{[ promptMessage ]}

Bookmark it

{[ promptMessage ]}

T11+Slides

T11+Slides - Gaseous Inputs/Outputs Atmospheric Deposition...

Info iconThis preview shows pages 1–2. Sign up to view the full content.

View Full Document Right Arrow Icon
1 Cation/Anion Exchange Capacity Exchangeable Cations/Anions Microbes Litter Soil Organic Matter Vegetation Mycorrhizae Decomposition Soil Solution Primary minerals Secondary minerals Weathering Synthesis Litterfall U p t a k e Sorbed S o rp tio n D so Leaching Exchangeable Ions Exchange Im m b iliz M in ra liz L f w s h E x u d Gaseous Inputs/Outputs Atmospheric Deposition Wet Dry Atmosphere Biosphere Geosphere Hydrosphere Basic concepts Cations - positive charge (calcium: Ca 2+ ) Anions - negative charge (nitrate: NO 3 - ) Opposite charges attract; like charges repel Origin of Charges on Soil Particles Clay minerals permanent charge pH dependent charge positive and negative charges negative charges are most abundant Soil organic matter pH dependent charge only negative charges Permanent Charge (Isomorphous substitution) Si 2 O 4 Si 4+ x 2 = +8 O 2- x 4 = -8 Net charge = 0 SiAlO 4 Si 4+ x 1 = +4
Background image of page 1

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full Document Right Arrow Icon
Image of page 2
This is the end of the preview. Sign up to access the rest of the document.

{[ snackBarMessage ]}

Page1 / 4

T11+Slides - Gaseous Inputs/Outputs Atmospheric Deposition...

This preview shows document pages 1 - 2. Sign up to view the full document.

View Full Document Right Arrow Icon bookmark
Ask a homework question - tutors are online