These Farmers Slash and Burn Forests—But in a Good Way. In the dark, unfurnished room where Chaiprasert Phokha sits, in a house on stilts, a sunbeam falls through the pane-less window and fills a glass jar with amber light.
Phokha leans his wiry body into the light and pops the vacuum-sealed lid off the jar. With an encouraging nod, he passes it to me. Providing an Alternative to Slash and Burn Agriculture – Resilience. Slash and burn. Slash and burn (a specific practice that may be part of shifting cultivation or swidden-fallow agriculture) is an agricultural procedure widely used in forested areas.
Although it was practised historically in temperate regions, where it was termed assarting, it is most widely associated with tropical agriculture today. Slash and burn is a specific functional element of certain farming practices, often shifting cultivation systems. In some cases such as parts of Madagascar, slash and burn may have no cyclical aspects (e.g some slash and burn activities can render soils incapable of further yields for generations), or may be practiced on its own as a single cycle farming activity with no follow on cropping cycle.
Shifting cultivation normally implies the existence of a cropping cycle component, whereas slash-and-burn actions may or may not be followed by cropping. Slash-and-burn 'improves tropical forest biodiversity' [MEXICO CITY] Slash-and-burn agricultural practices, banned by governments because of the risk of uncontrolled fires, provide better growing conditions for valuable new trees than more modern methods of forest clearance, a study suggests.
Starting in 1996, researchers cleared 24 half-hectare areas of tropical forest in Quintana Roo state, in southern Mexico, using three methods: clear-felling, where most of the trees are cut down; bulldozing; and slash-and-burn, a practice common among smallholders, in which trees are felled, left to dry and then burned, to prepare the land for agriculture. Mahogany seeds and seedlings were then planted and, after 11 years, the researchers compared the sites and found that slash-and-burn techniques had provided the best growing conditions for mahogany. In clear-felled areas, more than half of each area contained tree species of no commercial value, Snook said. In areas cleared by slash-and-burn, 60 per cent of species were commercially valuable. 3 Hidden Dangers of Slash-and-Burn Farming Techniques. Slash and Burn farming techniques are known for their destructive qualities, but rainforest conservationists are finding more dangers that threaten the health of this fragile environment.
In Indonesia, some farming takes place in areas that have been cleared by slash and burn practices. This technique involves cutting trees and vegetation and leaving it on the ground as it falls. After it dries out, the area is set ablaze. What is slash and burn farming? Slash and burn farming is a form of shifting agriculture where the natural vegetation is cut down and burned as a method of clearing the land for cultivation, and then, when the plot becomes infertile, the farmer moves to a new fresh plot and does the same again.
This process is repeated over and over. Slashed and burned slope. Photo by Antony Melville 2007. Maybe about 250 million (they are not easy to count) are forced to eke out a living like that on some of the world's poorest soils. By slashing and then burning tropical forest, these landless farmers can usually sustain themselves for only 2 consecutive years on the same patch of soil.
Deforestation Facts, Deforestation Information, Effects of Deforestation. Modern-Day Plague Deforestation is clearing Earth's forests on a massive scale, often resulting in damage to the quality of the land.
Forests still cover about 30 percent of the world’s land area, but swaths the size of Panama are lost each and every year. The world’s rain forests could completely vanish in a hundred years at the current rate of deforestation. Forests are cut down for many reasons, but most of them are related to money or to people’s need to provide for their families.The biggest driver of deforestation is agriculture. Farmers cut forests to provide more room for planting crops or grazing livestock. National Geographic: Eye in the Sky. The statistics paint a grim picture.
According to the World Resources Institute, more than 80 percent of the Earth’s natural forests already have been destroyed. Up to 90 percent of West Africa’s coastal rain forests have disappeared since 1900. Brazil and Indonesia, which contain the world’s two largest surviving regions of rain forest, are being stripped at an alarming rate by logging, fires, and land-clearing for agriculture and cattle-grazing. Among the obvious consequences of deforestation is the loss of living space. Seventy percent of the Earth’s land animals and plants reside in forests.
Deforestation: Facts, Causes & Effects. Deforestation is the permanent destruction of forests in order to make the land available for other uses.
An estimated 18 million acres (7.3 million hectares) of forest, which is roughly the size of the country of Panama, are lost each year, according to the United Nations' Food and Agriculture Organization (FAO). Some other statistics: Local and Global Effects of Deforestation in the Amazon Rain Forest - National Geographic Society. 1.
Activate students’ prior knowledge about the local and global environmental effects of deforestation. Introduce the activity with a discussion about students’ local area and the organisms that live there. Ask students to brainstorm what roles trees might play in the forest. Then have students brainstorm consequences to the plants and animals that inhabit the local ecosystem if all the trees were removed. Introduce the term deforestation and share that deforestation is of major concern in the Amazon rain forest. Environment vs Development - Amazon: Truth and Myth - BBC. Amazon Rain Forest, Deforestation, Forest Conservation - National Geographic Magazine. Last of the Amazon In the time it takes to read this article, an area of Brazil's rain forest larger than 200 football fields will have been destroyed.
The market forces of globalization are invading the Amazon, hastening the demise of the forest and thwarting its most committed stewards. In the past three decades, hundreds of people have died in land wars; countless others endure fear and uncertainty, their lives threatened by those who profit from the theft of timber and land. In this Wild West frontier of guns, chain saws, and bulldozers, government agents are often corrupt and ineffective—or ill-equipped and outmatched.
Twenty First Century Renewable Energy : Documentary on the Energy of the Future (Full Documentary)