Tropical rainforest Flashcards

1
Q

what is carbon capture and storage?

A

uses technology to capture carbon dioxide emissions from coal-fire power stations and industry

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2
Q

how much could CSS cut emissions by?

A

19%

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3
Q

what happens during CSS?

A

once the carbon is captured the carbon gas is compressed and transported by pipeline to an injection well
it is then injected as a liquid into reservoirs such as aquifers and deposits of fossil fuels

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4
Q

Boundary dam Canada

A

aims to cut c02 emissions by 90%, this is the equivalent to 1 million tonnes of carbon per year.

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5
Q

what are the disadvantages of the boundary dam canada?

A

economic viability - relies on reservoirs being empty
very costly
unsure of future implications

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6
Q

modifying photosynthesis plantation forests.

A

plantation forests which compromise an estimated 7% of global forest area are particularly effective in absorbing c02 compared to natural forests

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7
Q

what are major causes of land use changes?

A

Farming deforestation

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8
Q

what is carbon farming?

A

carbon farming is where one type of crop is replaced by another that has a greater productivity and can absorb more carbon from the atmosphere

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9
Q

what are the several strategies aimed at reducing the rate of deforestation?

A
  1. consumers are encouraged to only buy wood certified by the forestry stewardship council
  2. cou tries and organizsations can offset their carbon emissions through payments. the money then goes to forests being protected
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10
Q

what do grasslands do?

A

offers a global greenhouse gas mitigation potential of 810 million tonnes of co2

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11
Q

what can soil carbon storage in grasslands be improved by?

A

avoidance of overstocking of grazing animals

adding manures and feritlisers that have a direct impact on soil organic carbon

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12
Q

croplands - techniques for improving SOC includes-

A

reduced or no tillage - no ploughing avoid accelerated decomposition of organic matter.
the use of animal manure instead of fertlisisers so biomass can be returned to the soil

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13
Q

forested land and tree crops

A

forests store large amounts of c02 resulting in the amount in the atmosphere

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14
Q

improved transport/aviation practices

A

in 2013 the global aviation industry produced 705 million tonnes of co2

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15
Q

the water cycle in the amazon rainforest

A

precipitation is very high due to high humidity and unstable weather conditions
dense forest canopy intercepts up to 75% of rainfall
out of this 75% half is used by plants and the rest returns to the atmosphere by evapotranspiration and some infiltrates into soils

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16
Q

why is deforestation taking place?

A
  • demand for resources is increasing
  • to make place for commercial farming,mining, logging and settlements
  • to create roads
  • hydroelectric power
  • dams
17
Q

what are some impacts of deforestation upon the water cycle?

A
  • results in less evapotranspiration leading to reduced atmospheric humidity and more water being stored on land
  • water may not infiltrate which will lead to increased run off and possible flooding
  • decrease in precipitation leads to a decrease in river discharge
  • river discharge increases due to increased surface flows which discharge into local rivers
18
Q

why do tropical rainforests play a vital role in the carbon cycle?

A

estimated to store between 80 and 120 billion tonnes of carbon

19
Q

what are tropical rainforests?

A

a carbon sink as they absorb carbon

20
Q

what impact is deforestation having upon the carbon cycle?

A
  1. when forests are cleared for conversion to agriculture a large proportion of the above ground biomass is burnt, rapidly releasing carbon into the atmosphere.
  2. by reducing the amount of trees there is less co2 being absorbed by trees so more in atmosphere.
21
Q

mitigation in the amazon rainforest

A

there are several mitigation strategies to try and mitigate the effects of climate change within the amazon basin

22
Q

what are the 2 national and international agreements?

A

TARAPOTO processes

amazon cooperation treaty organisation (ACTO)

23
Q

TARAPOTO processes

A

began in 1995 forest policy makers from 8 countries identified 12 criteria to help manage the forest sustainably at management

24
Q

national level priorities of the TARAPOTO processes include?

A

investment in research education and technology
existence of policies and a legal framework for land-use planning
environmental protection areas

25
Q

amazon cooperation treaty organisation ACTO

A

aimed at promoting sustainable development
8 member countries
reverse the loss of forest cover worldwide

26
Q

what are the local policies for mitigation in the amazon?

A

the creation of national parks

agroforestry

27
Q

the creation of national parks

A

Jau national park covers and area of over 5.8 million acres and is a UNESCO site

28
Q

Agroforestry

A

the combination of planted trees with annual crops trees in agroforestry systems will hold more carbon than the vegetation otherwise would

29
Q

reforestation

A

in addition to avoiding deforestation environmental change can also be mitigated by planting trees in areas without trees.

30
Q

selective logging

A

only some trees are felled and most are left standing (old trees)
less destroying to the surrounding forest
impact on carbon cycle and water cycle is kept small