Adam Willson from Soil Systems Australia, talks about the decline in Australian soil health
The building of soil carbon in Australian farmland should be regarded as a an national priority because it the bast way of sequestering atmospheric carbon, soil carbon also holds significant amounts of water, reduces erosion across catchments, increases biodiversity, increases nutrient use efficiency and is a key to increasing yields and food quality. With Australian climate already experiencing temperature extremes impacting vast areas across the continent the need for implementing soil carbon building practices is urgent. To begin this process both the Australian government, the organic industry and conventional counterparts need to immediately start baselining organic carbon in soils. Carbonlink is one Australian company that is developing a soil carbon monitoring process and can measure deeper soil carbon down to 1m – Carbonlink (2015). This data is critical for establishing the effectiveness at which farming practices build soil carbon, biodiversity and resilience across the farming landscape.
All across the world there has been a dramatic decline in soil carbon levels, in particular colloidal soil humus. Deforestation, reduced pastures and meadows, continuous cropping, over cultivation and excessive use of nitrogen fertilisers have all led to reduced soil carbon levels. This carbon has left the soil as carbon dioxide, one of the 3 primary greenhouse gases, and made its way into the atmosphere and ocean (causing acidification).
Soil Systems Australia guide companies and producers with project management, agronomy, horticulture, commercial and on-farm composting, organic consultancy, dairy production, waste water management (for rendering plants & abattoirs), establishing market gardens, education and soil surveys.
Soil Systems Australia