Tree Growth (Griffin, Scotland)
Dendrometer Measurements in Griffin, Scotland
This project is a cooperation together with:
Steven Adams, University of Glasgow
Leena Vihermaa, University of Glasgow
Barry Gardiner, Northern Research Station
Objectives
The objective of the experiment is to continuously monitore the growth of Sitka spruce (Picea sitchensis (Bong.) Carr) trees throughout the year. The data will be used to analyse the growth process on a high temporal resolution.
The five experimental trees are located in a plantation stand at Griffin, Scotland. The University of Edinburgh runs a flux tower at the site, at which all major meteorological parameters are measured. These data will be used at a later stage as input parameters for a tree growth model.
Setup
The measuring devices used in this experiment are linear voltage displacment transducers (lvdt), which have a very high sensitivity (75 mv/V/mm). Since the transducers are powered by a 10 V source and the maximum resolution of the data logger (CR23X, Campbell Scientific) is 0.33 μV the theoretical resolution is higher than 1 μm.
The lvdts are measured once every two minutes. Other sensors that are connected to the data logger are TDRs (x4) for measuring soil moisture and a temperature and relative humidity probe (CS215, Campbell Scientific).
Time series
Photos
