However , the disadvantages of these methods are that only information about one single branch is obtained and it will be quite laborious to measure an entire tree or forest .
Huang et al. refined this method later in 2005 by making use of strain gauges .
The disadvantages of these methods are that only information about one single branch is obtained and it will be quite laborious to measure an entire tree or forest .
Huang et al. refined this method later in 2005 by making use of strain gauges .