Increased frequency of forest fires in Amazon Forests has led to:
1. fundamental shift in forest’s energy balance
2. structural damage across all canopy layers
3. increased water stress
4. increase in forest’s natural regeneration rate

How many of the above are correct?
(a) Only one
(b) Only two
(c) Only three
(d) All four

Question

Increased frequency of forest fires in Amazon Forests has led to:
1. fundamental shift in forest&rsquo;s energy balance
2. structural damage across all canopy layers
3. increased water stress
4. increase in forest&rsquo;s natural regeneration rate

How many of the above are correct?
(a) Only one
(b) Only two
(c) Only three
(d) All four

ONLiNE UPSC · Accepted Answer

In August alone, Brazil&rsquo;s Amazon region saw a dramatic surge in fire activity, contributing to a total of 8,164 hotspots recorded between July and September, a 221% increase compared to the same period over the past two decades.
Explanation:
1st implication is correct. Forest fires reduce biomass, increase albedo, and alter carbon flux, leading to a shift in the Amazon&rsquo;s energy balance (less carbon sink, more heat release).

2nd implication is correct. Fires affect understory, mid-canopy, and upper canopy, leading to widespread ecological damage.

3rd implication is correct. Fires reduce evapotranspiration and tree cover, weakening the water cycle and increasing drought stress.

4th implication is not correct. Instead, fires slow down regeneration; frequent fires push ecosystems towards grassland/savanna-like conditions.

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Impact of Forest Fires on Amazon Forests

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M Question 1	⏱ 0
Increased frequency of forest fires in Amazon Forests has led to: 1. fundamental shift in forest’s energy balance 2. structural damage across all canopy layers 3. increased water stress 4. increase in forest’s natural regeneration rate How many of the above are correct? (a) Only one (b) Only two (c) Only three (d) All four