Please enable JavaScript.
Coggle requires JavaScript to display documents.
GROWING DEMAND FOR RESOURCES - Coggle Diagram
GROWING DEMAND FOR RESOURCES
LAND USE COVER
demand
population increase = economic developnet
climate change = change weather patterns - water scarsity
pressure on fiid sources
deforisation carbon
impact on terrestrial carbon stores
less photosythesis- less absorbed co2
more co2 in atmosphere
ground decomposes and reslease co2
deforistaion water
reduction in interception and infliteration
increase surface run off
increase flood risk
reduction of anusal rain fall from less evapotranspiration
afforiation
veg = significant for carbon cycle - photosythesis
replantin
counteracts neg impacts of deforitation
increase infliteration and perculation
reduces co2 in atmosphere
deforiation examples
madagaster
1950s to meet tropical hard wood demand
forest decreased by 2/3 in 1950-1985
FOREST LOSS
human implication
palm oil = increasing demand
indiginous and local communicaties have to migrate
economic implications for those dependent on rainforest resourcesand income
threatns ingnous way of life
700 conflict over land in 2016
forest loss
rising demand for them
tropical rainfoest being deforest
need for large palm oil plantations
co2 released
forest protection
high income countries are increasing forests
trpoical region = hihest deforisation
example forest protection
indonesia
reduce deforisation
halters permits to clear forest for timber
suppoted by un and norway govement
1bil fnding
emmisions droped 2%
illigan loging = problem
KUZNETS CURVE MODEL
model
hows how enevrionmental degragation changes with economic growth
economic growth increase = envrionemt degration icrease
start = expoit nature resources to gain money and suuport economic development
country hits point of envrionemt concern action take
take action whicte gdp still icnreases - renewable recyclable eco tourm recyle
eg costa rica
mass deforistion 1950-1980
efforts to reduce deforiationeco tourism
high quality eco tourism
OCEAN ACIDIFICATION
coral reef
algea lives in tissue of coral
algea allows coral to photosythesis
algea gives coral bright colours
coral surves i 23-29 c
coral bleaching = walm water - algea ejected from coral making it white
climate change = coean temp rise
acidic water = coral disintergrate
impacts on life
no coral reef = animal dependent on then
coral shelters 25% marine species
coral provide shoreline protection from storms and large waves
toursm thrives of coral
ocean acidification
co2 absored into ocean = decrease ph
high co2 = carbonic acid
need some carbon but currently too much
TEMP ON WATER AND CARBON
drainage basin store
high temp = rise in evapotransipration and water vapour
more rain then snow
snow melt earlier
alter river regimes
high rain and snow melt
thawing permafrost
increase evaporation
increase evopration due to temp
wet get wetter
dry get drier
changes in air circulation - tropical storms moving away from equatoy
example yukon
north west canda
parts in artic circle
higher rates of winter precipitaion
reduce ice coverage
glacial retreat
THREAT TO OCEAN HEALTH
developing nations
poorer = devpendent on ocean for food and income
climate change = coast chnages - species and foodchain
north atlantic = increase emp- impacts rest of food chain
coast protection
mangoves protect coast with roots and binidn sediment protecting from erosin and storm
50% man groves lost since 1950 due to tousn
tourism
coral reeds scuba diving
spiral of decline
oil spills
CLIMATE CHANGE
frequent droughts
shift in climate zones
arid and semi arid = expand furthe eg sub saharah africa
europe and west asia= high drought risk
change to climate belts
air circualtion effected
low presure and high rain at equator
high pressure and low rain at 30d s and n
chnage in precip
human cause
enhanced greehouse effect
increase global temp
burning fossil fules
carbon stores reduced
AMAZON
drough
2005 and 2010
2015 = worst in 80 yrs
rainforest and veg hold 17% worlds terestrail veg carbon
trees die
plant growth decline
lose ability as carbon sink
forest fires