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Terra Preta and how Iowa farmers are re thinking carbon capture

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Topic by Bob posted 400 days ago 473 views 0 times favorited 13 replies Add to Favorites Watch
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Bob

1427 posts in 896 days
hardiness zone 3b

400 days ago

Topic tags/keywords: resource enviro-friendly terra preta carbon capture

Farmers have released huge amounts of carbon dioxide, the major greenhouse gas, just by plowing their fields.

If you need proof, says soil scientist Lee Burras of Iowa State University, just head for one of the remaining patches of undisturbed American prairie.

Take, for example, Doolittle Prairie near Story City, Iowa. Amid a sprinkling of wildflowers and the calls of red-winged blackbirds, Burras plunges a spade into the soil, cutting through the web of grass roots. Then, on his knees, he lifts out a clump of soil.

“The first thing I notice is how black it is,” Burras says. “Beautifully black.”

Indeed, the soil is black like coal, or oil, or charcoal, because it’s also full of carbon — organic carbon, or humus, Burras calls it. It is what’s left from countless generations of rotting plants.

But exposing that humus to the sun and oxygen also begins to destroy it. Microbes in the soil are going to work on the humus, eating it and breathing out carbon dioxide, as if they were burning up the soil.

This is what happens when farmers till the land.

The Downfall of Plowing

“The tearing of the soil, introducing oxygen — that’s what tillage is all about,” Burras says. “The history of civilization is tillage. I believe it was Daniel Webster who said, ‘Where tillage begins, other arts follow.’”

But tillage also changes the land. Burras walks 100 feet east, out of the grass and into a field planted with soybeans. Here, once again, he turns over some soil.

“One of the most striking differences, as we look at this, is that the field is a little grayer, not quite as black,” he says. “That reflects the past century of plowing and such. We’ve seen the organic carbon content of the field go from 5 percent to about 3 percent.”

It may not seem like much, but it means that over the past 100 years, every acre of this field has vented about 50 tons of carbon dioxide into the atmosphere. That’s about as much as eight average cars pump out in a year.

Of course, there are billions of acres of farmland around the globe. Rattan Lal, a soil scientist at Ohio State University, has traveled the world to study those fields, trying to calculate how much carbon farmers have unleashed.

“From time immemorial when world agriculture began, we have lost roughly 140 billion tons of carbon from trees and soil,” he said to an audience on Capitol Hill in Washington, D.C. Over half of that, almost 80 billions tons, is from the soil alone. In fact, up until the late 1950s, plowing had released more carbon dioxide into the air than all the burning of coal and oil in history
you can read the full article here:
http://www.npr.org/templates/story/story.php?storyId=11951725

-- I want to believe in a lot of things but, in the meantime I have to deal with the truth

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Bon

5154 posts in 928 days
hardiness zone 5a

400 days ago

Good article Bob.Next thing you know the gov’t will be putting an emissions tax on farmers fields like they do on our cars here.

-- Bon,Hastings,Ont.....zone 5a....Always room for one more

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Bob

1427 posts in 896 days
hardiness zone 3b

400 days ago

There’s a decent explanation of Terra Preta (Black Earth) here on National Geographic too.

Bon you are right about governments seeking new ways to tax us to the grave.

Fortunately, the mass hysteria on this one ( global warming) is just about over.

-- I want to believe in a lot of things but, in the meantime I have to deal with the truth

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Bon

5154 posts in 928 days
hardiness zone 5a

400 days ago

Interesting video.I love watching that stuff on the discovery chanel.

-- Bon,Hastings,Ont.....zone 5a....Always room for one more

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Robin

2302 posts in 410 days
hardiness zone 5b

399 days ago

The video Bob posted about Terra Preta has started me on a path of discovery. I had never heard of this soil before and I was intrigued. Following a search for more information about the subject, I found the next book I want to read:

The Path Through Infinity’s Rainbow by Michael P. Byron

However, none of the libraries in our system carry it so I have sent yet another request to my favorite librarian. Actually, if the library decides not to buy it, the description of the contents intrigues me enough that I might just buy it for my private library even though that goes against my ideal of living more simply. If any of you have the time and inclination, look up the description of the book on Amazon.com and see if it is a book you would like to read too. After we all read it, think of the discussion threads we could have!

-- Robin, Massachusetts - "Live simply so others can simply live." M. Gandhi

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Bob

1427 posts in 896 days
hardiness zone 3b

399 days ago

I’ll give a look for tha title here too and if not then one less bottle of shiraz!

-- I want to believe in a lot of things but, in the meantime I have to deal with the truth

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erich

1 post in 399 days

399 days ago

Biochar Soil Technology…..Husbandry of whole new orders of life

Biotic Carbon, the carbon transformed by life, should never be combusted, oxidized and destroyed. It deserves more respect, reverence even, and understanding to use it back to the soil where 2/3 of excess atmospheric carbon originally came from.

We all know we are carbon-centered life, we seldom think about the complex web of recycled bio-carbon which is the true center of life. A cradle to cradle, mutually co-evolved biosphere reaching into every crack and crevice on Earth.

It’s hard for most to revere microbes and fungus, but from our toes to our gums (onward), their balanced ecology is our health. The greater earth and soils are just as dependent, at much longer time scales. Our farming for over 10,000 years has been responsible for 2/3rds of our excess greenhouse gases. This soil carbon, converted to carbon dioxide, Methane & Nitrous oxide began a slow stable warming that now accelerates with burning of fossil fuel.

Wise Land management; Organic farming and afforestation can build back our soil carbon,

Biochar allows the soil food web to build much more recalcitrant organic carbon, ( living biomass & Glomalins) in addition to the carbon in the biochar.

Biochar, the modern version of an ancient Amazonian agricultural practice called Terra Preta (black earth, TP), is gaining widespread credibility as a way to address world hunger, climate change, rural poverty, deforestation, and energy shortages… SIMULTANEOUSLY!
Modern Pyrolysis of biomass is a process for Carbon Negative Bio fuels, massive Carbon sequestration,10X Lower Methane & N2O soil emissions, and 3X Fertility Too.
Every 1 ton of Biomass yields 1/3 ton Charcoal for soil Sequestration (= to 1 Ton CO2e) + Bio-Gas & Bio-oil fuels = to 1MWh exported electricity, so is a totally virtuous, carbon negative energy cycle.

Biochar viewed as soil Infrastructure; The old saw;
“Feed the Soil Not the Plants” becomes;
“Feed, Cloth and House the Soil, utilities included !”.
Free Carbon Condominiums with carboxyl group fats in the pantry and hydroxyl alcohol in the mini bar.
Build it and the Wee-Beasties will come.
As one microbiologist said on the Biochar list; “Microbes like to sit down when they eat”.
By setting this table we expand husbandry to whole new orders of life.

This is what I try to get across to Farmers, as to how I feel about the act of returning carbon to the soil. An act of pertinence and thankfulness for the civilization we have created. Farmers are the Soil Sink Bankers, once carbon has a price, they will be laughing all the way to it.

Dr. Scherr’s report includes biochar. http://www.worldwatch.org/node/6124

I think we will be seeing much greater media attention for land management & biochar as reports like her’s come out linking the roll of agriculture and climate.

Unlike CCS which only reduces emissions, biochar systems draw down CO2 every energy cycle, closing a circle back to support the soil food web. The “capture” collectors are up and running, the “storage” sink is in operation under our feet. Pyrolysis conversion plants are the only infrastructure we need to build out.

Another significant aspect of bichar and aerosols are the low cost ($3) Biomass cook stoves that produce char but no respiratory disease. http://terrapretapot.org/ and village level systems http://biocharfund.org/ with the Congo Basin Forest
Fund (CBFF). The Biochar Fund recently won $300K for these systems citing these priorities;
(1) Hunger amongst the world’s poorest people, the subsistence farmers of Sub-Saharan Africa,
(2) Deforestation resulting from a reliance on slash-and-burn farming,
(3) Energy poverty and a lack of access to clean, renewable energy, and
(4) Climate change.

This ordering of priorities is a compelling mantra against the Biofuel Watch UK group who have consistently misrepresented Biochar research work.

Major Endorsements:

Secretary of Interior Ken Salazar has done the most to nurse this biofuels system in his Biochar provisions in the 07 & 08 farm bill,
http://www.biochar-international.org/newinformationevents/newlegislation.html

NASA’s Dr. James Hansen Global warming solutions paper and letter to the G-8 conference, placing Biochar / Land management the central technology for carbon negative energy systems.
http://arxiv.org/ftp/arxiv/papers/0804/0804.1126.pdf

Dr. James Lovelock (Gaia hypothesis) says Biochar is “The only hope for mankind”

Charles Mann (“1491”) in the Sept. National Geographic has a wonderful soils article which places Terra Preta / Biochar soils center stage.
http://ngm.nationalgeographic.com/2008/09/soil/mann-text

Soil Carbon Sequestration Standards Committee. this group of diverse interests has been hammering out issues of definition, validation and protocol. The past week, this group have been pressing soil sequestration’s roll for climate legislation to congress.
http://www.novecta.com/documents/Carbon-Standard.pdf

Along these lines internationally, the work of the IBI fostering the application by 20 countries for UN recognition of soil carbon as a sink with biochar as a clean development mechanism will open the door for programs across the globe.
http://www.biochar-international.org/biocharpolicy.html.

Reports:
This new Congressional Research Service report (by analyst Kelsi Bracmort) is the best short summary I have seen so far – both technical and policy oriented.
http://assets.opencrs.com/rpts/R40186_20090203.pdf .

This is the single most comprehensive report to date, covering more of the Asian and Australian work;
http://www.csiro.au/files/files/poei.pdf

Biochar data base; TP-REPP
http://terrapreta.bioenergylists.org/?q=node

Disscusion Groups;
The group home page location, General orientation:
Biochar (http://tech.groups.yahoo.com/group/biochar/
Biochar POLICY;
http://groups.yahoo.com/group/biochar-policy
Biochar Soils;
http://tech.groups.yahoo.com/group/biochar-soils/
Biochar Production; http://tech.groups.yahoo.com/group/biochar-production/

Earth Science Terra Preta Forum; http://hypography.com/forums/terra-preta/

Given the current “Crisis” atmosphere concerning energy, soil sustainability, food vs. Biofuels, and Climate Change what other subject addresses them all?

This is a Nano technology for the soil that represents the most comprehensive, low cost, and productive approach to long term stewardship and sustainability.

Carbon to the Soil, the only ubiquitous and economic place to put it.
Cheers,
Erich

Erich J. Knight
Eco Technologies Group Technical Adviser
University of California Riverside advisory board member
Shenandoah Gardens (Owner)
1047 Dave Barry Rd.
McGaheysville, VA. 22840
540 289 9750
Co-Administrator, Biochar Data base & Discussion list TP-REPP

I will be speaking at the first North American Biochar Conference, at CU in Boulder , about my efforts to network the many disciplines and organizations researching and implementing biochar systems.
Keynote speaker Secretary Tom Vilsack & Dr. Susan Solomon (NOAA’s head atmospheric scientist) at. http://www.regonline.com/builder/site/Default.aspx?eventid=684390
( http://www.ecotechnologies.com/index.html , they have also fully funded my field trials with the Rodale Institute & JMU)

My attendance is thanks to the folks at EcoTechnologies Group .

There is real magic coming out of the Asian Biochar conference.
15 ear per stalk corn with 250% yield increase,
Sacred Trees and chickens raised from near death
Multiple confirmations of 80% – 90% reduction of soil GHG emissions

The abstracts of the conference are at
http://www.anzbiochar.org/2009presentations.html

Biochar Studies at ACS Huston meeting;

Most all this work corroborates char soil dynamics we have seen so far . The soil GHG emissions work showing increased CO2 , also speculates that this CO2 has to get through the hungry plants above before becoming a GHG.
The SOM, MYC& Microbes, N2O (soil structure), CH4 , nutrient holding , Nitrogen shock, humic compound conditioning, absorbing of herbicides all pretty much what we expected to hear.

578-I: http://a-c-s.confex.com/crops/2008am/webprogram/Session4231.html

579-II http://a-c-s.confex.com/crops/2008am/webprogram/Session4496.html

665 – III. http://a-c-s.confex.com/crops/2008am/webprogram/Session4497.html

666-IV http://a-c-s.confex.com/crops/2008am/webprogram/Session4498.html

Company News & EU Certification

Below is an important hurtle that 3R AGROCARBON has overcome in certification in the EU. Given that their standards are set much higher than even organic certification in the US, this work should smooth any bureaucratic hurtles we may face.

EU Permit Authority – 4 years tests
Subject: Fwd: [biochar] Re: GOOD NEWS: EU Permit Authority – 4 years tests successfully completed

Doses: 400 kg / ha – 1000 kg / ha at different horticultural cultivars

Plant height Increase 141 % versus control
Picking yield Increase 630 % versus control
Picking fruit Increase 650 % versus control
Total yield Increase 202 % versus control
Total piece of fruit Increase 171 % versus control
Fruit weight Increase 118 % versus control

HOMEPAGE 3R AGROCARBON: http://www.3ragrocarbon.com

Also:

EcoTechnologies is planning for many collaborations ; NC State, U. of Leeds, Cardiff U. Rice U. ,JMU, U.of H. and at USDA with Dr.Jeffrey Novak who is coordinating ARS Biochar research. This Coordinated effort will speed implementation by avoiding unneeded repetition and building established work in a wide variety of soils and climates.
http://www.EcoTechnologies.com

Hopefully all the Biochar companies will coordinate with Dr. Jeff Novak’s soils work at ARS; http://www.ars.usda.gov/pandp/people/people.htm?personid=24434

I spoke with Jon Nilsson of the CarbonChar Group, in their third year of field trials ;
An idea whose time has come | Carbon Char Group
He said the 2008 trials at Virginia Tech showed a 46% increase in yield of tomato transplants grown with just 2 – 5 cups (2 – 5%) “Biochar+” per cubic foot of growing medium. http://www.carbonchar.com/plant-performance

Most recent studies out;

Imperial College test, this work in temperate soils gives data from which one can calculate savings on fertilizer use, which is expected to be ongoing with no additional soil amending.

http://www.iop.org/EJ/article/1755-1315/6/37/372052/ees9_6_372052.pdf?request-id=22fb1902-1c23-4db8-8801-2be7e2f3ce1b

The BlueLeaf Inc. and Dynamotive study are exciting results given how far north the site is,and the low application rates. I suspect, as we saw with the Imperial College test, the yield benefits seem to decrease the cooler the climate.
The study showed infiltration rates for moisture are almost double. The lower leaf temperatures puzzles me however, I thought around 21C was optimum for photosynthesis.

BlueLeaf Inc. and Dynamotive Announce Biochar Test Results CQuest™ Biochar Enriched Plots Yield Crop Increase Ranging From Six to Seventeen Percent vs. Control Plots
http://www.usetdas.com/TDAS/NewsArticle.aspx?NewsID=13603

The full study at Dynomotives site;
http://www.dynamotive.com/wp-content/themes/dynamotive/pdf/BlueLeaf_Biochar_Field_Trial_2008.pdf

Low Tech Clean Biochar;
http://holon.se/folke/carbon/simplechar/simplechar.shtml

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Bob

1427 posts in 896 days
hardiness zone 3b

399 days ago

First Welcome to GT’s Erich.

It’s refreshing to have someone here with a scientific interest in ecology and agricultural stewardship.

I will foloow up on the leads (links) you have provided. Thanks

Bob

-- I want to believe in a lot of things but, in the meantime I have to deal with the truth

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Robin

2302 posts in 410 days
hardiness zone 5b

399 days ago

Yes, welcome! Thank you for providing those links. I try to use locally sustainable agricultural practices on my little farm and I am always interested in ways to improve. Given my limited knowledge about the process of making charcoal (from Eric Sloane’s Reverence for Wood), I am curious how to make charcoal sustainably on a local level and then get it into the ground in a way that it nurtures the living community of soil. I am certain to have questions after I follow these links and I will appreciate your knowledge and experience.

-- Robin, Massachusetts - "Live simply so others can simply live." M. Gandhi

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Bob

1427 posts in 896 days
hardiness zone 3b

397 days ago

R/Gal, I’m new to this practice as well but acquainted with the after growth in forest fire areas. You often see lush vegetation growing along side fallen burns. I always figured it was the wood ash and gave little thought to the charcoal that biodegraded with the dead trees materia

We shall learn this one together.p.s. It won’t take me long to get a few sacks of ths charcoal with a spokeshave and a pair fo decent hiking boots. <g>

Bob

-- I want to believe in a lot of things but, in the meantime I have to deal with the truth

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firecaster

67 posts in 593 days
hardiness zone 7

396 days ago

I have looked into making lump charcoal. See this website http://www.holon.se/folke/carbon/simplechar/simplechar.shtml

For a small garden would you grind the charcoal up?

-- Father of two boys. Both Eagle Scouts.

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Bob

1427 posts in 896 days
hardiness zone 3b

396 days ago

Firecaster, I would as the idea is to invite microlife into the surface of the carbon and the more surface available the better.

Bob

-- I want to believe in a lot of things but, in the meantime I have to deal with the truth

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Robin

2302 posts in 410 days
hardiness zone 5b

396 days ago

Bob, I would enjoy going on that hike with you. I take it you live close to a forest that has burned recently? As firecaster found, there are several sites that show how to make charcoal fairly easily. We had a bad ice storm this last December and lost several trees and many branches. The big pieces are stacked away for firewood but I dragged the smaller branches into huge piles down in the “swamp” (so called because it hasn’t stopped raining all summer). Anyway, rather than our usual family campfires, I thought I might try to turn some of these branches into some charcoal. It didn’t look that difficult. I figure even if it doesn’t help as much in northern climates, adding charcoal probably won’t hurt. I might try one adding charcoal to one raised bed to see if it makes any difference for next summer.

-- Robin, Massachusetts - "Live simply so others can simply live." M. Gandhi

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Bob

1427 posts in 896 days
hardiness zone 3b

396 days ago

Radgal, unfortunately we live all too close to the constant lightnening induced forest fires here.
With the unusually dry spring they are raging in full force across Alberta and B.C.
I would love to have you along for a hike in one of our forest areas . When the season is right they are a large piece of heaven.
I was thinking like you to try two beds side by each to see what happens by increasing a carbon trap into one of them.
It’s not very scientific but it’s worth a shot.
Apparently it takes some time for the micorrhizae to develop.

http://www.bio-organics.com/
Bob

-- I want to believe in a lot of things but, in the meantime I have to deal with the truth

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