Best practice farming for sustainability 2050 Flashcards
Global challenges to food security
Human population growth
Increasing urbanization
Climate change
Increase in demand for animal proteins
Buy a few production
Landscape degradation and soil erosion
Soil =
Soil =
SPM soil parent material C Climate R relief topographic setting O organism flora fauna T time HI human impact
4 advantages to having native Australian shrubs around the farm
They produce feed stock
Reduce the production of methane
They come back gastrointestinal worms
The shrubs are fairly tall, Animals can get behind them when they’re cold
Soil = the functions of
SPM Soil Parent material C Climate R Relief O Organisim T Time HI Human Interatcio
The critical zone - The Earth ecosystem is an interaction of several spheres
The biosphere - all the living plants and animals and bacteria.
The lithosphere -which are the inorganic components such as the rocks and sediments.
The atmosphere with the gasses and mainly rainwater together with the energy fluxes Such as temperature or solar radiation.
The hydrosphere - the water and lakes and streams and most important is groundwater in soils and sediment. The area where all spheres interact is defined as the critical zone or the zone that sustains life on earth.
The pedosphere
The soil zone is located in the center of the critical zone.
It is extremely thin compared to the dimensions of the earth and the atmosphere, which is only about 1 to 2 meters in thickness.
How much more water is used for agriculture than personal and municipal
10 times more for agriculture
The water balance
P precipitación
I irrigation
U upward capillary flow
E evaporation T transpiration R run off D drainage to groundwater Lateral groundwater flow
How much will food man grow by 2030 and 2050
2030 - food demand is predicted to increase by 50%
2059 - by 70%
No till cropping
Is not using tila to disrupt the soil and help keep moisture in soil
No till cropping
Is not using tila to disrupt the soil and help keep moisture in soil
How much world food calories come from plants
85% of the worlds human food calories come from plants
How has climate change affected we crops in Australia
It has stalled yield improvements since 1990
How much has animal, meat, diary and eggs increased in production in 50 years
It has doubled
Generation interval
The time it takes to cross parents in the current cycle to a superior breed and crossing them as new parents for the new cycle
