Week 1 Pastoral Systems Flashcards

1
Q

Outline the 6 determinants of pastoral production systems

A

Environment, Economics, Manager Preference, History, Legislation, RISK

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2
Q

Describe changes in pastoral botanical composition from prior to European settlement till today outlining the main factors that led to the changes

A

What is now most of Australia’s most productive land was initially woodlands

Grasses: Tall, C4, high growing points, low grazing pressure, fire to manage

C4 grasses were grazed and cleared
Introduced short and perennial grasses with super
Fert improved pastures and allowed for intorduced perennial species

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3
Q

Outline the main technological advances that have led to our current pastoral industries in southern Australia.

A

Rabbits, kelpie, Sub CLover, Super phosphate, Wool price inc. with korean war, reserve proce abandonned in 1990

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4
Q

Understand the effect climate has on pasture production and animal industry

A

Affects what can grow

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5
Q

Describe three main pastoral zones in Australia and identify some of their defining features

A
High Rainfall Zone 
Eastern Seaboard, TAS, SW WA
Summer - winter dominant
West of GDR - Merinos (fine wool, breading)
Beef (Breeding and some fattening)
30% of total sheep
Hilly country, Acid soils, Large paddocks
East GDR - Beef, Dairy
Mixed farming zone
350-650mm
All 3 rainfall types
55% of sheep
4-6yrs crop, 4-6yrs pasture
Rangelands
less than 250mm Arid
250-350mm semi arid
Semi-natural ecosystem
Larfge-very large properties
Low DSE
Doestic animals eat Shrubs, grasses, trees, herbs 
Little imporved pasture
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