Abnormal simulation results of soil moisture at 1m depth

[zzzggg]

Dear everyone
The compset I used is I2000Clm50BgcCropGs, without modifying src
But I found that when the soil layer is about 1m deep, the soil moisture in some areas is equal to a constant value tending towards 0, and there is no trend of change.
After ruling out many possible reasons, I was very confused that using CLM4.5 simulation at a single point could result in normal moisture changes
Under the condition of ensuring consistent input data, I modified the "LND_TUNIND_MODE" and "CLM-PHYSIC_VERSION" in enw_run.xml to version 4.5
Surface data is created entirely using default data and methods
finidata='clmi.I2000Clm50BgcCrop.2011-01-01.1.9x2.5_gx1v7_gl4_simyr2000_c190312.nc'

The attachment includes the distribution of soil moisture in the shallow (0.1m) and deep (1m) layers of the region, as well as the changes in soil moisture simulated by single point CLM4.5 and 5.0 at the same time and location

At present, I have no direction to explore the causes of this problem and possible solutions. If you have any suggestions or opinions, I would greatly appreciate them

 

[slevis]

@zzzggg is there a chance that you are plotting soil layers characterized as bedrock? See references to bedrock in the documentation, e.g. here:

2.7. Hydrology — ctsm release-clm5.0 documentation

 

[zzzggg]

@zzzggg is there a chance that you are plotting soil layers characterized as bedrock? See references to bedrock in the documentation, e.g. here:

2.7. Hydrology — ctsm release-clm5.0 documentation

Thank you so much! Modifying the Bedrock really did the trick and resolved the issue. I'm truly grateful for your swift and precise response