article · Agronomy
This review examines climate-smart agriculture (CSA) as a vital strategy to address the dual challenges of climate change impacts on food security and agriculture's contribution to greenhouse gas emissions. It highlights that while climate change is projected to reduce global crop yields, agriculture can mitigate emissions through sustainable practices. The analysis reveals low global nitrogen use efficiency, underscoring the need for precision nutrient management. It also stresses the importance of regenerative agriculture to restore degraded land, improve soil health, and enhance biodiversity. Various CSA practices, including precision agriculture and agroforestry, improve soil health and food security. However, successful implementation requires site-specific strategies, integration of multiple practices, and overcoming socio-economic and technological barriers through supportive policies and financial incentives.
This research is crucial because it outlines how agriculture can adapt to climate change, ensure food security for a growing population, and reduce its environmental footprint. By adopting climate-smart practices, we can build more resilient food systems and contribute to global climate goals.
This review identifies various climate-smart agricultural practices and technologies, such as precision agriculture, biochar application, and agroforestry, that could be developed into practical tools or services. Potential users include farmers, agricultural organisations, and policymakers seeking to implement sustainable and resilient food production systems. The work is at an applied research and strategic planning level, aiming for large-scale implementation and widespread adoption through supportive policies and financial incentives.
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Without transformative adaptation strategies, the impact of climate change is projected to reduce global crop yields and increase food insecurity, while rising greenhouse gas (GHG) emissions further exacerbate the crisis. While agriculture is a major contributor to climate change through unsustainable practices, it also offers significant opportunities to mitigate these emissions through the adoption of sustainable practices. This review examines climate-smart agriculture (CSA) as a key strategy for enhancing crop productivity, building climate resilience, and reducing GHG emissions, while emphasizing the need for strategic interventions to accelerate its large-scale implementation for improved food security. The analysis revealed that while nitrogen use efficiency (NUE) has improved in developed countries, the global NUE remains at 55.47%, emphasizing the need for precision nutrient management and integrated soil fertility strategies to enhance productivity and minimize environmental impacts. With 40% of the world’s agricultural land already degraded, sustainability alone is insufficient, necessitating a shift toward regenerative agricultural practices to restore degraded soil and water by improving soil health, enhancing biodiversity, and increasing carbon sequestration, thus ensuring long-term agricultural resilience. CSA practices, including precision agriculture, regenerative agriculture, biochar application, and agroforestry, improve soil health, enhance food security, and mitigate greenhouse gas emissions. However, result variability highlights the need for site-specific strategies to optimize benefits. Integrating multiple CSA practices enhances soil health and productivity more effectively than implementing a single practice alone. Widespread adoption faces socio-economic and technological barriers, requiring supportive policies, financial incentives, and capacity-building initiatives. By adopting climate-smart technologies, agriculture can transition toward sustainability, securing global food systems while addressing climate challenges.
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DOI: 10.3390/agronomy15030565
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