Table 2.

Main characteristics of the soils in the two sampling sites

Sampling site	Thouzon	Nozeyrolles
Clay (<2 μm)	129	127
Fine silt (2–20 μm)	299	117
Coarse silt (20–50 μm)	157	54
Fine sand (50–200 μm)	243	111
Coarse sand (200–2000 μm)	173	592
pH (water)	8·93	7·38
Carbon (g kg–1)	16·6	13·0
Nitrogen	1·46	0·865
Total organic matter	28·6	22·5

Masses are given on a dry matter basis (g kg^–1).