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all_states_shall_support_improvements_of_soil_health_for_resilient_food_production_and_carbon_sequestration [2019/01/20 19:44]
192.252.163.149 [Conclusion]
all_states_shall_support_improvements_of_soil_health_for_resilient_food_production_and_carbon_sequestration [2019/01/20 19:46]
192.252.163.149 [Solutions]
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   * [[http://​www.agr.gc.ca/​eng/​science-and-innovation/​agricultural-practices/​agroforestry/​benefits-of-agroforestry///​id=1344633257343#​a2|Soil conservation from wind erosion and improved soil quality]]   * [[http://​www.agr.gc.ca/​eng/​science-and-innovation/​agricultural-practices/​agroforestry/​benefits-of-agroforestry///​id=1344633257343#​a2|Soil conservation from wind erosion and improved soil quality]]
   * [[http://​www.agr.gc.ca/​eng/​science-and-innovation/​agricultural-practices/​agroforestry/​benefits-of-agroforestry///​id=1344633257343#​a3|Sequestration of atmospheric carbon]]   * [[http://​www.agr.gc.ca/​eng/​science-and-innovation/​agricultural-practices/​agroforestry/​benefits-of-agroforestry///​id=1344633257343#​a3|Sequestration of atmospheric carbon]]
-  * [[http://​www.agr.gc.ca/​eng/​science-and-innovation/​agricultural-practices/​agroforestry/​benefits-of-agroforestry///​id=1344633257343#​a4|Increased biodiversity] by creating new habitat]]+  * [[http://​www.agr.gc.ca/​eng/​science-and-innovation/​agricultural-practices/​agroforestry/​benefits-of-agroforestry///​id=1344633257343#​a4|Increased biodiversity]] by creating new habitat
   * More humane conditions for animals (and farm labourers)   * More humane conditions for animals (and farm labourers)
   * Increased snow protection for crops   * Increased snow protection for crops
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 Experimental methods of sequestering carbon in cropland are: Experimental methods of sequestering carbon in cropland are:
  
-**Enhanced weathering.**((Beerling,​ D. J. et al. (2018) Farming with crops and rocks to address global climate, food and soil security, //Nature Plants//, http://​nature.com/​articles/​doi:​10.1038/​s41477-018-0108-y)). The slow natural process of chemical weathering of rocks incorporating silicates, eg basalt, involves extraction of carbon dioxide from the air. The resulting compounds alkalinize the soil and eventually run to the sea, countering ocean acidity. There is experimental work on mechanical pulverization of basalt, which is then spread on cropland fields. The hope is that the resulting reactions, enhanced by a great increase of surface area of exposed rock dust, will increase plant growth, counter ocean acidity and sequester carbon. All this remains to be demonstrated. The process is energy intensive and fairly costly.+**Enhanced weathering**((Beerling,​ D. J. et al. (2018) Farming with crops and rocks to address global climate, food and soil security, //Nature Plants//, http://​nature.com/​articles/​doi:​10.1038/​s41477-018-0108-y)). The slow natural process of chemical weathering of rocks incorporating silicates, eg basalt, involves extraction of carbon dioxide from the air. The resulting compounds alkalinize the soil and eventually run to the sea, countering ocean acidity. There is experimental work on mechanical pulverization of basalt, which is then spread on cropland fields. The hope is that the resulting reactions, enhanced by a great increase of surface area of exposed rock dust, will increase plant growth, counter ocean acidity and sequester carbon. All this remains to be demonstrated. The process is energy intensive and fairly costly.
  
 **Biochar application.** Charcoal produced by anaerobic combustion of biomass provides habitat for soil life, and increased water retention. It is a particularly long lived form of sequestration. No-tillage subsurface application of biochar-water slurries minimizes disruption of soil root zone microlife and allows earthworms to slowly mix biochar into topsoils.((Baker No-Tillage Ltd, Fielding http://​www.crossslot.com. This site shows the cross-slot plough that can apply the biochar below the soil surface through a seed drill. **Biochar application.** Charcoal produced by anaerobic combustion of biomass provides habitat for soil life, and increased water retention. It is a particularly long lived form of sequestration. No-tillage subsurface application of biochar-water slurries minimizes disruption of soil root zone microlife and allows earthworms to slowly mix biochar into topsoils.((Baker No-Tillage Ltd, Fielding http://​www.crossslot.com. This site shows the cross-slot plough that can apply the biochar below the soil surface through a seed drill.
all_states_shall_support_improvements_of_soil_health_for_resilient_food_production_and_carbon_sequestration.txt ยท Last modified: 2019/01/20 19:46 by 192.252.163.149