on fertilizers.

Appropriate use of Ecology Funds
It is very likely that climate impacts will strike, but when it does, timely support to affected areas/farms is necessary to limit further losses as this is the idea behind the establishment of the Ecology Funds in most of the countries within the region.

Development of new crop varieties and animal breeds
The Agriculture Ministries in countries within the region should invest in research and development to develop new crop varieties and breeds of animal that will be resistant to climate impacts.

Soil Health
Practices that preserve soil health should be adopted through practices such as planting deep-rooted perennial crops and cover crops. The impact of climate change on food production in sub-Saharan Africa will most probably not end in a day but cumulated efforts towards building a more sustainable food future will save our tomorrow.


References

Climate Change and Agriculture | Union of Concerned Scientists [WWW Document], n.d. URL https://www.ucsusa.org/resources/climate-change-and-agriculture (accessed 1.25.20).


US EPA, O., n.d. Climate Impacts on Agriculture and Food Supply [WWW Document]. URL /climate-impacts/climate-impacts-agriculture-and-food-supply (accessed 1.25.20).



Author details:


Lilian Umeakunne is a Food security and livelihoods specialist devoted to making a change in African Agriculture. 
Follow her on social media to share your thoughts and contribute your ideas to solving Africa's greatest problem - hunger and poverty.

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LinkedIn: Lilian Umeakunne
Twitter: @Lily_Umeh
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