Reference soil Mali 6: Arenosol

See also data of unit D1 in "Mali land and water resources", 1983, PIRT, mapscale 1:500.000. *Panicum turgidum is most frequent species. *Sols mineraux bruts d'apport eolien. In the whole soil profile a fine stratification is visible due to colour differences as well as particle size of sand grains. Monthly precipitation data of the period 1919-1985 are available in the file. Windspeed is recorded at a height of 10 meter.
Collection date: 
November, 1986
Soil surveyor: 
Kauffman JH
Gao, 3km W of the Niger River
Climate classification: 

WRB 2006:

WRB 1998:

Ferralic Protic Rubic Arenosol(Eutric Aridic)
Ferrali- Aridic Arenosol(Rubic Eutric)
aridic properties  
ferralic properties  




Ferrali- Haplic Arenosol yermic phase
Cambic Arenosol
ferralic properties  
ferralic properties  
The altitude of the soil profile relative to mean sea level, specified in meters   260 m asl
Regional landform   dune field
Topography of the surrounding country   rolling
Physiographic Unit in the immediate surrounding of the site   dune
The slope refers to the inclination of the land immediately surrounding the site. The measured or estimated slope angle is specified to the nearest per cent   10 %
The physiographic position of the site where the profile is located   upper slope
Form of the slope surrounding the site   convex
Slope Aspect of the site   north
Parent material: 
The main parent rock/ material over which the soil has been formed (1st entry) sediment, unconsolidated
Mode of Accumulation or deposition of parent material (1st entry) eolian sand
Texture of parent material (1st entry) sandy
Soil Depth; depth to which roots can easily penetrate throughout the year 170
Hydrology and drainage: 
Kind of groundwater table no groundwater table observed
Flooding frequency never
Estimated permeablity (class) of least permeable part of the profile high
Drainage Class somewhat excessive
Moisture conditions of the profile: dry from -to 0-170 cm
Land use: 
Current land use at the site semi-natural grassland, grazed
Major crops  
Main type of irrigation  
Rotation scheme  
Vegetation Type;The natural vegetation at the site medium tall grassland
Status of vegetation degraded
Remarks on Land Use / Vegetation VEGETATION: Panicume turgidum is most frequent species
Soil erosion type wind
Intensity of the soil erosion type severe
Surface characteristics: 
Microrelief type: small-scale differences in relief in the direct vicinity of the site  
Microrelief Height  
Rockiness none
Stoniness none
Average size of stones  
Shape of stones (on average)  
Cracks no cracks observed
Slaking of aggregates by tillage, rainfall or frost no surface slaking/crusting observed
Evidence of salt non-saline
Evidence of alkali non-alkaline