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Grizedale Level II plot - Measurements

Variables monitored in UK Oak long-term forest monitoring plots
Variables Period Frequency of sampling Grizedale Alice Holt / Straits Savernake Ardtornish Micheldever
Foliar sampling and analysis 1995-2005 2 years Yes Yes Yes    
2005 Annual   Yes Yes Yes  
2006 Annual   Yes Yes    
2007-2008 Annual Yes Yes      
2009-2010 Annual   Yes     Yes
Soil analysis 1995 Once Yes Yes Yes    
2010 Once   Yes     Yes
Soil solution 1995-2001 2 weeks Yes Yes Yes    
2001-2006 2 weeks Yes Yes Yes    
2007-2009 4 weeks Yes Yes      
2009-2010 4 weeks Yes Yes     Yes
Soil moisture 2007-2008 Hourly   Yes      
2009-2010 Hourly Yes Yes     Yes
Soil temperature 1998-2008 Hourly   Yes      
2009-2010 Hourly   Yes     Yes*
Atmospheric deposition 1995-1996 2 weeks Yes Yes Yes    
1997-2002 4 weeks Yes Yes Yes    
2002-2006 4 weeks Yes Yes Yes V  
2007-2008 4 weeks Yes Yes      
2009-2010 4 weeks Yes Yes     Yes
Increment 1995-2010 5 years Yes Yes Yes    
2004 Once Yes  Yes  Yes  Yes  
2008 Annual Yes  Yes      
2009-2010 Annual Yes Yes     Yes
Permanent girth bands 2008 Monthly Yes Yes      
2009-2010 Monthly Yes Yes     Yes
Phenology (manual) 1995-2007 2 weeks Yes Yes Yes    
2007-2009 Monthly Yes Yes      
2009-2010 Weekly (spring/autumn) Yes Yes     Yes
Phenology (web cam) 2009-2010 Hourly   Yes      
Crown condition 1994-2007 Annual Yes Yes Yes Yes  
2009-2010 Annual Yes Yes     Yes
Leaf area index 2009-2010 Once   Yes     Yes
Meteorology 1994-2009 Daily(manual) Yes Yes      
1994-2008 Continuous (Automatic)   Yes      
2009-2010 Continuous (Automatic) Yes Yes     Yes
SO2,O3,NOx above canopy (diffusion tubes) 2003 Monthly   Yes      
SO2,O3,NOx,NH4 below canopy (diffusion tubes) 2001 Monthly   Yes      
2002-2005 Monthly Yes Yes Yes    
2006 Monthly   Yes      
NO2 1994-2010 2 weeks   Yes      
NH4 2000-2006 Monthly Yes Yes Yes    
2006-2010 Monthly Yes Yes      
Ground vegetation 1998-2004 3 years Yes Yes Yes    
2004-2010 3 years Yes Yes      
2003-2004 Annual       Yes  
2010 Once Yes  Yes      Yes
Quantitative ground vegetation 2010 Once Yes Yes     Yes
Litter fall quantification 1998-2002 2 weeks (autumn) 4 weeks (winter-summer) Yes Yes      
2002-2008 2 weeks (autumn) 4 weeks (winter-summer) Yes Yes   Yes  
2009-2010 2 weeks (autumn) 4 weeks (winter-summer) Yes Yes     Yes
Litter fall analysis 2009 Once Yes Yes     Yes
Growth uptake of heavy metals 2003 Single  measurement Yes Yes Yes Yes  

Key

  • V – Volume of throughfall only recorded.
  • * – Fortnightly at Micheldever.