| Variables | Period | Frequency of sampling | Brechfa | Cannonteign | Covert Wood | Kelty | Wangford | Wykeham |
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| Foliar sampling and analysis | 2005 | Once |  |
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| 2007 | Once | |
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| Increment | 2004 | Once | |
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| Crown condition | 1991-2001 | Annual | |
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| 2002-2006 | Annual | |
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| Meteorology | 2002 | Continuous (automatic) | |
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| 2003-2005 | Continuous (automatic) | |
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| 2006 | Continuous (automatic) | |
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| Deposition volume | 2002-2008 | 4 weeks | |
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| 2009-2010 | 4 weeks | |
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| SO2,O3NOx NH4 below canopy (diffusion tubes) | 2002-2005 | Monthly | |
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| Ground vegetation | 2004 | Once | |
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| 2007 | Once | |
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| Litter fall quantification | 2002-2008 | 4 weeks (2 weeks in autumn) |
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| 2009-2010 | 4 weeks (2 weeks in autumn) |
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| Litter fall analysis | 2009 | Once | |
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| Growth uptake of heavy metals | 2003 | Single measurement | |
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Forest Research home > Research > Woodlands & the environment > Integrated forest monitoring > Long term monitoring of forest ecosystems > GB plots and summary data > Covert Wood