Today (31st Aug) wardlis 2 and 4 went to Hardwicke bay to help in the community by planting and landscaping natural flora and its environment. We learnt about how weeds or introduced plants are killing and clearing native flora and thus killing native fauna.
Questions Answered:
Weeds like Whorehound, Cottontail and Iceplant are terrible for the environment because they change the chemical structure of the soil thus making it much harder for native plants to grow. Weeds are spread in a number of ways and for a number of reasons. Animals spread seeds in their fur and feces. Humans spread weeds either for a purpose or by accident: for instance wheat was introduced into Australia to produce food whereas _____ was introduced accidentally for no purpose by way of balast water (its seeds float). Weeds in Australia differ, some are rampant and beyond control while others are being contained. Also, some weeds are useless (bamboo) while others provide food for animals (some pine trees with their pinecones). Climate change may reduce this problem as native Australian plants are specifically adapted to warm to hot temperatures whereas most weeds are european in nature and require cold and wet climes. People volunteer to help
Friday, August 28, 2009
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