Question

the moisture of the soil can be retained by the process of___________​

Answer 1

the moisture of the soil can be retained by the process of retenion.

Answer 2

Activity:

soil moisture

Soil moisture is the water stored in the soil and is affected by precipitation, temperature, soil characteristics, and more. These same factors help determine the type of biome present, and the suitability of land for growing crops. The health of our crops relies upon an adequate supply of moisture and soil nutrients, among other things. As moisture availability declines, the normal function and growth of plants are disrupted, and crop yields are reduced. And, as our climate changes, moisture availability is becoming more variable.

Materials:

• Sponges with different pore sizes
• Dry soil materials: sand (play sand or sand from a beach or dune), topsoil (from a lawn or garden), cat litter
• Trays or baking dishes to hold water and wet sponges
• 250-ml clear containers (Use graduated beakers, if available.)
• Balance (0.1 g sensitivity, at least 400 g capacity)
• Ruler (SI units)
• Calculator
• Computer with internet access.

Procedure:

• This set of activities introduces students to the basic properties and measurements of soil water, and how the global distribution of soil moisture is monitored.
• Younger students will use sponges and soil materials to learn how and where soils hold water, how they release it, and the concepts of gravimetric and volumetric water content.
• Older students will collect data using the GLOBE Gravimetric & Volumetric Soil Moisture Protocols to collect ground-truthing (in-situ) data for the SMAP program. They will assist scientists by collecting data at a small/local scale in order to validate the SMAP satellite data