Thursday, 11 February 2010

Breathing landscape

London wetland centre
Area: 42 hectares

Animals:

180 species of birds

8 species of bats

500 species of moths + butterflies

Wetland features:

Land was formerly occupied by several small reservoirs

Marshy areas = much moisture in the soil

Have a natural supply of water—Thames River

Wetland ----intermediaries between terrestrial and aquatic eccsystems

Functions:

1. wetlands prevent flooding by holding water, help keep river levels normal and filter and purify the surface of water

2.accept water during storms

3. release vegetative water into rivers—helps feed fish ---balance the human effect on river

4.animal migration + reproduction

Overall : control water flow + cleanse the system

Positive impact on London area

If hot spring is built--- (further connect people and the nature)

ecosystem will change:

wetland : muck filled breeding grounds for pets and dangerous disease.
Affect people in hot springs

Swaps—moving streams,
Dynamic areas

Sometimes are water
Sometimes are land or both

-----daily cycle in wetland water temperature will change , as hot spring
Water will also go back to there reservoirs

-----energy and heat transfer to the air, loss from ecosystem.
------ affect species in wetlands

-----more people enter the wetland may make species feel unsafe--- start to migrate
-----find suitable temperature for both animals inside and people in “hot water”


More information:

Overall numbers of ducks, geese, swans and wading birds spending winter in the uk have doubled since the 1970s -----climate change appears

Hot spring:

Heated air around the energy and heat, and these air will speed widely into the whole wetland ecosystem. Therefore ,helps birds and other species go through the dry and cold weather.

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