4 per thousand, store carbon in global soils

Agriculture and soil. Pollution control, soil remediation, humus and new agricultural techniques.
izentrop
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4 per thousand, store carbon in global soils




by izentrop » 05/06/18, 22:58

The 4 initiative for 1000 was developed by INRA researchers in the late 20th century to restore soil fertility and trap greenhouse gases. http://agriculture.gouv.fr/4-pour-1000- ... les-sols-0

And it is also INRA researchers who write "Carbon storage fluctuates but is not changed in the long term in our climate"

Will understand Charles : Mrgreen:
The analysis showed that soil carbon stocks for three tillage methods (annual tillage, surface tillage and direct tillage) were identical after 41 years of these practices. The superficial work did increase the surface carbon stock (0-10 cm) but decreased it in depth (10-30 cm).

By analyzing the evolution of stocks over time, researchers show that reducing tillage results in carbon storage or destocking phases that are dependent on climatic conditions. Dry years promote the storage of carbon in shallow work, while wet years lead to carbon destocking compared to plowed soil.
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Re: 4 for a thousand, a false good idea




by izentrop » 05/06/18, 23:47

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Re: 4 for a thousand, a false good idea




by izentrop » 06/06/18, 09:26

I rectify.
In the Chinese meta-analysis is written:
Direct seeding with residues and double-cropping systems are beneficial for SOC sequestration.
The fact of bringing organic matter to the ground, there is still some that is stored, but whatever the mode of cultivation. On the other hand, the contribution of nitrogenous fertilizer fertilizer causes a consumption of soil carbon, thus limiting these contributions not to do the opposite effect. So favor organic nitrogen as in phenoculture or in msv.

The title of the Liberation article is therefore false. http://www.liberation.fr/planete/2018/0 ... le_1655641
Everyone does not care, but I still wanted to rectify. ;)
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Re: 4 for a thousand, a false good idea




by izentrop » 18/10/18, 00:14

I'm conversing alone here. :frown:

In fact, it is a good idea to store carbon in the soil.
The implementation of practices that are strongly oriented towards increased storage of organic matter in soils could contribute to a very significant decrease in the CO2 concentration of the atmosphere. http://www.clubdesargonautes.org/faq/ve ... climat.php
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Re: 4 for a thousand, a false good idea




by Christophe » 18/10/18, 00:39

Must believe that at INRA they are not enough lazy to study the good techniques ... (or is it that they have pledged allegiance to agri-business-industry ... is it possible?) ...
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Re: 4 for a thousand, a false good idea




by izentrop » 18/10/18, 08:05

What INRA says and that studies over several years confirm that plowing does not impact the storage of carbon in soils. From the moment we bring it regularly enough, whether it is in the form of manure or debris on the surface, in plowing the carbon is stored in depth whereas in TCS it is more on the surface and there is a threshold or the stock no longer increases in 2 cases.

As Yves Dandonneau explains
... for decades, through our agricultural practices (which tend to deplete soils in organic matter) and through deforestation, humans have released huge quantities of CO2 into the atmosphere. This process is reversible.
For decades, the breeding is done without straw, on grating, as much carbon which does not return to feed the grounds.

By using synthetic fertilizers that skip the carbon cycle, agricultural lands are increasingly poor in humus, when they are not concreted.

The method of Did is good, but knowing this and as there is peril, what is expected to impose agriculture to store mass, it will only be beneficial for everyone?

Instead, we burn biomass mass to produce electricity and we reduce nuclear production, will understand Charles :frown: : Twisted:
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Re: 4 for a thousand, a false good idea




by izentrop » 22/10/18, 01:38

Another article says that this is not a good idea because of the use of glyphosate and does as previously explained that the agricultural soil does not accept saturation anymore. https://www.liberation.fr/planete/2018/ ... le_1655641
That's right, but the agricultural soils are deficient in organic matter, so there's a margin before that happens, there's not just one herbicide, and of course you need other measures as well to complete.
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Re: 4 for a thousand, a very good idea




by izentrop » 08/01/19, 00:20

On the margins of COP 24, Scientists call for 8 steps to increase global soil carbon for climate action and food security https://ccafs.cgiar.org/news/media-cent ... ate-action
"Taking action to increase global soil carbon requires multi-stakeholder collaboration at the science-policy interface. The 4p1000 initiative, which counts 281's partner 39 countries, shows how such collaboration can be used to achieve sustainable development goals in an integrated manner, "said Cornelia Rumpel, lead author of the commentary and director of research at the National Center. Research Institute of the French Institute of Ecology and Environmental Sciences.

The eight steps are:

  1. Stop Carbon Loss - Protect peatlands by enforcing regulations against burning and drainage.
  2. Promote Carbon Absorption - Identify and promote best practices for carbon storage in a manner that is adapted to local conditions, including integrating crop residues, cover crops, agroforestry, contour crops, terraces, soil nitrogen fixing plants and irrigation.
  3. Monitor, report and verify impacts - Monitor and evaluate interventions with protocols and harmonized standards based on scientific data.
  4. Deploy technology - Use high-tech opportunities for faster, cheaper and more accurate monitoring of soil carbon change.
  5. Test Strategies - Determine what works in local conditions using models and a network of sites.
  6. Involve communities - Use citizen science to collect data and create an open online platform for sharing.
  7. Coordinate policies - Integrate soil carbon into national climate commitments in the Paris Agreement and other climate and soil policies.
  8. Provide support - Ensure technical assistance, incentives to farmers, monitoring systems and carbon taxes to promote widespread implementation.
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Re: 4 for a thousand, a very good idea




by izentrop » 13/03/19, 10:49

Global emissions of CO2 have been evaluated at 37,1 billion tonnes in 2018 http://www.lefigaro.fr/sciences/2018/12 ... n-2018.php

Jean Jouzel gives us the possible figures of carbon storage in a recent conference
He does not believe in collapse and he is right, if everyone starts, starting with farmers and even individuals, 1.5 ° at the end of the century are quite achievable. : Wink:
Attachments
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Re: 4 for a thousand, a good idea




by izentrop » 19/03/19, 23:35

I continue my monologue.
The videos for "Ver de terre production" are always more interesting.

Carbon flux in the soil - Pierrick BOULARD takes stock of figures and practices.
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