The Von Post humification scale describes 10 levels of decomposition (H1 to H10) in peat based on visual characteristics. Levels H1 to H3 show little to no decomposition, with plant structures intact and water runoff clear to light brown. Levels H4 to H6 become moderately decomposed, with plant structures becoming indistinct and water runoff becoming turbid brown. Levels H7 to H10 are strongly to completely decomposed, with plant structures nearly unrecognizable and water runoff becoming thick mud with little free water.
The Von Post humification scale describes 10 levels of decomposition (H1 to H10) in peat based on visual characteristics. Levels H1 to H3 show little to no decomposition, with plant structures intact and water runoff clear to light brown. Levels H4 to H6 become moderately decomposed, with plant structures becoming indistinct and water runoff becoming turbid brown. Levels H7 to H10 are strongly to completely decomposed, with plant structures nearly unrecognizable and water runoff becoming thick mud with little free water.
The Von Post humification scale describes 10 levels of decomposition (H1 to H10) in peat based on visual characteristics. Levels H1 to H3 show little to no decomposition, with plant structures intact and water runoff clear to light brown. Levels H4 to H6 become moderately decomposed, with plant structures becoming indistinct and water runoff becoming turbid brown. Levels H7 to H10 are strongly to completely decomposed, with plant structures nearly unrecognizable and water runoff becoming thick mud with little free water.
The Von Post humification scale describes 10 levels of decomposition (H1 to H10) in peat based on visual characteristics. Levels H1 to H3 show little to no decomposition, with plant structures intact and water runoff clear to light brown. Levels H4 to H6 become moderately decomposed, with plant structures becoming indistinct and water runoff becoming turbid brown. Levels H7 to H10 are strongly to completely decomposed, with plant structures nearly unrecognizable and water runoff becoming thick mud with little free water.
Download as XLSX, PDF, TXT or read online from Scribd
Download as xlsx, pdf, or txt
You are on page 1of 1
SIMPLIFIED VERSION OF THE VON POST HUMIFICATION SCALE
DESCRIPTION
SYMBOL PROPORTION DECAY / NATURE OF LIQUIDS
NATURE OF PLANT EXTRUDED BETWEEN DECOMPOSITION EXPRESSED ON RESIDUES FINGERS LEVEL SQUEEZING Yields only clear water Plant structure H1 None Undecomposed unaltered coloured light yellow- brown Almost clear yellow- H2 None Almost decomposed Plant structure distinct brown
Very weakly Plant structure distinct;
H3 None decomposed most identifiable Slightly turbid brown
Very weakly Plant structure distinct; Yields strongly turbid
H4 None decomposed most identifiable water
Plant structure clear but Strongly turbid contains
Moderately H5 Very little decomposed becoming indistinct a little peat in suspension