Biochar: Revolutionary Black Carbon


The Canadian environmental trendy expression is biochar. Individuals from throughout Canada and USA are curious about biochar and looking forward to knowing what all the hoopla is about.

Property owners, gardeners, agriculture, farmers, forest management, loggers, lumber mill management, refineries, government officials, and landfill owners are, on the whole, engaging in creating biochar reuse applications.

Biochar is an emerging Canadian and American industry market, developing quickly, however yet still at its outset. It has a huge sustainability potential and numerous reuse applications expected when we, as mankind, begin tending to the global climate catastrophe.

Biochar is the scientific term for the thing that almost everyone has seen if they’ve ever been around a bonfire. You can see the blue flares of gases in wood blazing off during the combustion process. However, inside the wood, where the oxygen can’t get to, the wood cellulose is transformed into a hard carbon as it warms up without oxygen.

Biochar for soil

Biochar is dark elemental carbon rather than a natural compound. It isn’t taken up by soil life forms or plants to be utilized as food. However, it serves as an impetus for all of the significant soil capacities.

Biochar can be utilized as a standalone product or as a component of a combined product, such as compost, and has a wide range of possible applications as a soil improvement agent. When biochar is put into the correct soil, it can enhance resource productivity, help fix and/or shield soils from specific environmental pollutants, and serve as a source of greenhouse gas (GHG) mitigation, among other things.

The physical structure of biochar

Biochar is a densely linked, porous network when observed underneath the microscope. Because of its high porosity, biochar has a big surface area – 1 gm of well-made biochar can be comparable to nearly 2,000 square metres, or roughly half an acre – allowing it to interact with significant essential nutrients as well as other chemicals.

The porous structure of biochar suggests that it has a significant amount of space. As a result, biochar is light in weight along with a low bulk density, which might help your soil texture and compaction.

The chemical structure of biochar

Biochar is mostly made up of aromatic carbons, which closely link together to produce a very stable state of carbon that keeps its structure rather than seeping into the environment as carbon dioxide.

Moreover, biochar’s negatively charged surface allows it to attract positively charged substances such as nutrients and pollutants. This feature also adds to biochar’s strong “cation exchange capacity,” which is a measurement of the number of nutrients accessible to plants in the soil.

Biochar production

Pyrolysis is the method used to create biochar. Biochar, porous charcoal, was formerly any sort of organic biomass. Pyrolysis is a process that includes putting biomass in a specific oven and burning it in the absence of oxygen. The end product is a solid, stable carbon-rich substance that can efficiently collect and store carbon in the soil. The suitable temperature for this process varies. Depending on the input material utilized and the temperature achieved during the pyrolysis process, different types of biochar are formed.

What Role Does Biochar Play in Soil Health?

Biochar’s outstanding chemical and physical structure enables it to be used in a wide range of agricultural uses and soil types. 

Biochar has several advantages when it comes to improving soil health. The following are a few of them. When utilizing biochar for these purposes, it’s crucial to check with the authentic biochar provider, like AirTerra, to ensure that it’s being utilized appropriately for your needs.



  • Biochar can help your soil retain more nutrients and water.

Biochar bonds to minerals in the soil, such as calcium and potassium, keeping them from eroding and boosting their accessibility to plants. While this property of biochar is particularly beneficial to soils with a low amount of nutrients or a low proportion of soil organisms, higher nutrient retention can also help you save money on fertilizer by lowering your fertilizer consumption and reducing fertilizer runoff. 

The large surface area of biochar increases its binding ability, allowing it to retain even more nutrients. Biochar’s porous structure allows it to easily store water, making it ideal for soils with limited access to water, drought-stricken areas, and soils with impoverished water-holding capacity, such as sandy loams.

  • Biochar has the potential to support beneficial soil biology.

The porous nature of biochar provides a haven for beneficial soil life, shielding them from severe soil conditions while supplying the nutrients they require to thrive. These advantages might have a good long-term influence on your soil.

  • Your soil’s acidity can be moderated with biochar.

Biochar absorbs hydrogen ions present in the soil, lowering its acidity (raising its pH). Metals that are highly soluble in acidic conditions and possibly dangerous to plants’ health, such as aluminum, can be reduced by increasing soil pH. These toxic metal ions can bond to biochar, lowering their proportion in the soil even further.

  • Your soil and water can be decontaminated with biochar.

The same properties that make biochar so efficient as a soil supplement, also make it ideal for bioremediation or reducing the degree of toxicity of your soil. Heavy metals such as lead and cadmium bond to biochar, preventing plants from absorbing them and eliminating harmful substances from your soil. This is especially useful for soil in contaminated areas, where heavy metal concentrations are likely to be greater.

Because it can adsorb (attach to) toxic organic compounds and residual antimicrobials like chlorine, biochar can serve as a great solution to treat water.

  • Biochar can improve the physical characteristics of your soil.

Biochar can help enhance the textural characteristics of your soil due to its low density and large surface area. Biochar can help to reduce your soil’s bulk density, which is beneficial in heavily compacted soils. Biochar can also improve the absorption rate of water in the soil by improving the porous structure of the soil.

Biochar can also aid in the aggregation of soil particles, which is beneficial for finely grained soils such as sandy soils that need to be stabilized from rainwater and water movement. This also improves soil structure, making it easier for plants to absorb nutrients and water.

Biochar As a Weapon Against Climate Change

Carbon-containing objects like plants and trees are formed from carbon received from the atmosphere. As organic matter is alive and intact, it retains carbon in situ, but when it burns or decomposes, carbon is discharged back into the environment in the form of greenhouse gases such as CO2. As a result, these gases make a significant contribution to global warming and climate change. If the organic material is pyrolysed, the carbon is essentially trapped in the form of biochar and can last decades and centuries in this stable state. Oils and methane are two other remnants of the pyrolysis process that can be recovered and used as an ecologically acceptable energy source (biofuel).

Balance Carbon and Support Small Farmers with AirTerra

AirTerra manufactures regenerative carbon products that help to maintain the physical structure and microbiological conditions of soils that are necessary for healthy living and productive landscapes, as well as filter media for water purification.

With their product SoilMatrix, they aim to restore Earth’s soils by taking carbon out of the atmosphere and transforming it into high-quality biochar reinforced soil products.

They also help small farmers improve their skills so that they may live more sustainably. In the process, AirTerra marketed biochar-producing stoves to small farmers in Kenya and Malawi, as well as taught them how to make the stoves.

  • This has provided a source of income for the farmers and their families.
  • The stoves have helped women save time by eliminating the need to go out and collect fuel in the form of wood.
  • Women do not have to tend to the fire because of the stoves, so smoke exposure is decreased.
  • Avoiding the use of hardwood in cooking stoves reduces deforestation and contributes to the mitigation of climate change.

So, visit today and improve your soil quality with SoilMatrix while also addressing the issue of climate change.