Boosting Soil Organic Carbon: A Climate&Agriculture Solution

  Nov 03, 2023

Increasing Soil Organic Carbon and Combating Climate Change:

Q1: Why is increasing organic carbon in soils considered important for combating climate change?

A1: Increasing organic carbon in soils is crucial because it helps sequester carbon dioxide (CO2) from the atmosphere, reducing greenhouse gas levels, which in turn mitigates climate change. Additionally, it enhances soil fertility and crop yields.

Q2: How does increasing soil organic carbon improve soil fertility?

A2: Soil organic carbon improves soil structure, water-holding capacity, and nutrient retention. It provides a source of energy and nutrients for soil microorganisms, promoting healthier and more fertile soils.

Q3: What regions might benefit the most from increasing soil organic carbon?

A3: Regions with low food security, such as sub-Saharan Africa, could benefit significantly from increased soil organic carbon, particularly if new strategies can boost yields beyond current agricultural practices.

Q4: What is biochar, and how can it help redistribute carbon in soils?

A4: Biochar is a durable solid rich in carbon created by partially combusting organic waste material or biomass in the presence of limited oxygen. It can be used to redistribute carbon locally in soils, improving their carbon content and fertility.

Q5: How could increased soil organic carbon benefit global crop production?

A5: If future technologies can raise soil organic carbon to optimum levels, global production of key staple crops like maize, wheat, and rice could increase by 4.3%. This would be enough to feed an additional 640 million people, addressing food security challenges.

Q6: What are some examples of future technologies that could boost soil organic carbon levels?

A6: Future technologies might include deep-rooted perennial crops, which are currently under extensive research, and biotechnologies that enhance carbon transfer into the soil, such as maize varieties designed for this purpose.

Q7: Why is it important to address soil organic carbon in the context of climate change and agriculture?

A7: Soil organic carbon plays a critical role in carbon sequestration and climate change mitigation. Addressing it in agriculture not only helps combat climate change but also enhances soil fertility and crop yields, contributing to global food security.


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