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Home / research / Integrated forest monitoring / Intensive long term monitoring of forest ecosystems (Level II) / Location of intensive long term monitoring of forest ecosystems plots in Britain and their summary data / Llyn Brianne Level II long-term forest monitoring plot / Llyn Brianne Level II plot – Measurements
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Foliar chemistry assessment undertaken every 1 to 2 years (Average over 1995 to 2005 period)

  Element Current years growth Previous years growth
Average Standard error Sample size Average Standard error Sample size
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

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