user interface | user manual

Content of user manual

Description of input files

Site depending data files

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; can be any number (for instance -99.9)
	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
10.8	Longitude
50.0	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