Agriculture and Agri-Food Canada
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AVWAT
Available water capacity in upper 120 cm

Definition

That portion of water in a soil that can be readily absorbed by plant roots; most workers consider it to be the water held in the soil between field capacity and a pressure of up to about 15 bars.
AVWATDOM
Available water capacity in upper 120 cm (dominant soil landscape)
AVWATSUB
Available water capacity in upper 120 cm (subdominant soil landscape)

Classification

CODE CLASS Description
1 50 mm
2 100 mm
3 150 mm
4 200 mm
5 250 mm
6 not applicable (Solonetzic or saline soils)
7 not applicable (High water table)
8 not applicable (Perennially frozen subsoils)
# not applicable (Water, ice, rock)
- not identified

Source

This information was originally found in SLC verson 1.0. It was translated to version 2.2 using a polygon intersection approach (NSDB-ID=CAR016).

effective version 2.2 Source: adapted from Shields et al., 1991
Contact: Head, CanSIS