按一下以編輯母片副標題樣式

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Vegetation in SFCCGroup members: F.5A Christy ChanF.5C May Chan (5)Kelly Chiu (9)Joyce Ng (26)

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Undergrowth layer –Main features

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Undergrowth layer –Main features

1. Roots• Buttress rootsÞ To provide

mechanical support of trees against weight and wind

Þ To absorb nutrients at once

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Undergrowth layer –Main features

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Undergrowth layer –Main features2. Leaves• Thick & Waxy surfaceÞ To prevent excess

water loss through transpiration

• Oval-shaped• Narrow crown due to

the lack of sunlight• Darker leaves=> To absorb more sunlight

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Undergrowth layer –Main features

12/9/15

Undergrowth layer –Main features

• Height: shortÞ Due to lack of nutrients

from sunlight to grow taller

• Drip-tip leavesÞ To shed the excess water

away• Narrow crown due to the

lack of sunlight• Darker leavesÞ To absorb more sunlight

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Physical constraints on the growth of vegetation in SFCC

Lithosphere• Dry soil (because

of heavy leaching)

Adaptation• Shallow rootsÞ To absorb

nutrients from top soil quickly

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Undergrowth layer –Physical constraints

-Competition of nutrients:There are other type of plants growing near or even on the trees, they have shared the nutrients absorbing in the soil, hence less nutrients can be absorbed from the roots.

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Which vegetation in SFCC impresses you most?

12/9/15

Which vegetation in SFCC impresses you most?

This shrub located beside such a huge tree, mainly all the nutrients in the soil are absorbed by the buttress roots from the huge tree, but this hasn’t hindered the growth of shrub. Therefore, this shrub in SFCC impresses us most because of its strong vitality and adaptation.