Advertisement (please log in or register to remove this ad)
Notices
Welcome to the Hypography Science Forums. You are currently viewing our boards as a guest which gives you limited access to view most discussions and access our other features. By joining our free community you will have access to post topics, take quizzes, communicate privately with other members (PM), respond to polls, upload content and access many other special features. Registration is fast, simple and absolutely free so please, join our community today! If you have any problems with the registration process or your account login, please contact contact us.
__________________ “God does not play dice with the universe; He plays an ineffable game of His own devising, which might be compared, from the perspective of the players, (ie everybody), to being involved in an obscure and complex version of poker in a pitch-dark room, with blank cards, for infinite stakes, with a Dealer who won't tell you the rules, and who smiles all the time.”
Gaiman & Prattchet.
Don Slater explains the benefits of Biochar.
The existence of an anthropogenic and carbon (C) enriched dark soil in different parts of the world and especially in Amazonia (Amazonian Dark Earths (ADE) or Terra Preta de Índio) proves that the predominant Ferralsols and Acrisols can be transformed into fertile soils. Charcoal formation and deposition in soils seems to be a promising option to transfer an easily decomposable biomass into refractory soil organic matter (SOM) pools. The production of charcoal for soil amelioration purposes (slash and char) out of the aboveground biomass (secondary forest and crop residues) instead of converting it to carbon dioxide (CO2) through burning (slash and burn) could establish a C sink and could be an important step towards sustainability and SOM conservation in tropical agriculture. www.biochar.org
Christoph Steiner, a soil scientist at the University of Georgia, stands in the midst of a field of pepper plants in Brazil. These plants are being grown in terra preta — soil enriched hundreds of year ago with charcoal. The ordinary Amazonian soils do not support such productive agriculture.
__________________ “God does not play dice with the universe; He plays an ineffable game of His own devising, which might be compared, from the perspective of the players, (ie everybody), to being involved in an obscure and complex version of poker in a pitch-dark room, with blank cards, for infinite stakes, with a Dealer who won't tell you the rules, and who smiles all the time.”
Gaiman & Prattchet.
Terra Preta
By Kira
“Terra Preta“, or “dark earth”, is an Amazonian Indian technology which can vastly improve soil fertility and pull carbon dioxide out of the atmosphere, potentially keeping it out for thousands of years. Biomass - plant and animal waste .
. .
Terra Preta
“Terra Preta”, or “dark earth”, is an Amazonian Indian technology which can vastly improve soil fertility and pull carbon dioxide out of the atmosphere, potentially keeping it out for thousands of years. Biomass - plant and animal waste such as manure, waste wood, and crop leftovers - can be turned into charcoal (or “biochar”) and then buried in agricultural soil, making rich black earth that plants grow very, very well in. Charcoal is extremely porous, and provides a perfect environment for beneficial soil microorganisms that help plants grow. It also holds water, and can greatly help crops to survive drought conditions.
.. Terra Preta | Seeking the World's Soul
Seeking the World's Soul - Seeking the World's Soul
“Terra Preta“, or “dark earth”, is an Amazonian Indian technology which can vastly improve soil fertility and pull carbon dioxide out of the atmosphere, potentially keeping it out for thousands of years. Biomass - plant and animal waste such as manure, waste wood, and crop leftovers - can be turned into charcoal (or “biochar”) and then buried in agricultural soil, making rich black earth that plants grow very, very well in. Charcoal is extremely porous, and provides a perfect environment for beneficial soil microorganisms that help plants grow. It also holds water, and can greatly help crops to survive drought conditions.
Biochar can be used to pull carbon dioxide out of the atmosphere and potentially reverse global warming (if it were used on a wide enough scale).
Hi, thanks for reposting the blurb from my site, kirahagen.com! I wrote it as a basic summary of terra preta information for a family member who works in tropical agroforestry and land management. Haven't had a chance to try any of it out at home yet, so if there are errors in the article please point them out.
Hi, thanks for reposting the blurb from my site, kirahagen.com! I wrote it as a basic summary of terra preta information for a family member who works in tropical agroforestry and land management. Haven't had a chance to try any of it out at home yet, so if there are errors in the article please point them out.
Thanks again,
Kira Hagen
Sorry Kira, I tried very hard to find a mistake in your article but couldn't
Perhaps -a quibble_ 2,000 years seems a bit long. Maybe 1,000 years might be closer to the mark- but who knows?
__________________ “God does not play dice with the universe; He plays an ineffable game of His own devising, which might be compared, from the perspective of the players, (ie everybody), to being involved in an obscure and complex version of poker in a pitch-dark room, with blank cards, for infinite stakes, with a Dealer who won't tell you the rules, and who smiles all the time.”
Gaiman & Prattchet.
Biochar farming isn't a new concept. Indian farmers were the first to use it, and they referred to it as terra preta del Indio, which meant "Indian dark earth." They used charcoal and fish bones to fertilize the soil, and it created the perfect environment for growing crops.
The amounts of charcoal and fish bones as well as the procedure for this farming are not recorded, but biochar, a type of charcoal, has been looked at as providing similar benefits that the Indian farmers experienced.
In the event that farmers figure out how to properly use biochar to its fullest advantage, food shortages and global warming could be a worry of the past.
It's predicted that biochar farming can produce higher crop yields and decrease the use of chemical fertilizers.
In addition, biochar can store carbon for hundreds or maybe even thousands of years. So if left over crops are turned into charcoal, they can store the carbon longer and reduce the amount of carbon going into the atmosphere. The gases that are produced from charring the plants can be turned into carbon-negative bio-oil, which could be used to power a car.
According to Johannes Lehmann's research at Cornell University, biochar makes soil absorb better and achieve stability, which makes the soil better prepared to deal with erosion, weather changes and water contamination.
However, as with any solution, there are always drawbacks.
For example, overproducing charcoal can cause an increase amount of contamination into the environment.
Also there is not a market for carbon yet, and there isn't a monetary credit provided to farmers who use biochar.
In fact, Dynamotive, an energy company located in Vancouver, has been handing out biochar to any farmers who will try it.
Biochar may be dynamic enough to lessen some of the world's problems, but further research is necessary to examine its advantages and disadvantages.
But it's difficult to do this without knowing how to effectively incorporate biochar into our current farming practices.
It might have worked hundreds of years ago, but that doesn't mean it's the answer to the issues our world faces today.
For example, overproducing charcoal can cause an increase amount of contamination into the environment.Really?
__________________ “God does not play dice with the universe; He plays an ineffable game of His own devising, which might be compared, from the perspective of the players, (ie everybody), to being involved in an obscure and complex version of poker in a pitch-dark room, with blank cards, for infinite stakes, with a Dealer who won't tell you the rules, and who smiles all the time.”
Gaiman & Prattchet.
For example, overproducing charcoal can cause an increase amount of contamination into the environment.[/i]Really?
It's a rather vague statement. Who knows what they meant...
__________________ Hypography Science Forums Moderator
--- "There are no passengers on Spaceship Earth. We are all crew." - Marshall McLuhan
"We must not forget that when radium was discovered no one knew that it would prove useful in hospitals. The work was one of pure science. And this is a proof that scientific work must not be considered from the point of view of the direct usefulness of it." - Marie Curie
Astronomical instruments needed to answer crucial questions, such as the search for Earth-like planets or the way the Universe expands, have come a step closer with the first demonstration at the telescope of a new calibration system for precise spectrographs. The method uses a Nobel Prize-winning technology called a 'laser frequency comb', and is published in this week's issue of Science. Read » | 0 comments
Stanford computer scientists have developed an artificial intelligence system that enables robotic helicopters to teach themselves to fly difficult stunts by watching other helicopters perform the same maneuvers. The result is an autonomous helicopter than can perform a complete airshow of complex tricks on its own. Read » | 0 comments