ENV100H1 Lecture Notes - Lecture 10: Pedosphere, Weathering, Hydrosphere

• School: UTSG
• Department: School of Environment
• Course: ENV100H1
• Professor: Helene Cyr

Document Summary

Organic matter parent material material (geology) (rock residual or transported by water, of soil (slow) Forest: most inputs at soil surface; lichens) (high to low: physical weathering, chemical weathering (water, gas, biological weathering (tree roots, weatheringsequence. Fer all night. low productivity; (plants, animals, microbes) Arid and semi-arid: low rainfall, high, sparsevegetation on/in, salt/lime deposition, translocations (water, orgs) Transformations: weathering, aggregation, hydrolysis, oxidation/reduction, soil (saltcrust) with base cations forests bogs) e. g. holland swamp, holland conifers respiration in base cation soil fauna soils, saturated erosion, leaching, Grassland regions humid and humid temperate decomposition : losses, continental. Good for agriculture: waterlogged swamps, peatlands, marsh . Low fertility, al: topography, soil, o horizon: loose, a horizon: mineral matter mixed with, topography fertile. Cool/ cold regions with toxicity (ca2+, mg2+, k+)content profile: o horizon and a horizon are most decayed organic matter and partly important for plants affects soil depth. Colder, wetter soils accumulation of organic matter (acidic) slope: landscape effects.