Carbon + water Cycle Flashcards
(24 cards)
River itchen in Winchester
Precipitation
800 mm annual rainfall slight increase during winter
Meaning less of our transpiration during winter more flooding
River itchen in Winchester
Topography/drainage basin
Small drainage basin
Cause the river to be flashy shortening lag time steepening rising
River itchen in Winchester
Vegetation cover
Chalk grasslands
Woodlands wetland
Can easily infiltrate through permeable chalk grass lands
River itchen in Winchester
Rural land use
Arable land (growing crops)
River itchen in Winchester
Urban land use
Residential areas
Causing surface run-off from impermeable roads A33
River itchen in Winchester
Soil
Sandy/loamy-permeable
Slow to reach the channel as most of the water is infiltrated
Subdued graph
River itchen in Winchester
Geology (rocks)
Mostly chalk very permeable catchment
River itchen in Winchester
Ground water
Significant aquifer as the ground water store is large
This is significant due to the porosity of chalk less surfers run-off
River itchen in Winchester
River facts
42km long
Rare extreme habitat
River itchen in Winchester
Flooding events
Last major flood 2014
River itchen in Winchester
What is the name of the reservoir being built and why is it being built?
Harvard thicket reservoir
Is being built because of the challenges of water in Hampshire as they are in water stress also to preserve the chalk aquifer that water is being extracted from
River itchen in Winchester
How much does the reservoir cost?
Havant thicket reservoir cost £340 million in construction fees
Reasons why they havant thicket reservoir is being built 4 reasons
1.Population growth
2.Climate change 20% reduction of summer water
3.Urbanisation Barton farm 250 acres
4.Water stress Southampton extract 100% of his water from rivers
How much water does the Havant thicket reservoir hold? What else does it do
8.7 billion litres
Creates park for activities
Wetlands
Deforestation globally
13 millionha cut down and converted into other land use every year
Losing 200 km of land a day
Urbanisation globally
6% global greenhouse gas emissions come from buildings
1.3 million per week
47% global carbon emissions come from cities
Where is the Amazon rain forest
South America in nine countries
Explain the importance of the Amazon tropical rainforest
300 billion trees
15,000 species
67million ha
So 1/5 of the worlds carbon in plants biomass
Explain the scale of the carbon store on the Amazon rainforest
76billion tonnes of carbon in 2019
So 1/5 of the worlds carbon in plants biomass
Give details of the Amazon water store
2,000 mm rainfall
Amazon River basin has 20% of the worlds freshwater (in river discharge)
Effects of deforestation on Amazon rainforest
30% decrease of carbon dioxide absorption from 2019 2014
One region emits 1.5 billion tons
And absorbs 0.5 billion tonnes of
Mitigation for impacts of climate change to Amazon forest (4)
Afforestation (earth institute 30 years)
Deter satellite monitoring
Establishing property rights
Redd pain land owners not deforest carbon offset
How does redd work
- A company emits carbon — say from factories, flights, or shipping.
- They buy carbon credits — each credit typically equals one ton of CO₂ they want to “cancel out.”
- REDD+ projects sell these credits, based on how much deforestation they prevent or how much forest carbon they preserve.
- The money funds forest protection, supports local communities, and helps keep the trees — and their stored carbon — in place.
What companys do redd is it bad sometimes
Amazon $180million in credits
Corruption timber laundering
