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Soil Interpretations Field Project of Soils Patancheru, Andhra Pradesh, India. Environmental Pedology DE Spring 2010 K.S. Winans. ICRISAT Center Patancheru, AP, India. Semi-arid tropical climate Receives approx. 800mm annual rainfall Mean monthly rainfall exceeds mean potential ET

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soil interpretations field project of soils patancheru andhra pradesh india

Soil Interpretations Field Project of Soils Patancheru, Andhra Pradesh, India

Environmental Pedology

DE Spring 2010

K.S. Winans

icrisat center patancheru ap india
ICRISAT CenterPatancheru, AP, India
  • Semi-arid tropical climate
  • Receives approx. 800mm annual rainfall
  • Mean monthly rainfall exceeds mean potential ET
  • Characterized by dry savannah vegetation
  • Avg. min. temperature 19°C and max. temp. 32°C
  • 17°36’N, 78°16’E
  • 500-670 m elevation
slide4

Site 2

Distance apart:

Approx. 1024 m

Elevation @

Site1: 626 m

Site2: 653 m

Site 1

slide6

Approx 25 km to the N, NW we see Manjira river. In the last 10 years a lot of

development has taken place and tributaries of this river no longer flow in to

the study area.

Site1: occurs at the lower pediment of coarse granite gneiss; at the foot slope

Site 2: occurs at shallow depressions-- granite-gneiss complex pediment

covered by basalt outwash or alluvium deposits; at floodplain

slide9

FIG. F

FIG. A

FIG. D

FIG. G

FIG. B

FIG. E

FIG. C

soil 1 alfisol fun features and some interpretations
Soil 1: Alfisol: fun features and some interpretations
  • well drained with moderate permeability
  • moderate to high hydraulic conductivity
  • >150cm seasonal water table depth
  • slight limitation for septic tank absorption fields
  • slight limitation for local roads and streets
  • moderate infiltration rate
  • non to slight erosion
  • occur on gently sloping pediment of coarse grained granite-gneiss basement complex
    • Foot slopes
slide12

FIG. A

FIG. C

FIG. B

FIG. D

soil 2 vertisol fun features and some interpretations
Soil 2: Vertisol: fun features and some interpretations
  • moderate to imperfectly drained with moderate very slow permeability
  • moderate to high hydraulic conductivity
  • 25 to <50 cm seasonal water table depth
  • severe degree of limitation for septic tank absorption fields
  • moderate limitation for local roads and streets
  • mostly flood plain
  • gently sloping
  • moderate infiltration rate
  • non to slight erosion
slide14

Comparison

Similarities

  • Slope
  • Permeability
  • granite gneiss pediment

Differences

  • Concretions
  • Texture
  • Parent materials
    • Old volcanic deposits

vs.

Alluvium deposits