Intensive Agriculture - PowerPoint PPT Presentation

1 / 17
About This Presentation
Title:

Intensive Agriculture

Description:

Candice, Chantal, Karina, James, Sean. 4:30. Christina, Michelle, Eva, Natalie, Irene. Michael, Poppy, Caitlin, Vanessa, Claire ... – PowerPoint PPT presentation

Number of Views:125
Avg rating:3.0/5.0
Slides: 18
Provided by: chrisfl
Category:

less

Transcript and Presenter's Notes

Title: Intensive Agriculture


1
Group progress report individual meetings
2
Water - Keystone element
  • Capture
  • Diversion
  • Utilization
  • Renewal

3
Intensive Agriculture
  • From extensive to intensive food procurement
    strategies

4
Transformation of natural cycles
  • Persistent or permanent landscape modification
  • Conscious selection modification
  • Water management
  • Sedentarisation
  • Crop rotation versus swidden cycles

5
  • Shifting worldview
  • New religious systems
  • Diverse sources of energy inputs
  • Mixed animal and plant systems
  • New forms of social systems
  • Social specialization and the emergence of
    agrarian societies
  • Complex integrated systems
  • Administration and authority structures emerge
  • Geographic differentiation town and city
  • Trade and transportation
  • Reduction of leisure time

6
Social differentiation
  • Labour based class systems
  • Wealth differentiation
  • Land owners - land workers - landless

7
Variants
  • Arboriculture (breadfruit)
  • Agropastoralism
  • Agriculture
  • Mixed strategies
  • Self-sufficiency Trade systems

8
The production - social change feedback loop
  • Self sufficiency and social inter-dependency
    linked in agricultural evolution
  • surplus exchange stratification
  • Labour needs in intensive agriculture create
    production demands which lead to labour needs

9
Why Intensify?
  • Changes in population
  • Changes in policy
  • Changes in market
  • Changes in supply-demand
  • How?
  • Increase labour inputs or efficiency
  • Increase land productivity
  • Constant inputs from non-natural sources

10
Energy budget changes
  • Energy budget energy yield - energy input
  • Human inputs (time and labour) increase
  • Output also increases
  • Indirect costs are high
  • Mechanical inputs
  • More productive than human or animal energy
  • Indirect costs lower but require economies of
    scale to be viable

11
  • Renewable energy sources standing biomass
  • Animals, trees, plants
  • Non-renewable energy sources (fossil fuels)
  • of each source used is an indicator of degree
    of industrialization and intensity of production

12
Energy types and sources influence organization
of production
  • Mixed agricultural systems and human inputs
  • Monocroping and mechanization
  • Organization of time

13
Peasantry Surplus
  • Taxation, rent, corvée, sharecropping
  • Political organization
  • Cooperatives
  • Religious movements and enclaves
  • Revolution
  • Self-sufficiency to market engagement
  • Capitalization and efficiency
  • Food sources and security

14
Tamang case study
  • Relatively self-sufficient
  • Mixed herding and agriculture
  • Mixed Buddhist and shamanic practices
  • Highly egalitarian
  • Clan and neighborhood social organization with
    exogamy

15
  • Good example of a vertical ecology
  • Lots of ecological variation with altitude
  • 3 vertical zones
  • Lowest-maize and millet (5300-6000ft)
  • Middle-maize, potatoes, millet, barley
    (6-7000ft)
  • Highest-potatoes and wheat (7-8500ft)

16
Gleaning
Jean-François Millet
17
(No Transcript)
Write a Comment
User Comments (0)
About PowerShow.com