|  | about 4C news 4C guide theory applications publications contact |  | user interface | user manual
### Site and soil parameter file recommended extension: .sop The data will be imported line by line, the following description starting with ! serves only the purpose for a better understanding of the file construction. First mandatory line starts with N (New version) followed by first section, wich describe site conditions. After a blank line, the information of soil layers are listed line by line. After the layer based data no further data from this file are being imported. All other potentially existing lines only serve as information. The number, denoted in nlay , has to agree with the number of layers for which data are being imported.
Section | Variable | Unit | Description
Site description | Only the first value will be read. All characters after this value are optional and for information only.
| Longitude | decimal format | Longitude
| Latitude | decimal format | Latitude
| nlay | - | Number of soil layers; for information in brackets: depth [cm]
| nroot | - | Number of root layers; for information in brackets: depth [cm]
| Ground water level | cm | Ground water depth [cm]
| evaporation depth | cm | Depth of soil evaporation
| Mineralization constant of humus in litter layer | d-1 | Mineralization constant of humus in litter layer per day
| Mineralization constant of humus in mineral soil | d-1 | Mineralization constant of humus in mineral soil per day
| Nitrification constant | d-1 | Nitrification constant per day
Blank line
Soil layer profile | Each layer is described in one line. Number of lines: nlay
| layer | - | Number of the soil layer
| thick | cm | Thickness
| pv | % | Pore volume
| f_cap_v | % | Fiel capacity
| wilt_p_v | % | Wilting point
| dens | g cm-3 | Bulk density
| spheat | J g-1 K-1 | Specific heat capacity of soil [J/(g K)]; it is no longer used as explicit input variable
| phv | - | pH-value
| wlam | - | Texture depending parameter of percolation
| stone | Vol-% | Soil skeleton (stoniness); size of particles > 2mm
| sand | Vol-% | Sand
| clay | Vol-% | Clay
| humus | Mass-% | Humus content
| C_hum | g m-2 | Soil carbon
| N_hum | g m-2 | Soil nitrogen
| NH4 | g m-2 | Ammonium
| NO3 | g m-2 | Nitrate
Example Site and soil parameter file site1.sop ! site1 New Version 13.06 Longitude 52.38 Latitude 10 nlay (200cm) 7 nroot (109cm) 4000 Ground water level (cm) / resp. fakt 10.0 evaporation depth 0.0002 Mineralization constant of humus in litter layer 0.0003 Mineralization constant of humus in mineral soil 0.0025 Nitrification constant
! site1 |
New Version |
13.06 | Longitude
52.38 | Latitude
10 | nlay (200cm)
7 | nroot (109cm)
4000 | Ground water level (cm)
10.0 | evaporation depth
0.0002 | Mineralization constant of humus in litter layer
0.000 | Mineralization constant of humus in mineral soil
0.0025 | Nitrification constant
layer | thick | pv | f_cap_v | wilt_p_v | dens | spheat | phv | wlam | stone | sand | clay | humus | C_hum | N_hum | NH4 | NO3
1 | 7 | 86.94 | 16.41 | 5.41 | 0.18 | 1.8 | 3.29 | 3 | 0 | 0 | 0 | 43.82 | 1742.63 | 67.02 | 0.2 | 0.02
2 | 5 | 44.01 | 22.38 | 1.67 | 1.43 | 0.8 | 3.34 | 0.9 | 2.5 | 85.5 | 6 | 3.41 | 1659.16 | 72.14 | 0.2 | 0.02
3 | 10 | 40.25 | 20.87 | 8.48 | 1.66 | 0.8 | 5.3 | 0.6 | 4 | 81.5 | 7.5 | 1.17 | 1083.65 | 49.26 | 0.2 | 0.02
4 | 10 | 40.25 | 20.87 | 8.48 | 1.66 | 0.8 | 5.3 | 0.6 | 4 | 81.5 | 7.5 | 1.17 | 1083.65 | 49.26 | 0.2 | 0.02
5 | 12.5 | 39.04 | 19.64 | 3.34 | 1.63 | 0.8 | 4.34 | 0.9 | 3 | 75 | 5 | 0.4 | 533.62 | 25.41 | 0.2 | 0.02
6 | 12.5 | 39.04 | 19.64 | 3.34 | 1.63 | 0.8 | 4.34 | 0.9 | 3 | 75 | 5 | 0.4 | 533.62 | 25.41 | 0.2 | 0.02
7 | 25 | 37.5 | 10.9 | 2.5 | 1.63 | 0.8 | 4.8 | 1.5 | 9.5 | 93.5 | 3.5 | 0.15 | 331.91 | 33.19 | 0.2 | 0.02
8 | 41.67 | 38.4 | 13.7 | 5.53 | 1.63 | 0.8 | 5.25 | 1.5 | 1 | 97 | 1 | 0.15 | 605.14 | 93.1 | 0.2 | 0.02
9 | 41.67 | 38.4 | 13.7 | 5.53 | 1.63 | 0.8 | 5.25 | 1.5 | 1 | 97 | 1 | 0.15 | 605.14 | 93.1 | 0.2 | 0.02
10 | 41.67 | 38.4 | 13.7 | 5.53 | 1.63 | 0.8 | 5.25 | 1.5 | 1 | 97 | 1 | 0.15 | 605.14 | 93.1 | 0.2 | 0.02
For information only
Horizon | Depth | Soil type
L/Of/Oh | 0 | humus
Aeh | 5 | Su2
rAp | 25 | Sl2
Bv | 50 | Su2
Bbt+ilCv | 75 | Ss
ilCv | 200 | Ss
###
about 4C | news | 4C guide | theory | applications | publications | contact