mod-i-sec_b_presentation.ppt heue8r88rhrhruir8turjriirriurutu

Durirhbtititi

1. Sep 16, 2024 Towards a Sustainable Agriculture 1
AA SystemSystem is:is:
a regularly interacting or interdependent group of items
forming a unified whole

2. Sep 16, 2024 Towards a Sustainable Agriculture 2
AnAn EcosystemEcosystem is:is:
the interactions of
•energy
•living organisms
•the physical environment in a geographic
location

3. Sep 16, 2024 Towards a Sustainable Agriculture 3
EcosystemsEcosystems
•Get, transform, and waste energy
(sunlight, food, fossil fuels…)
•Recycle, lose, and get nutrients
(nitrogen, phosphorus, potassium, etc.)

4. Sep 16, 2024 Towards a Sustainable Agriculture 4
EcosystemEcosystem
organisms
nutrients energy
sun
energy
energy
nutrients
organisms

5. Sep 16, 2024 Towards a Sustainable Agriculture 5
An An Agro-ecosystemAgro-ecosystem is:is:
an ecosystem that is
managed to produce
food or fiber

6. Sep 16, 2024 Towards a Sustainable Agriculture 6
AA Food SystemFood System is:is:
the way that food moves
from the farm to the consumer

7. Sep 16, 2024 Towards a Sustainable Agriculture 7
Parts of a food systemParts of a food system
•Production (how the food is grown)
•Processing (cleaning, butchering, manufacturing,
packaging, cooking, etc.)
•Distribution (how the food is moved from the
farm to the eater)
•Consumption (how and where the food is eaten)
•Waste management (does it go to a landfill? A
sewage treatment plant? Back to the farm? Does it pollute?