TABLE 1.

Properties of the soils analyzed

Soil	% of component			Concn of element (mg/kg)		pH
	Clay	Sand	Silt	Nitrogen	Organic carbon
Ljubljana marsh	6	16.3	77.7	1.3	150	6
Himalaya
6,000 m	0.5	69.5	30	0.50	3.73	5.41
5,600 m	0	80	20	0.85	8.72	5.89
5,400 m	0	68	32	0.84	6.07	5.89
Champ Noël	14.1	19.3	66.6	1.04	9.4	5.89
Nancy	33.3	15.4	51.3	1.7	15.3	5.8