The tools builds on ongoing research on landscape fragmentation, see for example Andersson, E., and Ö. Bodin. 2009. Practical tool for landscape planning? An empirical investigation of network based models of habitat fragmentation. Ecography 32(1): 123-132.

and Zetterberg, A., U. Mörtberg, and B. Balfors. 2010. Making graph theory operational for landscape ecological assessments, planning, and design. Landscape and Urban Planning 95(4): 181-191.
 
MatrixGreen is the main output of a recent project gathering a number of different land-use planners, ecologists and others in the Stockholm County. You can read more about the project here (in Swedish only)

Freely available
MatrixGreen is freely available for anyone to use under the condition that

1. it is not redistributed

2. the use is strictly non-commercial

3. it is properly cited: Bodin, Ö. and A. Zetterberg (2010) MatrixGreen User's Manual: Landscape Ecological Network Analysis Tool. Stockholm university and Royal Institute of Technology (KTH), Stockholm.
 
To get access to your own copy of MatrixGreen (MG), send an email to orjan.bodin'AT'stockholmresilience.su.se or aze'AT'kth.se with the following information:

Your name
Your email
The name and address of your organization
Phone
Your position/role (e.g. researcher, consultant, etc)
 
You will then get information on how to download the setup files from an ftp server (i.e. you will get an IP address and a username/password combination).
 
Read more about how to install and use the programme here (pdf, 2 MB)

Status and support
The tool is still under development and should at this stage be considered as a prototype. The most recent version is 1.7.0, but that only works if you are running ArcInfo/ArcMap 10.0. If you are running ArcInfo/ArcMap 9.3.x, the most recent version is 1.6.4. Make sure you install the right version, otherwise the tool will not work.

We are unfortunately not able to provide 24/7 support for MatrixGreen, but if you encounter any problems, please send a mail to either orjan.bodin'AT'stockholmresilience.su.se or aze'AT'kth.se and try to be as precise as possible about your issue.

Please note
We are currently aware of some problems when assessing links. This particularly applies when accessing links based on the least cost path approach (LCP). We are planning to fix this, however we are currently not able to say when this could be done. We recommend everyone to be very cautious and always visually inspect the results from the link assessments (for example, are there some links that are obviously missing?).

Acknowledgment
The development of MatrixGreen was funded by:

- Stockholm County (Stockholms läns landsting)

- The Royal Swedish Academy of Agriculture and Forestry (Kungliga skogs- och lantbruksakademin)

- The Swedish Research Council (Formas)

- The Stockholm County Administrative Board (Länsstyrelsen i Stockholms län) and by the municipalities in Stockholm County that participated in the project.