KQ3: Flashcards

1
Q

name 3 strategies to protect the carbon cycle

A
  1. Wetland restoration
  2. Afforestation
  3. Agricultural Techniques
  4. Cap and trade
  5. International agreements to reduce carbon emissions
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2
Q

name 3 management strategies to protect the water cycle

A
  1. forestry
  2. water allocations
  3. drainage basin plannings
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3
Q

Briefly describe the role of wetland restoration

A

focuses on raising the water table to form water logged conditions, they can be reconnected to rivers by removal of flood embankments

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4
Q

give reasons why wetlands are important to the carbon cycle

A

they occupy 6 to 9% of the lands surface and contain 35% of the terrestrial carbon pool

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5
Q

give 3 effects of wetland destruction

A
  1. Loss of biodiversity
  2. loss of wildlife habitat
  3. release of CO2 & CH4
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6
Q

restoration programmes in canvas praise showed that wetlands can store on average…

A

3.25tonnes C/ha/ year

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7
Q

how much ha of land is being converted to wetlands I east Cambridgeshire?

A

400ha , this project can help UK reach its target of restoring 500ha of land by 2020

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8
Q

explain the role of afforestation in protecting the global carbon cycle

A

sequester carbon dioxide held in the atmosphere, reduces run off and soil erosion.

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9
Q

Explain how the UNs REDD scheme aims to curb carbon emissions

A

incentivises developinh countries to conserve their rainforests by pacing a monetary value on forest conservation. Project examples such as in lower mississippi

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10
Q

Outline China’s reforestation scheme

A

▪︎began in 1978, with the aims to reforesta 400,000 km of land by 2050
▪︎between 200 0 and 2012, 30,000 successfully planted with non native birch
▪︎combats desertification

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11
Q

outline the 3 agricultural techniques

A
  1. Land and crop management- e.g. Polyculture, introduce strains for rice adapted to drier conditions with less CH4
  2. livestock management- methane inhibitors with feed
  3. manure management- capture CH4 from manure to use as energy
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12
Q

explain briefly how cap and trade works

A

International companies are set annual emissions quotas. If they emit less they can get carbon credits which can be sold on the International market. Carbon offsets are awarded to countries and companies for schemes such as afforestation

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13
Q

what was the aim of the Paris agreement?

A

Reduce emissions below 60% of 2010 levels by 2050. And keep global warming below 2 degrees

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14
Q

why is the Paris agreement not fair?

A
  1. Countries such as India have yet to develop and still undergoing industrialisation l, essential to raise living standards
  2. Europe and North America largely responsible for contemporary global warming and climate change
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15
Q

amazon regional protected areas cover

A

nearly 128 million hectares

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16
Q

between 2000 and 2012, deforestation rates have

A

decreased by 75%

17
Q

how does waste of water occur

A

evaporation and over irrigation

18
Q

name 3 techniques to minimise water loss

A

mulching, zero soil disturbance and drip irrigation

19
Q

how to reduce run off

A

terracing

20
Q

how much of Punjab and Sindh receive water from indus

A

92%

21
Q

how can drainage basin be planned to reduce run off

A

afforestation in uplands and reducing artificial drainage whilst extending permeable surfaces