Site	N productivity	Abovegr N use	Net N Min
	[g(DW) g-1N yr-1]	[kg N ha-1 yr-1]	[kg N ha-1 yr-1]
Col	11.8	7.6	175
AuF	9	8.1	61
Jez	11	10.87	101
Sch	8.6	9.98	191
Gri	7.5	13.9	110
MdM	23.3	3.45	167
AuP	10.5	3.2	115
Nac	7.2	6.48	80
Wal	11.7	9.52	157
Klo	16.3	2.21	84
Sko	20.6	3.21	81
Ahe	18.6	1.66	61.32
