1. Introduction
Agriculture is widely recognized as the vehicle through which rural development, food and nutrient security can be attained in Africa [
1,
2,
3]. However, agricultural production is highly sensitive to climate change/variability as the result of its high reliance on climate variables such as rainfall, temperature, wind speed and relative humidity [
4,
5,
6]. Furthermore, the majority of the African smallholder farmers farm in soils of low fertility, have inadequate farm equipment and limited income, have restricted access to climate information and often lack basic agronomic knowledge, thus making them highly vulnerable to the negative effects of climate variability [
7,
8].
In Africa, an increase in air temperatures, the high variability of rainfall onsets and amounts, prolonged dry spells, and the frequent occurrence of intensified extreme weather hazards such as floods and droughts are expected as a result of predicted climate change [
9,
10,
11]. Such changes are already affecting agricultural production with evidence of crop failure, food insecurity, death of livestock as well as outbreaks of pests and diseases being reported in recent years in this region [
9,
10,
12]. Consequently, climate change and variability are already affecting and will continue to threaten the livelihood and food security of the majority of the smallholder farmers in Africa due to their vast reliance on rainfed agricultural production and often having restricted adaptation capacity as a result of financial, resources and knowledge constraints [
6,
9,
13,
14,
15].
The need to limit the adverse effects of climate-related risks on agriculture production through effective adaptation and mitigation strategies is becoming more urgent to support sustainable agricultural productivity and to improve food security for African smallholder farmers [
9,
10,
15,
16,
17]. Several adaptation strategies have been developed, validated, and recommended to cope with the effects of climate variability on rainfed crop production [
8,
18,
19]. These can be broadly grouped into two categories, i.e., traditional adaptation strategies and scientific adaptation strategies. Traditional adaptation strategies consist of simple practices that do not require additional inputs such as labour, hybrid seeds, fertilizers and technical farm implements or intensive-technical skills such as changing planting dates, changing crop types, crop diversification, rainwater harvesting, increasing land under crop production, or changing from crops to livestock [
18,
20,
21]. Scientific adaptation strategies consist of more complex practices that are knowledge-intensive and require additional external inputs and labour such as changing crop variety, improving soil fertility and soil conservation [
18,
20,
21,
22]. Despite the well-documented effectiveness and feasibility of the traditional strategies to cope with climate change in resource-constrained rural communities, adoption remains low in Africa mainly due to the lack of awareness of climate change and effective adaptation strategies [
18,
20,
21]. On the other hand, the low adoption of scientific strategies to cope with climate change is often attributed to low levels of education, age, low income, lack of awareness of climate change and adaptation strategies, lack of labour, poor access to credit and extension services [
8,
18,
19,
23]. Previous studies on farmers’ perceptions of climate change across the African continent indicated that the majority of smallholder farmers often perceive the variability of onsets, rainfall amount and duration of the rainy season as well as the frequent occurrence of droughts and incidences of pests and diseases to be the major weather-induced risks attributed to climate change that affect their agricultural production [
24,
25,
26]. Furthermore, these studies indicated that availability of labour, gender, farming experience, income, level of education, land ownership, access to extension services, credit and markets were often the main determinants of the choices of adaptation strategies used by smallholder farmers across the African continent [
5,
18,
19,
27,
28,
29]. This previous research showed that farmers’ perceptions of climate change and their relative adaptation strategies are local-specific as a result of differences in local policies, availability of infrastructure, resources, political and cultural ideologies as well as access to climate information [
5,
6,
30,
31,
32].
Given the wide range of cultural ideologies and agro-climatic conditions in South Africa, knowledge of the farmers’ perceptions and their adaptation strategies across the country is crucial for the development and implementation of effective and informed policies to enhance sustainable agricultural productivity [
33]. Although a few early studies were undertaken to understand farmers’ perceptions and their relative adaptation strategies to cope with climate variability in South Africa [
8,
28,
33,
34], these did not investigate the determinants of the choices of adaptation strategies used by smallholder farmers in the country. The understanding of those determinants is a prerequisite for the development of informed and effective interventions to build climate-resilient rural communities, not only in the case of the study area but also in other communities facing similar socio-economic challenges [
19]. Furthermore, amongst the studies on determinants of the choice of adaptation strategies that have been conducted across the African continent, very few have considered the differences between traditional and scientific adaptation strategies [
18,
19,
20,
21]. Therefore, the determinants and the challenges limiting smallholder farmers in Africa from adopting traditional adaptation strategies have not been well investigated [
18]. However, traditional adaptation strategies have the potential to be adopted easily by resource-constrained smallholder farmers despite their serious socio-economic and institutional challenges that still need to be solved at a national level. Consequently, the improved understanding of the challenges preventing smallholder farmers from adopting traditional adaptation strategies is imperative for the development of informed and effective interventions to enhance climate-resilience of these farmers with little effort and external resources. Therefore, this study was undertaken to understand the smallholder farmer’s perception of the effects of climate change on their crop production, their adaptation strategies and factors determining the adoption of their adaptation strategies in the eastern Free State Province of South Africa. Firstly, we determine their perception of the effects of climate change on agricultural production. Secondly, we identify the adaptation strategies they used and the extent of their adoption. Thirdly, we identify the factors determining the adoption of those adaptation strategies. Finally, we recommend relevant approaches to increase the climate-resilience of smallholder farmers in the study area.
4. Conclusions and Recommendations
Climate change/variability is already and is likely to continue affecting agricultural productivity negatively in Africa where the majority of the smallholder farmers are reliant mainly on rainfed crop production for their livelihoods and household food security. This study was undertaken to understand the smallholder farmer’s perception of the effects of climate change, their adaptation strategies, and factors determining the adoption of their adaptation strategies in the eastern Free State Province of South Africa. The results showed that most of the smallholder farmers who were aware of the impacts of climate change perceived that climate change had caused food-related impacts such as a decline in crop yield, food price increase, food shortage/insecurity, and loss of the entire crop. The study further showed that the majority of the smallholder farmers had adopted at least one practice to cope with climate variability in the study area. Water harvesting, changing crop variety, soil conservation, and improving soil fertility were the most popular adaptation strategies used by smallholder farmers in the study area while increasing land under crop production, crop diversification, changing crop type, and changing from crop to livestock production were the least used practices.
Results indicated that on-farm income and awareness of traditional adaptation strategies were the main factors that significantly and positively influence the adoption of traditional adaptation strategies, while access to climate information had a significant and negative effect on their adoption. Furthermore, the study indicates that ownership of livestock, awareness of scientific adaptation strategies and access to credit were the key factors that significantly and positively influence the adoption of scientific adaptation strategies, while farm size had a significant and negative effect on their adoption. The study showed that awareness and knowledge were the key factors influencing the adoption of traditional adaptation strategies in the study area while scientific adaptation strategies were additionally influenced by the availability of additional financial investments. The findings suggest that interventions that aim to raise climate change awareness alone can significantly improve the adoption of traditional adaptation strategies. Therefore, awareness-raising of climate change and relative adaptation strategies through training, education and field days is recommended for wider adoption of the adaptation strategies. Furthermore, interventions and policies that enhance the access of smallholder farmers to financial institutional support and incentives are recommended for wider adoption of scientific adaptation strategies.
The findings of this study suggest that, in order to enhance climate-resilience with minimal external inputs, the promotion of traditional adaptation strategies that are feasible to these resource-constrained smallholder farmers is critical. Therefore, it is recommended that interventions and policies aiming to strengthen the climate adaptive capacity of smallholders should concentrate on promoting the adoption of traditional adaptation strategies such as changing from crops to livestock, crop diversification, increasing land under production, changing crop type, water harvesting, and planting dates through awareness-raising.
Availability and accessibility of relevant, timely and reliable climate information enable the farmers to plan effectively and make informed decisions on adaptation strategies to be used, and hence build climate-resilient farming communities. However, the lack of awareness of climate change and adaptation strategies, as well as poor access to climate information, are the key knowledge-related barriers hindering smallholder farmers from coping effectively with climate variability in the study area. This lack of knowledge could be attributed too poor access to extension services, which are assigned to provide smallholder farmers with technical advisories on climate information, adaptation strategies and sustainable agricultural practices as well as information on credit and market facilities. Therefore, it is recommended that the quality and outreach of extension services in the study area is improved through capacity building and provision of resources as well as relevant, timely and reliable climate information.