• 9964432222
  • Mail Us
  • Appointment
  • Locate Us
  • Chat Now
  • Courses
  • Login
  • Register
Manifest IAS
JournalsOfIndia
Manifest Learning Academy
  • Home
  • SNIPPETSfor Prelims
  • ARTICLESfor Mains
  • BROWSEBY SOURCE
  • DOWNLOADS
No Result
View All Result
  • Home
  • SNIPPETSfor Prelims
  • ARTICLESfor Mains
  • BROWSEBY SOURCE
  • DOWNLOADS
No Result
View All Result
JournalsOfIndia
No Result
View All Result
Home Geography

Bushfires

September 14, 2020
in Geography
Reading Time: 3 mins read
0
Bushfires
140
VIEWS
Share on WhatsAppShare on TelegramShare on Facebook
image_pdfMake PDF

Dozens of fires erupted in New South Wales, Australia, prompting the government to declare a state of emergency in November 2019. Fires rapidly spread across all states to become some of the most devastating on record. An area about the size of South Korea, roughly 25.5 million acres, had burned.

Features of Bushfires

  • Bushfires are fires that burn through areas of bushland. They are a type of wildfire, fires that burn through wild vegetation like woodland, scrubland, grassland or savannahs. These fires are unpredictable and difficult to control.
  • These fires are particularly common in areas that experience hot, dry weather, like Australia, Greece, Africa and parts of the USA, like California.
  • Bushfires are actually part of an important natural cycle. Flames can kill insects and diseases that harm trees. Low intensity fires burn dead or decaying debris on the ground which helps return nutrients to the soil. 
  • Fires also make space for new shoots to grow, and for more sunlight to reach the ground, creating a valuable food source and new habitat for animals and birds.
  • Bushfires become dangerous when they grow out of control and encroach on communities. 
  • The flames can burn through buildings, and breathing in the smoke from fires can be harmful. Windy weather conditions can fan the flames, spreading the blaze more quickly. 

Causes of Bushfires

  • They can start naturally, when lightning strikes and ignites dry plants and trees, like the golden wattle tree. 
  • But they can also be caused by people, for example, by someone not extinguishing their campfire properly.
  • Climate change doesn’t start bushfires, but it does cause them to become larger and more ferocious. That’s because the warming planet is experiencing more intense periods of drought, drying out the vegetation that fuels the fires. All that’s needed is a spark.

Factors Impacting Bushfires

  • Fuel Load: It describes the amount of fallen bark, leaf litter and small branches accumulating in the landscape. Generally speaking, the greater the fuel load, the hotter and more intense the fire.
  • Fuel Moisture: Dry fuel will burn quickly, but damp or wet fuel may not burn at all. As a consequence, the time since rainfall and the amount of rain received is an important consideration in assessing bushfire danger.
  • Wind Speed: Wind acts to drive a fire by blowing the flames into fresh fuel, bringing it to an ignition point and providing a continuous supply of oxygen. Wind also promotes the rapid spread of fire by spotting, which is the ignition of new fires by burning embers lofted into the air by wind.
  • Ambient Temperature: The higher the temperature the more likely it is that a fire will start or continue to burn. This is because the fuel is closer to its ignition point at high temperatures and pre-heated fuel loads burn faster.
  • Relative Humidity: Dry air promotes a greater intensity fire than moist air. Plants become more flammable at a low humidity because they release their moisture more easily.
  • Slope Angle: Fires pre-heat their fuel source through radiation and convection. As a result, fires accelerate when travelling uphill and decelerate travelling downhill. The steepness of the slope plays an important role in the rate of fire spread. 
image_pdfMake PDF
Tags: Prelims

Related Posts

Huge deposits of Uranium found in Rajasthan

Huge deposits of Uranium found in Rajasthan

July 1, 2022
Cosmic cannibalism

Cosmic cannibalism

June 29, 2022
Bedti-Varada project

Bedti-Varada project

June 25, 2022
Theri desert of TamilNadu

Theri desert of TamilNadu

June 21, 2022
Warming of Barents Sea

Warming of Barents Sea

June 20, 2022
New map of Earth’s tectonic plates

New map of Earth’s tectonic plates

June 17, 2022
Yankti Kuti valley

Yankti Kuti valley

June 10, 2022
Nechiphu tunnel

Nechiphu tunnel

May 31, 2022
Amalthea moon

Amalthea moon

May 16, 2022
Marsquake

Marsquake

May 12, 2022
Please login to join discussion

Our Offline Classroom Student

PRELIMS 2021 POLITY QUESTIONS ANALYSED

https://youtu.be/5q8hBcRGhAs

PRELIMS 2021 HISTORY QUESTIONS ANALYSED

https://youtu.be/v0SIZ7SUybg

CONGRATULATIONS TO 2021 TOPPERS !!!

Rank 171 Kumar Shivashish
Rank 250 Sahithya
Rank 263 Sumit Kumar Thakur
Rank 311 Deepak Ramachandra Shet
Rank 455 Ravinandan B M

July 2022
MTWTFSS
 123
45678910
11121314151617
18192021222324
25262728293031
« Jun    

Browse by Category

  • Agriculture
  • Disaster Management
  • Economy
  • Environment
  • Ethics
  • Foreign Affairs
  • Geography
  • Governance
  • History
  • Law & Policy
  • Opinion
  • People in News
  • Places in News
  • Science & Tech
  • Security
  • Society
  • Sports
  • Uncategorized

Browse by Tags

AIR BBC Business Standard CNN Deccan Herald DownToEarth Down to Earth DTE Economic Times ET GS-1 GS-2 GS-3 GS-4 Hindustan Times IE India & the world Indian express India today Indiatoday Kurukshetra LiveMint Mains News Newspaper News Paper PIB PIB & The Hindu pre Prelims PRS India RSTV Science Reporter Survey The Hindu The Hindustan Times The India Express The Indian Express The New Indian Express Times of India TOI TOPPERS UNDP website Wikipedia Yojana
JournalsOfIndia

Our vision is to orient the readers to grasp the facts objectively and analyse critically. In the rush of reaching first to the readers, the websites miss the balanced opinion, which is the need of the hour. We aim to reach the readers with more crispness, preciseness and relevance. We bring the articles in UPSC way for the civil services aspirants and the Wisest Way for general readers.

Categories

  • Agriculture
  • Disaster Management
  • Economy
  • Environment
  • Ethics
  • Foreign Affairs
  • Geography
  • Governance
  • History
  • Law & Policy
  • Opinion
  • People in News
  • Places in News
  • Science & Tech
  • Security
  • Society
  • Sports
  • Uncategorized

Browse by Tag

AIR BBC Business Standard CNN Deccan Herald DownToEarth Down to Earth DTE Economic Times ET GS-1 GS-2 GS-3 GS-4 Hindustan Times IE India & the world Indian express India today Indiatoday Kurukshetra LiveMint Mains News Newspaper News Paper PIB PIB & The Hindu pre Prelims PRS India RSTV Science Reporter Survey The Hindu The Hindustan Times The India Express The Indian Express The New Indian Express Times of India TOI TOPPERS UNDP website Wikipedia Yojana

Newsletter

The most important UPSC news and events of the day.

Get Journals daily newsletter on your inbox.

© 2020 JournalsOfIndia - A free initiative by Manifest Team.

  • Login
  • Sign Up
  • Home
  • SNIPPETS
  • ARTICLES
  • BROWSE
  • DOWNLOADS
No Result
View All Result

© 2020 JournalsOfIndia - A free initiative by Manifest Team.

Welcome Back!

Login to your account below

Forgotten Password? Sign Up

Create New Account!

Fill the forms bellow to register

All fields are required. Log In

Retrieve your password

Please enter your username or email address to reset your password.

Log In