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The Soil Ian Mitchell-Inness
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The Soil Ian Mitchell-Inness

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Soil presentation by South African mob grazing expert Ian Mitchell-Innes

Soil presentation by South African mob grazing expert Ian Mitchell-Innes

Published in: Travel, Technology
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  • 1. ProfitableRanchingStarts with the SoilBy Ian Mitchell-Innes
  • 2. 3
  • 3. • Financial Planning• Grazing Planning• Land Planning• Biological MonitoringHolistic ManagementPlanning Procedures
  • 4. Soil FoodWeb Structurethrough SuccessionIncreasingProductivityF:B = .01F:B = 0.1F:B = 0.3 to 0.5F:B = 0.75F:B = 1.1F:B = 2.1 to 5.1F:B = 5.1 to 100.1F:B = 100.1to 1000.1BareParentMaterial100%BacterialCyanobacteriaTrueBacteriaProtozoaFungiNematodes“Weeds”- HighNitrates- LackofOxygenEarlyGrassesMid-GrassesVegetablesLateSuccessionalGrasses&RowCropsShrubs,Vines,Bushes,CottonDeciduousTreesConiferousTreesOld-GrowthForests
  • 5. • Prairie Grass Species• Used Grasshoppers instead of Cattle• Obtained results of overgrazing• And short duration grazingWayne Burleson’s Experiment
  • 6. Copyright © Community Dynamics, South Africa 15The Tools in DetailGrazing• Overgrazing occurs when a plant is re-grazedwhile it is still growing on stored energy.• Holistic Management® Planned Grazinginvolves the careful planning of animal movesto achieve healthy plants, maintain highanimal performance and to enhance thephysical break down of dead plant matter foroptimal carbon cycling.
  • 7. 16Rest• Rest is the absence or partial absence ofdisturbance to soils and plants by animalsor technology.Copyright © Community Dynamics, South Africa
  • 8. 17Technology• This category includes all human artefactsused to influence aspects of theenvironment.• It is usually the first tool that people turn to.The use of technology will not lead to thecycling of carbon, if used on it’s own.Copyright © Community Dynamics, South Africa
  • 9. 18Animal Impact• The trampling, dunging urinating etc effectsof bunched animals on the soil surface.Copyright © Community Dynamics, South Africa
  • 10. 19Animal ImpactAnimal impact can be achieved through:• HERD EFFECT: bunched animals behavingas under the threat of predators or so tightlybunched that they are not looking where theyput their feet.and / or• STOCK DENSITY: the number of animals ona unit of land at a moment in time.Copyright © Community Dynamics, South Africa
  • 11. 21Fire• The burning off of organic waste andresidual plant material.Copyright © Community Dynamics, South Africa
  • 12. Copyright © Community Dynamics, South Africa 22
  • 13. 23Living Organisms• Adding a living organism will totally changethe dynamics of a community, and usuallyresult in additional organisms moving in tofurther develop the community.• The loss of any organism from a communitywill change the dynamics of the community tosuch an extent that there is likely to be aresultant loss of a mass of other species thatrelied on the presence of that species.Copyright © Community Dynamics, South Africa
  • 14. COMMUNITY DYNAMICS (Succession)35SIMPLE COMMUNITYGREAT FLUCTUATIONBARESOILSOILSURFACECOMPLEX COMMUNITYSTABILITYDegree of variationin populationsSOIL SURFACE CONDITION IS KEYCOVEREDSOIL• PLANT VOLUME& HEIGHTINCREASES• MICRO-ORGANISMS BUILDSOIL STRUCTURE & DEPTH• AGE STRUCTURE ISMORE BALANCEDCopyright © Community Dynamics, South Africa

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