Flashcards
Intro to Soils
Cards in this deck (18)
- 1The study of soils in relationship to their effects on higher plants is called...Edaphology
- 2What are the 4 major components of soil?1. Soil Minerals (lithosphere)
2. Soil Organic Matter (biosphere)
3. Soil Air (atmosphere)
4. Soil Solution (hydrosphere) - 3A calcareous soil has a measurable quantity of...Calcium Carbonate
- 4What is (generally) the only delivery method of calcium to a plant?Mass Flow
- 5What is the study of the soil as they exist in nature and classifying them based upon their properties?Pedology
- 6What is the name for all parts of the soil?The pedosphere
- 7What is a vertical cross-section of the soil which exposes various horizonsSoil Profile
- 8What are the soil horizons, in order, from surface to depthO - Organic Horizon,
A - Surface Mineral Horizon,
E - Horizon of eluviation,
B - Horizon of accumulation,
C - Parent Material,
R - Bedrock - 9What is a regolith?Everything that constitutes the soil, from the parent material upwards
- 10What is solum?The weathered portion of the soil; A, E, and B horizons
- 11How is the composition of the soil materials ideally distributed?~ 45% minerals
~ 25% air
~ 25% water
~ 5% organics - 12Define: ColloidMaterials consisting chiefly of clay and humus, which play an important role in ion exchange and fertility
- 13How does soil atmosphere differ from that of regular atmosphere?CO2 concentrations are 10-100 times as great as that of regular atmosphere. Soil atmosphere is a dynamic gas mixture.
- 14Soils of humid regions generally have more ______ pH soil solution values and arid regions have ______ pH solution values.Acidic,
Alkaline - 15pH values affect ______ which affects the availability of plant nutrientsSolubility
- 16What are the 3 routes of plant nutrient uptake?1. Root interception
2. Mass flow
3. Diffusion - 17What are the five factors of soil formation?1. Parent Material
2. Climate
3. Living organisms
4. Topography
5. Time - 18—
Information
- Description
- Comprehensive overview of all soil science topics
- Created by
- Cody Payne
- Views
- 13
- Rating