Transcript Shifting cultivation!!

Shifting
cultivation!!
Joy, Amy, Joo Yeon
Content:
1. What is shifting cultivation?
2. Characteristics
3. Steps of shifting cultivation
4. Slash and burn
5. The advantages and disadvantages
6. Environmental Effects
7. What can we do to help?
8. Bibliography
What is shifting cultivation?
• Shifting cultivation is a farming system where farmers
move on from one place to another when the land
becomes exhausted.
•Shifting Cultivation is often practiced by primitive
tribes in the forested highlands of the Amazon
Basin, Congo Basin, etc.
•The most common form is slash-andburn
Characteristics of shifting
cultivation
• Making a Clearing.
•Growing Crops.
•Abandoning the Clearing.
Steps of shifting cultivation:
1.Site selection
5.Weeding
2.Slashing
6.Harvesting
3.Burning
4.Cleaning and
fencing
Oh
yeah~
Advantages
Disadvantages
Easy to grow quickly
Environmentally friendly
because it is organic
farming
Not long term
Not good for land that is
used only for one type of
crop
Not enough food
It is often a form of weed
control.
It can play a part in pest
management.
It may reduce the incidence
of soil-borne diseases.
Not cost effective
Troublesome to move
around all the time
Environmental Effects
• Deforestation
• soil erosion
• loss of biodiversity
•pollution of coastal waters from oil residue
and raw sewage.
How can u prevent it from
happening?
• Minimize cultivation as much as possible.
• Try to use less aggressive forms of cultivation.
• Cultivate at an appropriate soil moisture content
(especially when using aggressive implements)
• When you are using implements that mix soil
throughout the cultivation depth, restrict the depth of
working to 5 cm or less.
Bibliography:
•
http://203.110.68.60/documents/sourcebook/Sourcebook_eng/Volume1/09_shi
ftingnamnan_sodarack.pdf (OCT.16th)
This website clearly stated the steps of shifting cultivation with clear
explanations with graphics. We find it very useful and easy to understand.
•
Shifting cultivation
http://library.thinkquest.org/26634/forest/farming/shiftcult.htm ((Oct 15th)
This website talks about the characteristics of shifting cultivation. This is very
useful in our presentation.
•
http://www.raa.nsw.gov.au/reader/vsp-soiltesting/vspd7.pdf?MIvalObj=6707&doctype=document&MItypeObj=application/pdf&name
=/vsp-d7.pdf (Oct 15)
This website stated the disadvantages and advantages that are used in a chart
in our presentation. This websites provides us information to do the
disadvantages and advantages chart.
•
Questions *^o^*
• What is the most common form of
shifting cultivation?
• What are the characteristics of
shifting cultivation?
• What does shifting cultivation affect
the environment?