Long term impacts on the carbon cycle and management strategies Flashcards Preview

A2 Geography Earths life support systems > Long term impacts on the carbon cycle and management strategies > Flashcards

Flashcards in Long term impacts on the carbon cycle and management strategies Deck (15)
Loading flashcards...
1
Q

Name some management stratagies

A

Wetland restoration
Afforestation
Sustainable agriculture practices
Control greenhouse emissions

2
Q

What are the threats to wetlands

A

Population growth
Economic development
Urbanisation

3
Q

What do Ramsar sites do

A

Work towards the wise use of all their wetlands

Cooperate internationally on trans boundary wetlands

4
Q

Restoration focus

A

Raising local water tables
Reconnecting wetlands on floodplains to rivers
Reclaimed marshland can be restored by allowing the sea defences to breach

5
Q

What are the threats to forests

A

Logging
Farming
Mining

6
Q

What is afforestation

A

Involves planting trees in deforested areas

Can reduce CO2 levels in the medium and long term and combat GCC

7
Q

UN Reducing Emissions from Deforested and Forest Degredation

A

Incentives developing countries to conserve their rainforest by placing a monetary value on forest conservation

8
Q

Afforestation in China

A

Aim to afforest 400, 000km2 by 2050
Non-native, fast growing species such as popular and birch
Combats desertification and land degradation in the semi-arid expanses of northern china

9
Q

How do agricultural practices threaten the carbon cycle

A

Over cultivation, overgrazing and excessive intensification
This has led to soil erosion and the release of huge quantities of carbon
Livestock production
Padi fields

10
Q

Management - Land and crop management

A
Zero tillage
Polyculture
Crop residues
Avoiding using heavy machinery
Contour ploughing and terracing
11
Q

Management - manure management

A

Control way manure decomposes to reduce amount of methane produced
Capturing methane to use as a renewable source

12
Q

International agreements to reduce carbon emissions

A

GCC affects all countries

Solving the problem requires international cooperation

13
Q

Kyoto protocol 1997

A

Reduction in signed up countries emissions

USA refused to ratify the agreement

14
Q

Paris agreement

A

Reduce global CO2 emissions below 60% of 2010 levels by 2050

15
Q

Cap and trade

A

Alternative, international market- based approach to limit CO2 emissions
Can purchase credits for those who need a bigger quota of other companies