New Dark Earth
The preparation of the compost. If you think in terms of ecological literacy, this activity is one of the main learning chapters. In our civilization, in general, the remains of human food are dumped in a bucket along with plastics and other toxic substances and there the problem ends for consumers. Noisy and stinking trucks cross large cities to carry unwanted material into a landfill. No one cares that the slurries of that material run down the land to the rivers and then return again to their original producers. The compost is another concept: after the meal, remains are separated to ferment and prepared to make soil rich in nutrients that will give new healthy and satisfying crops. One cycle is closed and another cycle begins.
X28_6441 | Nikon P7800 | 1/400s f/2.0 ISO100 6mm (35mm eq:28mm) | 2016:03:02 10:48:55 | Kena Principe
Biochar's potential to reverse climate change, decontaminate and build soil fertility
In brazilian-portuguese: Terra Preta Nova
1. contributing decisively to the solution of climate change
2. enhance soil fertility and crop and agroforestry productivity
3. the basis for the humus enrichment of soil
1. The dark earth*, rich in biochar*, is one of the most desired dreams of the farmer: fertile land forever. This is not a dream, not a delirium is just the discovery of a legacy of the indigenous peoples of the Amazon. And the dream does not stop there: making dark earth, incorporating biochar in the soil, captures carbon from the air, contributing decisively to the solution of climate change. Yet biochar can solve the problem of land contaminated by agrochemicals.
So let's do biochar!
Dark earth surveys, spurred on by their promising future are growing around the world. Governments with a minimum of social responsibility and committed to sustainability programs include biochar in their goals. Educational institutions create entire departments only on the study of dark earth. Brazil, true to the saying that holy home does not work miracles, relies only on the strong will of few tenacious researchers who are not taken into account by their institutions, if not clearly harassed.
Yes, but let's make dark earth! This course is dedicated to the production of biofuel for agricultural use in small farms. 0455
2. Biochar is a solid material obtained from thermochemical conversion of biomass in an oxygen-limited environment that can:
Help solve the global food security crisis and ensure soil security with the use of biochar to: enhance soil fertility and crop and agroforestry productivity; raise the fertility of degraded and marginal soils; and enhance mitigation and adaptation to climate change in agricultural systems.
Help solve the global climate change crisis with the use of biochar to: safely and effectively draw down greenhouse gas (GHG) emissions in stable soil sinks; alleviate GHG emissions associated with decomposition of waste from urban and rural sources; and offset fossil fuel use through high value bioenergy and bio-products.
Help make agricultural production at all scales more sustainable by: maintaining production with lower chemical fertilizer inputs;
more productively recycling agricultural and organic waste materials, and aid in land remediation; and enhancing water quality by reducing nutrient leaching into water bodies and supplies.
(International Biochar Initiative) 0485
3. In the next few decades, industrially produced biochar may become one of the key raw materials for the bio-based economy. Since the construction, electronics, paper making, waste water treatment, textile, 3D printing and other industries will all be competing for this biochar (see 55 uses of biochar), commercially-produced biochar will remain an expensive input for farmers to purchase. Small farmers may find that weighing the cost of farm labor against the cost of commercial biochar comes out in favor of making their own from accumulated farm, garden and household residues. This allows farmers to complete the resource loop on their own farms where biochar can enter the local use cascades (Schmidt, 2012; Shackley, 2014) and become the basis for the humus enrichment of soil.
— Hans-Peter Schmidt and Paul Taylor, the Biochar Journal 0454
indigenous legacy | archaeologic dark earth | biochar | new dark earth
Article Version: 0.2.52
Last Modified: 5/8/2017 10:41:49 AM