Summary

Variables monitored in UK Sitka spruce long-term forest monitoring plots

Variables Period Frequency of sampling Llyn Brianne Loch Awe Coalburn Tummel
Foliar sampling and analysis 1995-2005 2 years ✓ ✓ ✓ ✓
2006 Once ✓
2010 Once ✓ ✓
Soil analysis 1995 Once ✓ ✓ ✓ ✓
2008 Once ✓
Soil solution 1995-2001 2 weeks ✓ ✓
2001-2006 2 weeks ✓ ✓ ✓
2007-2008 4 weeks ✓
2009-2010 4 weeks ✓ ✓
Atmospheric deposition 1995-1996 2 weeks ✓ ✓ ✓ ✓
1997-2006 4 weeks ✓ ✓ ✓ ✓
2007-2008 4 weeks ✓
2009-2010 4 weeks ✓ ✓
Increment 1995-2004 5 years ✓ ✓ ✓ ✓
2010 Once ✓ ✓
Crown condition 1994-2007 Annual ✓ ✓ ✓ ✓
2009-2010 Annual ✓ ✓
Leaf area index 2009-2010 Once ✓ ✓
Meteorology 1994-2004 Continuous (automatic) ✓
2009-2010 Continuous (automatic) ✓ ✓
SO2,O3,NOx above canopy 2002 Monthly ✓
SO2,O3,NOx,NH4 below canopy 2002-2005 Monthly ✓ ✓ ✓ ✓
NH4 2000-2006 Monthly ✓ ✓ ✓ ✓
2007-2008 Monthly ✓ ✓ ✓
2009-2010 Monthly ✓ ✓
Ground vegetation 1998-2004 3 years ✓ ✓ ✓ ✓
2004 Once ✓
2010 Once ✓ ✓
Quantitative ground vegetation 2010 Once ✓ ✓
Litter fall quantification 2001-2007 4 weeks ✓ ✓
2009-2010 4 weeks ✓ ✓
Litter fall analysis 2010 Once ✓ ✓
Growth uptake of heavy metals 2003 Single measurement ✓ ✓ ✓ ✓