Topic 4 Element 1 - Site-based Criteria Flashcards

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1
Q

What site appraisals should you do to identify Micro-climates?

A
  • aspect and exposure
  • sun traps
  • wind tunnels
  • heavy shade
  • Frost pockets
  • Rain shadow
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2
Q

What is Aspect and exposure?

A

**Aspect **is the direction in which areas of the garden face.

Exposure determines how much light and prevailing winds are experienced.

Valleys, tall buildings and trees cause differences between aspect and e

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3
Q

What is a sun trap?

A

Suntraps are sheltered areas of the garden that enjoy plenty of sunshine.

Suntraps can extend growing seasons.

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4
Q

What is a wind tunnel?

A

When there is a narrow area or proximity between tall buildings it creates a smaller space for wind to travel. Air pressure drops causing the wind to move faster.

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5
Q

What are frost pockets?

A

Normally dips in the terrain that traps cold air close to the ground.

A garden in a frost pocket is at significant risk of late and early fros

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6
Q

What is a Rain shadow?

A

A rain shadow is where features block rain reaching the soil.

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7
Q

Why should soil depth be a factor to consider when planting?

A
  • stumpy carrots
  • poor drainage

Ideally - minimum of 300mm topoils

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8
Q

Why should texture & Structure of soil be a factor to consider when planting?

A
  • poor drainage
  • inability to work the soil

Ideally - crumb structure, with a loamy texture

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9
Q

Why should soil pH be a factor to consider when planting?

A
  • plants may not tolerate the conditions
  • too high and nutrient availability can be limited

pH6.5 is ideal

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10
Q

Why should drainage be a factor to consider when planting?

A

Phytophora (root rot) can occur
limited micro-organism activity in saturated wet ground

raised beds may be an option

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11
Q

Why should aspect be a factor to consider when planting?

A

Too little light can cause plants to bolt or restricted fruiting
Some plants prefer less light

Ideally - 8-10 hours of sun per day

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12
Q

Why should Topography be a factor to consider when planting?

A
  • soil errosion can occur
  • delayed planting if frosts persist longer in frost pockets
  • wind damage to taller plants
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13
Q

Why should the area of land available be a factor to consider when planting?

A

overcrowding of plants

Training plants vertically can make better use of space.

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14
Q

Why is availability of water a factor to consider when planting?

A

Water is vital for the life and survival of plants.

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