Question

What benefits and negatives does farming in rainforests bring to the rainforest?

Answer 1

Answer:

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Explanation:

Benefits-

There are several benefits of deforestation in the rainforest. The major and most obvious benefit is economic gain. The rainforest is cut down for various reasons, for example individuals clear land in order to build houses as well as to carry out agricultural practices. Both of the examples above relate to economic gain.

64 percent of the deforestation that occurs in rainforests is due to the

farming. Rainforest deforestation allows impoverished farmers to provide for their families. For every patch of land cleared of trees through deforestation, land becomes available for farmers to plant crops and carryout other agricultural practices such as raising livestock. Deforestation allows farmers to practice subsistence agriculture and commercial agriculture as well.

Negatives-

Agricultural use of some rainforest land proves to be a failure because of the nutrient-deficient, acidic soils of these forests. Nevertheless, many commercial agricultural projects are still carried out on rainforest lands, although many of these revert to cattle pasture after soils are depleted. Some floodplain regions, like those of the lower Amazon (várzea), are more suitable for commercial agriculture because annual floods replenish nutrient stores.

Generally forest clearers use slash-and-burn techniques to clear land, but on a much larger scale than traditional practices. Instead of burning a mere 2-10 acres (1-4 ha), agriculturalists burn hundreds to thousands of hectares after felling a tract of forest and leaving it to dry. Burning releases nutrients locked up in vegetation and produces a layer of nutrient-rich material above the otherwise poor soil. The cleared area is quickly planted and supports vigorous growth for a few years, after which the nutrient stock is depleted and large amounts of fertilizer are required to keep the operation viable. Fertilizer may be washed into local streams, affecting fish and aquatic life. When the use of fertilizer is deemed no longer efficient, the land is abandoned and allowed to revert to scrub. Drought-resistant grasses may move in or cattle ranchers may plant imported African grasses for cattle grazing. The land is now only marginally productive and a limited number of cattle can subsist in the area.