Plant growth and distribution limiting factors

Which of the following human effects affect plant growth and distribution

• Trampling

• Dancing

• Use of chemicals

• Monocultures

• Eating

What is the optimal pH range for most soil

• 3.0-5.0

• 4.5 - 7.5

• 6.0-10.0

• 3.2-4.4

A limiting factor limits the__________ ____ ________________

A place with suitable conditions for a variety of plants and animals to live in is called a ________________

Biodiversity is the _______________of life in a particular habitat.

What is aeration?

• Drying the plant out

• Allowing more water into the plant

• Introducing air into the soil

• Creating air movement around the plant

write the equation for photosynthesis

Why is water important for plant growth?

• Stops the plant from feeling thirsty

• Water dissolves the minerals in the soil which can be taken up by the roots

• Moisture in the air is absorbed by photosynthesis

• Without water the soil would become waterlogged

Some of the effects of low mineral ions being absorbed are

• Yellow leaves

• Increase in the number of leaves

• Taller plants

• Stunted root growth

Three types of sampling techniques are

• Transects, Quadrats and Point Frames

• Quadrats, Lines and Needle frames

• Grids, Transects and Point Frames

• Needle Frames, Quadrats and Transects