growing space and growth factor gradients

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Growing space and growth factor gradients

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Growing space and growth factor gradients. Controlling disturbances is how we control competition. Competition. Growth factors Consider light and water (aboveground and belowground). TULIP POPLAR. VIRGINIA PINE. MESIC SOIL. DRY SOIL. MESIC SOIL. DRY SOIL. GROWING TOGETHER. MESIC SOIL. - PowerPoint PPT Presentation

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Page 1: Growing space and growth factor gradients

Growing space and growth factor gradients

Page 2: Growing space and growth factor gradients

Controlling disturbances is how we control competition

Page 3: Growing space and growth factor gradients

Competition

• Growth factors

• Consider light and water (aboveground and belowground)

Page 4: Growing space and growth factor gradients

GROWING TOGETHER

DRY SOIL DRY SOIL

DRY SOIL

MESIC SOIL MESIC SOIL

MESIC SOIL

VIRGINIA PINETULIP POPLAR

Page 5: Growing space and growth factor gradients

Light

• PAR–Photosynthetically Active Radiation

• Sun foliage/ shade foliage

• Shade tolerance

Page 6: Growing space and growth factor gradients

20%

LIGHT

0%

PsSun foliage

Shade foliage

Page 7: Growing space and growth factor gradients

20%

LIGHT

0%

Ps

Sun foliage

Shade foliage

Page 8: Growing space and growth factor gradients

Shade Tolerance

Ps

Light

Shade tolerant

Shade intolerant

Page 9: Growing space and growth factor gradients

Water

• Input

• Soil

• Stomates

Page 10: Growing space and growth factor gradients
Page 11: Growing space and growth factor gradients

Perc

ent S

oil W

ater

Heaviness of Texture

Field Capacity Available Water

Unavailable Water

From Brady, 1974

Page 12: Growing space and growth factor gradients

Growing Space• Sunlight

• Water

• Nutrients

• Physical space

Page 13: Growing space and growth factor gradients

• Total growing space

• Available growing space

Page 14: Growing space and growth factor gradients

1200 TPH

Page 15: Growing space and growth factor gradients

640 TPH

Page 16: Growing space and growth factor gradients

250 TPH

Page 17: Growing space and growth factor gradients
Page 18: Growing space and growth factor gradients
Page 19: Growing space and growth factor gradients

Total growing space

• Depends on time and place

– Macro and Micro conditions

Page 20: Growing space and growth factor gradients
Page 21: Growing space and growth factor gradients

Available Growing Space

• Grow

• Regeneration

Page 22: Growing space and growth factor gradients

Thinned

Unthinned

Page 23: Growing space and growth factor gradients

LatewoodEarlywood

Page 24: Growing space and growth factor gradients

No Available Growing Space

• Repartition

• Competition