The Minnesota Grow Tube Method (GTM) Program

Stay connected via our GTM Facebook Page – The Grow Tube Project

 

Interested in helping with maintenance and data collection in Minneapolis and Saint Paul?

Use ArcGIS and access a map and data collection form here – Minneapolis Grow Tubes – or search for “Minneapolis Grow Tubes” at ArcGIS.com

This data can be accessed via a desktop computer or mobile device with a cellular or Wi-Fi connection.

 

Desktop ArcGIS Instructions

Typical screen with basemap layer and points (white circles) for trees and tubes

Typical screen with basemap layer and points (white circles) for trees and tubes

 

If you click on a point this screen opens:

If you click on a point this screen opens:

 

By clicking on the “Edit” you can edit fields at each point:

By clicking on the “Edit” you can edit fields at each point

 

This opens screen of editable and non-editable fields.

Non-Editable Fields

ID, Address, Street, SPP (species), Park and GTM Type – these are there for location and identification reference.

Editable Fields

Editor Name(s) – Include your name or email address (first names are okay if you are concerned about privacy)

Date Last Visited – this only lets you input the date when you visited the site

Alive? (Y/N) – just enter “Y” or “N”

  • Trees that are alive will appear as white points with a black outline
  • Trees that are dead will appear as black points with a white out line.
  • Trees that have no data in this field will appear as red points with a black outline.
  • Once this field is changed to Y or N the map will automatically update the symbol to allow tracking of work performed.
  • Carefully enter only a Y or N to ensure a correct symbol reassignment.
  • If the correct value isn’t entered the point will stay red.

Height (cm) – measure the height from the soil line to the top of the terminal bud in centimeters to the nearest 0.5cm

Maintenance Required – very briefly describe maintenance needs (e.g. tube missing, net missing, tree dead?, stake broken, etc.)

If there is date data in this field you can delete it:

If there is date data in this field you can delete it:

 

Work Performed – enter any work you performed during your visit (e.g. mulched, watered, new net, new Stretch Locks, etc.)

Now you can close the edit window (below left) and your data is added to the database. Be careful to avoid deleting the point (below right):

Now you can close the edit window (below left) and your data is added to the database. Be careful to avoid deleting the point (below right): Be careful to avoid deleting the point (below right):

All data is updated in real-time so your edits are applied immediately!

 

Mobile ArcGIS Instructions

First, download the ArcGIS app for your mobile device (available for iOS, Android and Windows Mobile)

ARCGIS app icon
Use this one!
Explorer for ARCGIS icon
DON’T use this one!

 

Once installed, search for “Minneapolis Grow Tubes” – you don’t need to log in to access the map!

 

The interface for mobile devices is very similar to the desktop version but can vary greatly between mobile operating systems. You use pinch, swipe, tap and tap hold functions to access map features and points.

The mobile interface can take some practice so you might want to use the desktop first while you’re making your first foray into this system.

If you have any questions, please send me an email!

Giblin@umn.edu

THANKS and Good Luck!