Food land


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Global issues of food and land Development

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  • Ian Sample (2007-08-31). "Global food crisis looms as climate change and population growth strip fertile land". The Guardian. Retrieved 2008-07-23.
  • Ian Sample (2007-08-31). "Global food crisis looms as climate change and population growth strip fertile land". The Guardian. Retrieved 2008-07-23.
  • Food vs FeedKoetke, William H.. The Final Empire: The Collapse of Civilization and the Seed of the Future. 1st. Portland, OR: Arrow Point Press, 1993
  • ^ ILRI (1989), Effectiveness and Social/Environmental Impacts of Irrigation Projects: a Review, In: Annual Report 1988 of the International Institute for Land Reclamation and Improvement (ILRI), Wageningen, The Netherlands, pp. 18–34The Canadian Environmental Protection Act, 1999, Priority Substances List Assessment Report, Road Salts" are environmentally toxic.
  • ony Waters, The Persistence of Subsistence Agriculture, p. 3. Lexington Books (2007).
  •  minimum land needed.rtf
  • My footprint.orgforbes
  • Cyclopedia of American Agriculture ed. by L. H. Bailey (1911), Vol. II—Crops, Chapter V "Crop t many crops.!Management," primarily the history and theory of crop rotation.
  • Food land

    1. 1. LAND AND FOOD ISSUES<br />
    2. 2. ALLEVIATING HUNGER<br />Land Quality<br />Land Policy<br />
    3. 3. LAND QUALITY<br />Good and bad land issues<br />Methods of improving cultivation<br />
    4. 4. LAND QUALITY<br />Good and bad land issues<br />High potential for increase land cultivation in undeveloped areas.<br />2/3 of arable land inAfrica is currently not being cultivated<br />
    5. 5. LAND QUALITY<br />
    6. 6. LAND QUALITY<br />Good and bad land issues<br />
    7. 7. LAND QUALITY<br />Methods of improving cultivation<br />Educating women in farming techniques<br />Roots sustainable agriculture systems<br />Gathering food from our feet<br />For pest control, fallow natures lead<br />
    8. 8. LAND POLICY<br />Politics<br />Unused land<br />
    9. 9. LAND POLICY<br />Politics<br />The impact of political liberalization<br />Land and conflict in Africa<br />Land in the agricultural economy<br />
    10. 10. LAND POLICY<br />Unused land:<br />Increased<br /> offshore<br /> private<br /> ownership<br />
    11. 11. LAND POLICY<br />35,778,800 hectares or 86 million acres<br />Africa size = 7.04 billion acres<br /> <br />Current arable land = 1.5 billion acres<br />6% of arable land is owned by other countries <br />
    12. 12. SUSTAINABILITY<br />Land degradation<br />Total Land Use<br />
    13. 13. LAND DEGREDATION FACTORS<br />Approximately 40% of the world’s Agricultural land has been significantly degraded<br />Nutrient Depletion<br />Soil Salinization<br />Deforestation<br />
    15. 15. LAND DEGREDATION FACTORS<br />Nutrient Depletion<br />Over-Intensive cultivation and poor soil maintenance can limit the topsoil’s ability to replenish itself.<br />Slash and Burn and Soil Salinization are just two example of this<br />Since the 1880’s over one half of the U.S.’s topsoil has disappeared<br />
    16. 16. LAND DEGREDATION FACTORS<br />Soil Salination<br />Cheap, potassium based fertilizers for natural salts on the surface of usable land<br />Most water carries traces amount of salt. Poorly drained irrigation systems and saline watering systems accumulate surface salts and reduce the amount of nutrients future plants will be able to absorb. <br />
    17. 17. LAND DEGREDATION FACTORS<br />Deforestation<br /> Slash-and-Burn Tactics cut down trees to create temporary agriculture, but ruins the land for long-term use. <br />Urban sprawl and commercial development takes up much or the arable land around populated areas as it worth more developed than for agriculture<br />
    18. 18. TOTAL LAND USE<br />In theory, the minimum amount of land it would take to support a person if everyone on earth had a diversified diet like that of the U.S. and Europe is .5 hectares. That’s about the size of a football field. If everyone on earth actually did use the same amount of land for food, however, they would only be able to use .07 hectares per person, with a strictly vegan and limited diet.<br />
    19. 19. TOTAL LAND USE<br />
    20. 20. TOTAL LAND USE<br />Livestock takes considerable amounts of land to produce- approximately 30% of the earth’s total landmass and 40% of all agricultural output. <br />Overgrazing and grain-fed livestock are major factors to soil erosion in the U.S. as well.<br />
    21. 21. TOTAL LAND USE<br />Effective crop rotation can mitigate land degradation effects and maximize land use<br />This, however, isn’t as profitable at larger scales, as more profitable crops can’t be maximized. Arizona soy and cotton cycles are an example of this.<br />
    22. 22. METHODS OF IMPROVEMENT<br />Smaller scale agriculture with private, short term incentives can mitigate land degradation and productivity losses<br />Offsite environmental and economic impacts, however, still need larger policy management, especially in a poor performing market<br />