Llyn Brianne long-term forest monitoring plot - Foliar sampling and analysis

Foliar chemistry assessment undertaken every 1 to 2 years (Average over 1995 to 2005 period)

	Element	Average	Standard error	Sample size	Average	Standard error	Sample size
	Element	Current years growth			Previous years growth
Macronutrients (mg/g)	N	8.22	0.935	45	8.626	1.013	44
	S	228.2	96.51	30	242.9	102.9	29
	P	0.822	0.095	45	0.824	0.099	44
	Ca	0.776	0.118	45	0.893	0.135	44
	Mg	0.529	0.063	45	0.552	0.070	44
	K	4.796	0.541	45	4.764	0.571	44
Micronutrients (μg/g)	Na	110.4	46.00	17	48.42	9.969	17
	Zn	18.77	1.168	45	16.27	0.703	44
	Mn	205.6	16.24	45	220.8	20.48	44
	Fe	99.7	40.16	45	80.54	4.453	44
	Cu	4.077	0.193	45	3.972	0.108	44
	B	15.59	1.453	17	16.205	1.271	17
Trace metals (μg/g)	Al	140.2	8.714	45	170.6	8.952	44
	Ni	1.888	0.224	25	1.312	0.233	25
	Co	0.160	0.066	5	0.111	0.033	4
	Cd	0.023	0.007	20	0.016	0.008	20
	Cr	0.208	0.041	20	0.283	0.054	20
	Ti	3.407	0.427	15	5.218	0.5105	15

ND: no data recorded

Llyn Brianne long-term forest monitoring plot – Foliar sampling and analysis