محاسبه گر خصوصیات هیدرولیکی خاک

 
Percent Sand

Percent Clay

Wilting point
(cm³ water/cm³ soil)

Field capacity
(cm³ water/cm³ soil)
Saturation
(cm³ water/cm³ soil)
Sat. hydraulic conduct.
(cm/hr)
Available water
(cm³ water/cm³ soil)
(in water/foot soil)

Enter values for percent sand and percent clay and click on [Calculate]
to obtain the soil properties for the respective sand and clay.

Definitions

is the water content at a matric potential of -1,500 kPa (-15 bars). It roughly corresponds to the lower limit of the Available Water.
This value is expressed in (units³ water/units³ soil).
is the water content at the upper limit of the Available Water or drained upper limit. It roughly corresponds to a matric potential of -30 kPa (-0.3 bars) in most soils and to -10 kPa (-0.1 bars) in sandy soils.
This value is expressed in (units³ water / units³ soil).
AW = (FC - PWP) This value is expressed in (units³ water / units³ soil), or rather, percent water.

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