Alice Holt/Straits Level II plot - Measurements

 

Variables monitored in UK OAK long-term forest monitoring plots	Starting year	Frequency of Sampling (S) and Analysis (A)	Alice Holt / Straits	Ardtornish	Grizedale	Savernake
Foliar sampling & analysis	1995	2 years S & A
	2002	Annual
Soil analysis	1995	10 years S & A
Increment	1994/5	5 years S & A
	2004	5 years S & A
Crown condition	1995	Annual
	2002	Annual
Meteorology	Manual: various dates	Daily
	Automatic Weather Station: 1995	Half hourly
	Mast: 1998	Half hourly
Atmospheric deposition	1995	2 weeks S 4 weeks A
	2002	2 weeks S 4 weeks A		V
Air quality monitoring: Diffusion tubes on mast above and below canopy	NOx: 2001	Monthly
	SO2: 2001	Monthly
	O3: 2000	Monthly
Air quality monitoring: Lone-standing diffusion tubes	NOx: 2002	Monthly
	SO2: 2002	Monthly
	O3: 2002	Monthly
Ground vegetation	1998	3 years S & A
	2001	3 years S & A
	2004	3 years S & A
Litter fall quantification & analysis	1998	2 weeks (Autumn) 4 weeks (Rest year)
	2002	2 weeks (Autumn) 4 weeks (Rest year)
Soil solution	1995	2 weeks S 4 weeks A
Uptake of heavy metals	2003	Single measurement

V – Volume of throughfall only recorded.