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| Date: | Fri, 12 Oct 2001 10:40:10 +0530 |
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Dear Members
I am using DSSAT 3.5 for peanut crop growth simulation. The root zone of the crop is 60 cm.Presently I have come across one more difficulty regarding water balance as given below.
The detailed water balance output file shows layer wise moisture content and root zone soil water storage. I tried to calculate root zone soil water storage on the basis of simulated layer wise soil moisture content. However, the simulated and calculated soil water storage are not matching. I do not know how DSSAT calculates soil water storage. Please advise in this regard. A truncated view of the output file is given here for your reference.
Date SoilWater cm3/cm3 Layerwise
SW storage
simulated
0_5
5_15
15_30
30_45
45_60
Layer wise storage, mm
Total SW storage, mm
60_90
SWXD
SW1D
SW2D
SW3D
SW4D
SW5D
Calculated
SW6D
5-Feb-2001
139.0
0.191
0.214
0.241
0.253
0.273
9.55
21.4
36.15
37.95
40.95
146.0
0.284
6-Feb-2001
177.5
0.237
0.264
0.281
0.29
0.303
11.85
26.4
42.15
43.5
45.45
169.4
0.311
7-Feb-2001
153.9
0.2
0.234
0.257
0.268
0.285
10
23.4
38.55
40.2
42.75
154.9
0.295
8-Feb-2001
144.3
0.184
0.22
0.247
0.259
0.278
9.2
22
37.05
38.85
41.7
148.8
0.288
Thanking you.
With best regards.
Pradeep
_________________________________
Pradeep Singh Kashyap, Ph.D.
Research Associate
Department of Agricultural & Food Engg.
Indian Institute of Technology
Kharagpur (WB) - 721 302
India
_________________________________
Tel: 091-3222-83138 (O) 83139 (R)
Fax: 091-3222-82244 & 55303
Alternate E-mail: [log in to unmask]
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