GEOLOGY

EARTH SCIENCE

GROUNDWATER

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
Which soil conditions normally result in the greatest amount of runoff? Question*
A
vegetation and steep slope
B
no vegetation and steep slope
C
vegetation and gentle slope
D
no vegetation and gentle slope
Explanation: 

Detailed explanation-1: -In general, when the rate of infiltration and transmission through the soil is higher, the volume of runoff is lower. As a result of low infiltration and transmission rates, fine textured soils, such as clay, produce a higher runoff volume than do coarse textured soils, such as sand.

Detailed explanation-2: -If precipitation is greater than infiltration capacity, surface runoff occurs. If precipitation is less than the infiltration capacity, all moisture is absorbed. When a soil has been saturated by water then allowed to drain by gravity, the soil is said to be holding its field capacity of water.

Detailed explanation-3: -Soil runoff potential describes the likelihood for surface runoff to occur during rainfall or snowmelt. Surface runoff is generated when the movement of water into the soil is slow enough to result in water flow along the land surface and into waterbodies.

Detailed explanation-4: -The least amount of surface water runoff will occur when soil pore spaces are 38.

There is 1 question to complete.