There are various ways to measure plant health, and we’ve seen many projects creating open-source solutions. One we haven’t seen is a dendrometer, which involves measuring various physi… ...

Take a pencil and move several meters away from the tree. Outstretch your arm and hold the pencil so that you can measure the height of the tree on the pencil with your thumb.

Tree growth is one of the most essential and widely collected woody plant traits. Yet, the traditional method to measure tree growth is awkward and time consuming. Scientists have developed a new ...