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

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FLAG 2: MODE OF DEATH (Enter “1” in this column if the tree is alive)1) Physical mechanism of mortality (How the treedied)a =b =c =d =e =f =g =h =i =k =l =m =Tree died standingStem broken (snapped trunk; record heightof break in Comments)Uprooted (root tip-up)Standing or broken, probably standing (notuprooted) (i.e. between a and b but closer toa)Standing or broken, probably broken (notuprooted) (i.e. between a and b but closer tob)Standing or broken (not uprooted) (i.e.between a and b)Broken or uprooted, probably uprooted (i.e.between b and c but closer to c)Broken or uprooted, probably broken (i.e.between b and c but closer to b)Broken or uprooted (not standing) (i.e.between b and c)Vanished (found location, searched for treebut could not find it)Presumed dead (location of tree not founde.g. impossible coordinates, poor maps)Unknown2) Number of trees in Mortality eventp =q =r =Died aloneOne of multiple deaths in a large eventUnknown3) Killed or killerj = Anthropogenic (human causes, e.g. logging)n = Fire/burnto = Lightnings = Unknown whether killed or killert = Killeru = Killed, no more informationv = Killed by another dead tree with a brokenstemw = Killed by another tree that was uprootedx = Killed by branches from a dead standing treey = Killed by branches fallen from a living treez = Killed by a strangler2 = Killed by a liana3 = Killed by strangler/liana weight (tree diedbroken or fallen; use with ‘z’ or ‘2’)4 = Killed by strangler/liana competition (treedied standing; use with ‘z’ or ‘2’)Note: Select one code from each category. For example a dead tree that is standing, died alone and was killedby lighting would be 'apo'.For multiple deaths the numbers of trees that died should be recorded and written in the comments column.Also see the Mode of Death manual at http://www.geog.leeds.ac.uk/projects/rainfor/pages/manuals_eng.htmlFLAG 3: Measurement Technique0 = Normal/tape measurement1 = Relascope2 = Digital camera3 = Estimate4 = Ladder, with diameter tape5 = UnknownFLAG 4: Data Manipulation0 = Normal measurement, no retrospective modification1 = Extrapolated from previous measurements forwards or finalmeasurement backwards2 = Corrected expected typographical error3 = Interpolated (two good measurements either side of a problemmeasurement)4 = Estimated using median growth rates6 = The POM was changed because it had to be, good measurementbefore.7 = Zero growth rate assumed8 = Another transformation, see notes/ not clear what was doneR = Correction using Ratio between non-affected and affectedmeasurement (i.e. deformation, bark peeling)Note: Only one measurement technique and one data manipulation code should be selected for each tree.Comments: Everything else! If a tree is outside a plot, add to comments, but leave blank in census data.82
APPENDIX II: How to use an EGM-4 Infra-Red Gas Analyser (IRGA)An EGM-4 portable Infra-Red Gas Analyser (IRGA) (right) and an SRC-1 Soil Respiration Chamber (left) for measurement of CO 2efflux, which is the current system of choice for all RAINFOR, AfriTRON and GEM plots (see Pumpanen et al. 2009 for a discussionof alternatives).Stem CO 2 efflux measurements using an EGM-4 and SRC-1 (Maricarmen Ruiz Jaén and Kwame Sekyere in the 50 yrs after loggingplot at Bobiri, Ghana). Note the purpose-built steel adapter ring at the base of the SRC-1 which allows it to be fitted onto the plasticcollar attached to the tree stem 102 .10271
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Measuring Tropical ForestCarbon All
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ContentsTHE RAINFOR-GEM INTENSIVE C
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The RAINFOR-GEM Intensive Carbon Mo
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What are the RAINFOR-GEM protocols?
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Where can I get data from existing
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Two RAINFOR-GEM hectare plots in th
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1.2 Setting out the plotSubplot cor
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An example surveying path (cf. Cond
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Required for jobs that can be sched
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Tree #487 in Fragment E plot where
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1.4 Tagging small trees*** Note tha
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does, measure underneath the lean o
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Measuring a liana at three points i
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BOX 2: Five unusual trees.Example 1
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Example 3: Here is a large liana on
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1.5 Tree heightTree height should b
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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
Page 63 and 64: Control No litter Double litterNo e
Page 65 and 66: the S3 hole. Finally, discard the l
Page 67 and 68: 3.4 Coarse woody debris (CWD) CO 2
Page 69 and 70: 4.2 Coarse woody debris (CWD) surve
Page 71 and 72: all of the large, marked wood piece
Page 73 and 74: Equipment: 25 litter traps per ha (
Page 75 and 76: this select the straight line drawi
Page 77 and 78: http://www.eci.ox.ac.uk/research/ec
Page 79 and 80: • The tripod is level so that the
Page 81 and 82: 8. WEATHER AND CLIMATELocal climate
Page 83 and 84: Luiz Aragão repairing an understor
Page 85 and 86: 10. DATA ENTRY AND SERVER UPLOADA c
Page 87: APPENDIX I: RAINFOR-GEM Fieldwork c
Page 91 and 92: • Remember to change the switch i
Page 93 and 94: CO 2 efflux calculationsWhile the E
Page 95 and 96: The volume V airspace (stippled) be
Page 97 and 98: CO 2 flux measurements with EGM: A
Page 99 and 100: Downloading dataEGM memory can stor
Page 101 and 102: 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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