Help with usersoil

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Shashwat Dhungana

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Jul 12, 2020, 9:22:13 PM7/12/20
to SWAT - Southeast Asia
Dear all,

I am trying to update the usersoil in the SWAT2012.mdb file encompassing my study area. I have downloaded the HWSD soil database from FAO. However, data from FAO contains 52 columns of information while usersoil has 152 columns of information. 

In this context, I am hopeful that not all columns should be filled up right? What are optional and what are absolutely required for SWAT?

For your ready reference, the usersoil file in SWAT2012.mdb contains the following list:

OBJECTID
MUID
SEQN
SNAM
S5ID
CMPPCT
NLAYERS
HYDGRP
SOL_ZMX
ANION_EXCL
SOL_CRK
TEXTURE
SOL_Z1
SOL_BD1
SOL_AWC1
SOL_K1
SOL_CBN1
CLAY1
SILT1
SAND1
ROCK1
SOL_ALB1
USLE_K1
SOL_EC1
SOL_Z2
SOL_BD2
SOL_AWC2
SOL_K2
SOL_CBN2
CLAY2
SILT2
SAND2
ROCK2
SOL_ALB2
USLE_K2
SOL_EC2
SOL_Z3
SOL_BD3
SOL_AWC3
SOL_K3
SOL_CBN3
CLAY3
SILT3
SAND3
ROCK3
SOL_ALB3
USLE_K3
SOL_EC3
SOL_Z4
SOL_BD4
SOL_AWC4
SOL_K4
SOL_CBN4
CLAY4
SILT4
SAND4
ROCK4
SOL_ALB4
USLE_K4
SOL_EC4
SOL_Z5
SOL_BD5
SOL_AWC5
SOL_K5
SOL_CBN5
CLAY5
SILT5
SAND5
ROCK5
SOL_ALB5
USLE_K5
SOL_EC5
SOL_Z6
SOL_BD6
SOL_AWC6
SOL_K6
SOL_CBN6
CLAY6
SILT6
SAND6
ROCK6
SOL_ALB6
USLE_K6
SOL_EC6
SOL_Z7
SOL_BD7
SOL_AWC7
SOL_K7
SOL_CBN7
CLAY7
SILT7
SAND7
ROCK7
SOL_ALB7
USLE_K7
SOL_EC7
SOL_Z8
SOL_BD8
SOL_AWC8
SOL_K8
SOL_CBN8
CLAY8
SILT8
SAND8
ROCK8
SOL_ALB8
USLE_K8
SOL_EC8
SOL_Z9
SOL_BD9
SOL_AWC9
SOL_K9
SOL_CBN9
CLAY9
SILT9
SAND9
ROCK9
SOL_ALB9
USLE_K9
SOL_EC9
SOL_Z10
SOL_BD10
SOL_AWC10
SOL_K10
SOL_CBN10
CLAY10
SILT10
SAND10
ROCK10
SOL_ALB10
USLE_K10
SOL_EC10
SOL_CAL1
SOL_CAL2
SOL_CAL3
SOL_CAL4
SOL_CAL5
SOL_CAL6
SOL_CAL7
SOL_CAL8
SOL_CAL9
SOL_CAL10
SOL_PH1
SOL_PH2
SOL_PH3
SOL_PH4
SOL_PH5
SOL_PH6
SOL_PH7
SOL_PH8
SOL_PH9
SOL_PH10
 
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