ToPic



   Topic 2009 {its gonna be a blast}
deforestation

I can explain how humans have changed the environment through deforestation. I can identify some possible solutions to deforestation that take into account the streams eco system and human needs.

New Zealand was called “The Land Of Milk And Honey” because it was so green and covered in forest

We have cleared much of the forest that covered Aotearoa to create towns cities etc. Most of it remaining forest is found in mountain places and is not good for farming

Trees hold river banks together so sediment won’t fall into the river and cause pollution in our rivers. The shade of the trees kept the river nice and cool so that insects and fish have a safe and cooling environment to live in. The leaves provided nutrients to the creature living in the river.The algae was kept under control because of all the trees shading the trees.The water clean ,and was full of oxogen because in flew over rocky parts in the river .The streams and rivers had a rocky bed so large amounts of aquatic animals can live in the river or streams haply.

Cutting down trees has created erosion, formed clouds of mud in the water called sediment, and because the trees were cut down there was no shade and the algae was taking valuable oxogen that all of the aquatic animals were depending on get, no oxogen no life in the river or stream,No shade means sun light shining down on the stream making it warm which isn’t good for the life of aquatic animals

deforestation=erosion=sediment=STREAM DEATH!!! :(

This is scary because, what happens in 50 years time wen the worlds biggest rivers are left with nothing but a small trickle.

I also find this scary because no structural plants to hold the bank mean a whole bunch of sediment killing plants and aquatic animals which I find very interesting.

our school is helping by planting more trees

Our school is helping by making a better creek at the end of the north feild 

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