OBJECTIVE FORESTRY

FORESTRY

SOIL SCIENCE

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
Which holds more water?
A
large particles
B
smaller particles
C
Either A or B
D
None of the above
Explanation: 

Detailed explanation-1: -Soil made up of small particles will hold more water as compared to soil made up of bigger particles. This is because small particles pack closely which increases water retention capacity of soil. Q.

Detailed explanation-2: -In terms of soil texture, those made up of smaller particle sizes, such as in the case of silt and clay, have larger surface area. The larger the surface area the easier it is for the soil to hold onto water so it has a higher water holding capacity.

Detailed explanation-3: -Clay particles are so tiny and have many small pore spaces that make water move slower (the highest water holding capacity). Sandy soils have good drainage but low water and nutrient holding capacities. Soil texture and water holding capacity affect plant growth.

Detailed explanation-4: -Silt: Silty soils are finer, and smoother in texture and hold the most available water to plants. Sand does not hold any water and clay particles hold water so tightly to the particle surface that plant roots are unable to extract it from the soil.

Detailed explanation-5: -The larger the soil particles, the more air they can retain. However, larger soil particles retain less water as compared to smaller soil particles.

There is 1 question to complete.