paper3- Tagia Forest Flashcards
Examples of independence in taiga
-plants gain nutrients from soil this provides nutrients for the animals to eat
-cold climate means plants take slow to grow and decompose this mean they are relatively low in nutrients
How have plants adapted to taiga
-have needles on trees instead of flat leaves this reduces the water loss from strong winds
-cone shaped trees mean that the snow will slide off without breaking branches
-they are evergreen so make best use of available light
What are evergreen trees
Trees that don’t drop their leaves in a particular season
how have animals adapted it the taiga
-animals have thick fur to stay warm e.g. wolves
-animals can move long distances to find food mostly large mammals
-white fur to camouflage in the forest e.g. snowshoes hares
Describe the nutrients cycle in taiga
- most nutrients stored in the litter
-the cycle is slow because of cold, dry climate
What does low biodiversity do to the taiga
-taiga is productive, plants take long to grow
-growing season is very short
-not much food so struggle for survival
-simple structure means not many different habitats this mean there is a smaller variety of animals
Why does deforestation happen in the taiga
-logging for soft wood
-exploitation of fossil fuels
-pulp and paper production
-HEP
-explotiton of mineral
What does acid rain do
-loss of biodiversity
-damages plants, making it harder for them to cope in the cold
-kills organisms in lake sand streams
-can makes soil acidic to support growth
What does pests & diseases do
-cause damage to organisms
-easy for them to spread
-loss of biodiversity
- cause lots of damage
What does wild fires do
-destroy huge number of trees
-loss of habitats this can lead ti deaths if animals
-loss of biodiversity
Describe logging for soft wood
Trees chopped down and used for housing, furniture and matches
Describe exploitation of fossil fuels
Trees are cleared to extract gas and oil from the ground
Conservation methods
-creating a wilderness area
-creating a national park
-sustainable forestry