Trees

Forest Monitoring Tools

About this app

Step 1 - Input distance
Distance data is obtained by other tools such as yard-tape or rangefinder

Step 2 - Set the top/bottom angle
See through the target by Camera

Step 3 - Calculate height



Additional tree data manually collected
1. Horizontal distance – measured by rangefinder or measuring tape
2. Diameter – measuring tape or trunk caliper
3. Tree name -- Select from list

Operation procedure;
1. Start app, and wait several seconds until GPS location is displayed
2. Tap tree name for selecting species name
(Tree Name list is editable from menu, and direct editing /Android/Data/com.forest.trees/files/forest/Species_Data.txt as well
3. Input Diameter manually
4. Focus on tree top, and tap “Top” for view angle of tree top
5. Focus on center mark with tree bottom, and tap “Bottom” for view angle of tree bottom
(In that time, bearing data and time data is memorized)
6. Tap “Cal” for tree height calculation
7. Check the data, and tap “RECORD” for data recording

Data is stored to Internal storage (Android/Data/com.forest.trees/files/YYYYMMDD_data.csv)

Species List Data is edited by Option Menu - Species Editor

Ratings and reviews

Great app. Thank you! One request, the cross hairs and target area get obscured by the big inclination angle #s for people like me with bad eyes and large text size setting. Would love to be able move the inclination or manually reduce the size. I can email a screenshot also. Would also love to be able to change exposure settings so I can work at night easier.

Good app for tree surveys but could do with a way of recording the crown spread to the North, South, East and west directions, with an on screen compass would be useful. Also good but not essential would be able to adjust the species name as well (although we can do this through notes). As we often deal with hundreds of trees it would be great to be able to recall records within the app rather than have to check the csv file everytime as well. But in general, very useful!

Very useful app. When zoomed in on a distant tree, it can be difficult to to reach the on-screen buttons without moving the cross hair. Would like to see an optional mode where Volume Down records the bottom measurement, and Volume Up records the top.

What’s new

Tree data list view is added.
Tree names are editable by view mode.
Preference data (setting information) are stored internal storage.