Tāne’s Tree Trust

Archive Database

Kauri thinning trials, Great Barrier Island

Document Type
Numerical data
Author
Lloyd, R.C., Beekhuis, J.
Project Creator
NZ Forest Service
Current Holder
Forest Research Institute
Accession Number
TTT000071
Old Accession Number
TTT000071
Location
Held in Scion archives
MS Number
FRI 36
Other Reference Number
Sample plots A173/1, 2, 3; A174/1
Future Storage
Forest Research Institute archives
Period
1956-1986
Volume
100 pp
Content
Location plans. Measurement data and correspondence, progress reports. Procedure for plot establishment (1956). Memo (5pp) from H Beekhuis to R Lloyd on mensurational aspects. Register sheet - controlled by FRI, initially to determine growth response of kauri and regeneration. Fiueld book references - cover 3 plots: 173/1, 173/2, 173/3. Anonymous (?Beekhuis) undated copy of general remarks on kauri thinning plots, including A174/1 at Katikati Forest. In A173/1 and /2, kanuka nurse and kauri thinnings removed by felling, destroying understorey trees. Thinning by ringbarking in A173/3. Best kauri on slope, not ridge tops. Master copy of good summary is final file entry (received by D McKenzie, 1986?). Interim report on A173 series (3 plots) on kauri thinning response and regeneration (6pp). Results in tables 1958-1978. Concluded that thinning could increase annual diameter growth from 4.4mm to 9mm. Annual height growth for all plots 12-20 cm/yr.
Source
Kaiarara, Great Barrier Is
Future Work
refer G Steward, compiling data from all kauri thinning plots.
General Note
Valuable series of kauri thinning trials. Category A plot - summary sheet held. Location plans and maps of tree position are held in separate folder in the same vertical file. Also separate folder for metric data for A173, A173/2, A173/3. Other folders have data on diameter and height.
Researchers
R Lloyd, H Beekhuis
Security
Medium
Restriction
Subject to FRI approval
Species
kauri (Agathis australis)
Keywords
Great Barrier Island, Growth Rates, Kauri, Thinning
Subject Areas