RAINFOR GEM Intensive Plots Manual (pdf) - University of Oxford

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What are Intensive Carbon Monitoring Plots?To be part of the RAINFOR, AfriTRON or GEM networks, a census should be taken of all trees and lianas above10 cm diameter on a regular basis and the data uploaded to ForestPlots.net in Leeds (Lopez-Gonzalez et al.2011). What we call Intensive Carbon Monitoring Plots are census plots where all components of the carboncycle are measured on a regular basis (e.g. stem CO 2 efflux, litterfall, root growth: see Malhi et al. 2009 for adiscussion of carbon cycle components). Intensive plots were first installed within the RAINFOR network in2007 and have now been installed at locations across all three tropical zones.Map of the GEM network of intensive carbon monitoring plots (see above):http://gem.tropicalforests.ox.ac.uk/Map of the RAINFOR network in tropical South America:http://www.geog.leeds.ac.uk/projects/rainfor/pages/fieldsites_eng.htmlMap of the AfriTRON network in tropical Africa:http://www.geog.leeds.ac.uk/projects/afritron/pages/fieldsites.html4
Where can I get data from existing plots?All census data for the RAINFOR and AfriTRON networks are held on an online application calledhttp://www.ForestPlots.net/ 1 (Lopez-Gonzalez et al. 2011; shown above). This contains all up-to-date censusinformation from more than 800 plots across the tropics 2 , of which 500 have at least one measurement interval(two censuses). Censuses from a selection of these plots are available to registered users for view and download(229 plots as of April 2012; if you agree to the conditions on http://www.forestplots.net/UserAgreement.aspxthen you can register at http://www.forestplots.net/RequestAccess.aspx).Beginning in February 2012, the GEM http://gem.tropicalforests.ox.ac.uk/ online repository is alsoavailable to provide more information on the census plots where intensive carbon monitoring is underway.1 Census data were initially held in a database (Peacock et al. 2007), which was replaced by ForestPlots.net in 2008 (Lopez-Gonzalezet al. 2011). This is a member database of GIVD (http://www.givd.info).2 n.b. all RAINFOR and AfriTRON plots have a unique code consisting of 3 letters and 2 numbers (e.g. TAM-05, CAX-06 indicatingparticular plots at Tambopata, Peru, and Caxiuanã, Brazil). As with all large databases there have been occurrences of inconsistent useof codes in the past, so all plot codes used in new research should be checked against ForestPlots.net to avoid confusion.5
Page 1: Measuring Tropical ForestCarbon All
Page 5 and 6: ContentsTHE RAINFOR-GEM INTENSIVE C
Page 7 and 8: The RAINFOR-GEM Intensive Carbon Mo
Page 9: What are the RAINFOR-GEM protocols?
Page 13 and 14: Two RAINFOR-GEM hectare plots in th
Page 15 and 16: 1.2 Setting out the plotSubplot cor
Page 17 and 18: An example surveying path (cf. Cond
Page 19 and 20: Required for jobs that can be sched
Page 21 and 22: Tree #487 in Fragment E plot where
Page 23 and 24: 1.4 Tagging small trees*** Note tha
Page 25 and 26: does, measure underneath the lean o
Page 27 and 28: Measuring a liana at three points i
Page 29 and 30: BOX 2: Five unusual trees.Example 1
Page 31 and 32: Example 3: Here is a large liana on
Page 33 and 34: 1.5 Tree heightTree height should b
Page 35 and 36: 1.6 Sketch map of the plotAt this p
Page 37 and 38: 2. BELOW GROUND MEASUREMENTSWe star
Page 39 and 40: Next, insert the cylindrical core i
Page 41 and 42: BOX 3: How to make an in-growth cor
Page 43 and 44: 2.2 RhizotronsRoot observation pits
Page 45 and 46: sure that it covers the hole but no
Page 47 and 48: An example rhizotron transparency f
Page 49 and 50: Analysis: First, calculate the sum
Page 51 and 52: A metallic rhizotron as in use at t
Page 53 and 54: 2.3 Coarse rootsNeither in-growth c
Page 55 and 56: 3. CO 2 EFFLUX3.1 Total soil CO 2 e
Page 57 and 58: 3.2 Stem CO 2 effluxFirst, choose t
Page 59 and 60: e related to stem growth) to check
Page 61 and 62:
Equipment: IRGA and SRC-1, PVC coll
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Control No litter Double litterNo e
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the S3 hole. Finally, discard the l
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3.4 Coarse woody debris (CWD) CO 2
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4.2 Coarse woody debris (CWD) surve
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all of the large, marked wood piece
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Equipment: 25 litter traps per ha (
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this select the straight line drawi
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http://www.eci.ox.ac.uk/research/ec
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• The tripod is level so that the
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8. WEATHER AND CLIMATELocal climate
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Luiz Aragão repairing an understor
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10. DATA ENTRY AND SERVER UPLOADA c
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APPENDIX I: RAINFOR-GEM Fieldwork c
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APPENDIX II: How to use an EGM-4 In
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• Remember to change the switch i
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CO 2 efflux calculationsWhile the E
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The volume V airspace (stippled) be
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CO 2 flux measurements with EGM: A
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Downloading dataEGM memory can stor
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APPENDIX III: Possible schedule of
Page 103 and 104:
Gerwing JJ, Schnitzer SA, Burnham R
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RAINFOR GEM Intensive Plots Manual (pdf) - University of Oxford

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