WLE Salinity Management Framework

Tested on Chrome 38 & 40, IE 11, Firefox

   Introduction

   Why a framework?

• Bio-physical system
• Basin scale
• Irrigation system scale
• Field scale
• Institutional
• Basin scale
• Irrigation system scale
• Field scale
• Social and Economics
• National scale
• Basin scale
• Community scale
• Family scale
• Environmental
• Basin scale
• Irrigation system scale
• Field scale
• Solutions
• Basin scale
• Irrigation system scale
• Field scale
• Tools
• Investment support
• Data systems
• Calculators
• Check lists
• Decision trees
• Salinity wiki
• Library

Long term soil salinity balance (Ritzema):

Long term soil salinity equilibrium, assuming similar climate and irrigation regime, can be calculated using the conceptual water flow system as indicated in the figure below.

The calculations for a long-term equilibrium situation can be done using the calculator below.

Select a data set or enter data manually belowExample 15.7 Ritzema Example 15.1 Ritzema	Read Saved Data
Volumetric Soil Water Content at Field Capacity		%
Depth of root zone		mm
ECe/ECFC Note - the dilution factor from saturation to field capacity		-

Variable	unit	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec	Year
ETact	mm													TotET
Precip	mm													TotP
Irri	mm													TotI
ECi	dS/m													AvgECi
CapRise	mm													TotG
Save your data if you want to have access to them again (not needed to calculate)												Save Input Data
												Calculate
Delta W	mm													TotW
Rx	mm													TotRx
Z1	ECmm													-
DeltaZ	ECmm													DZ
Z2	ECmm													-
ECe	dS/m													AvgECe