Index
- Techniques
- Environmental impact
- Is the technique successful?
- Group opinion
Slash and burn definition:
Slash and burn is a way of shifting the agriculture in which the vegetation is cut down and burned after they have finished, when it turns infertile, they move to a new location and do it all over again, this is done over and over.
This technique has been mainly used in central america and mexico aswell for hundreds of years, the amazons is a good example of this, large areas of the rainforest are protected by law, the 32% of the amazon is under government protection.
There is currently a big discussion between the environmentalists and the people who want to develop of what remains of the amazon, the slash and burn technique is mainly used here as it is a huge are where they can burn the trees down, and plant their crops
Enviromental Impact:
Globally:
- GLOBAL WARMING: causing climate change. This technique increases the amounto of CO2. One of main causes of climate change.
- Soil erosion: cause vegetation problems. The soil then can't hold the tree roots and trees can blow.
- Water resource: forest (trees and plants) are an important water source for water cycles, by absorbing water form rianfalls. It also helps in pollution run off
Locally:
- Loss of species: species who live in those areas can reach to its extinction. Needed for hunting and medicine cars. Plants and animals can also be used for medicinal research.
- Respiratory problems: people in the sorrounidng breathing the smoke from this technique.
- Soil problems: difficulties to crop
Slash and burn technique positive and negative ideas
Positive: clearing the land for cultivation, crop rotation which avoids putting the same plant in the same oil
Negative: in some areas people cut trees and vegetation and leave it as it falls on the ground, the cultivation have been heated up
Bibliography
Daniella Zanin, no publish date. Peace Corps, Michigan Tech University's Master's International Program in Forestry. Inquiry done on the 18th of january 2017 in http://forest.mtu.edu/pcforestry/people/2001/zanin.html
No author, no date of publishing. Forest Wallpapers. Inquiry done on the 16th of january 2017 in http://www.shunvmall.com/forest-wallpaper.html
No particular author, no date of publishing. Deforestation, Learn about the man-made and natural causes of deforestation–and how it's impacting our planet. Inquiry done on the 16th of january 2017 http://www.nationalgeographic.com/environment/global-warming/deforestation/
Scott Wallace, no date of publishing. Farming the Amazon. Inquiry done on the 16th of january of 2017 in http://environment.nationalgeographic.com/environment/habitats/last-of-amazon/
BBC Earth, 14th April 2011. Environment vs Development - Amazon: Truth and Myth - BBC. Imquiry done on the 16th and 18 th of january of 2017 in https://www.youtube.com/watch?v=feLqh4juPqY
Collin Dunn, November 19, 2009. Inquiry done on the 18th of january in treehugger.com