Showing posts with label Natural Vegetation. Show all posts
Showing posts with label Natural Vegetation. Show all posts

Tuesday, October 5, 2010

Natural Vegetation - Problems of Deforestation

Monday, February 11, 2008

Question- Natural Vegetation




How are forests important to us?

- Support diversity of plants and animals.
- Natural habitats for many animals.
- Provide us with resources. (e.g. food, wood, medicine, etc.)
- Part of our natural heritage for recreation, appreciation of nature, etc.)

<- Wild Kang Kong that can be found in the forests.

Wednesday, February 6, 2008

Question- Mangrove Forest

How do the roots of the mangrove trees adapt to the waterlogged soil conditions?

Coastal zone- Sonneratia have aerial roots that are exposed during low tide to breathe.

Middle Zone- Rhizophora have prop roots to provide support for the trees on muddy soil.

Inland Zone- Bruguiera have knee-like roots to provide support on the soft soil.

Monday, February 4, 2008

Question- Tropical Rainforest



Provide some examples of how plants adapt to the low light condition at the lower layers of the rainforest.

(As the canopy layer of the tropical rainforest prevents sunlight from reaching the lower layers of the forest, some plants adapted to the low light condition by growing on the tree branches to get more sunlight.)

- Epiphytes e.g. bird nest ferns grow on tree branches for support to obtain more sunlight.

- Lianas wind round tree trunk and grow upwards to obtain sunlight.

- Parasites grow on plants and take food from them.

- Young trees and other smaller plants grow at gaps of canopy where they can get light.

Friday, February 1, 2008

Natural Vegetation- Monsoons

Explain how monsoons are formed.

Northern hemisphere (Asia)- winter- high pressure
Southern hemisphere (Australia)- summer- low pressure
Wind blows from Asia (high pressure) to Australia (low pressure)
Wind picks up moisture from ocean and bring rain to land
Change in direction half yearly during reverse of seasons

Monday, January 28, 2008

Natural Vegetation- What is Natural Vegetation?





What is Natural Vegetation?
Natural vegetation refers to plants that grow naturally in a place with little or no human interference.

Why is Natural Vegetation important?
Natural Vegetation plays an important role in a forest ecosystem by providing food and shelter for the animals and native people that live in the forest.

Natural Vegetation- Climate