benitezrcamilo / fragscape

A QGIS plugin to compute mesh effective size

New in FragScape 2.0 :

• Raster mode
• Algorithm to compare 2 results layers

Overview

FragScape is a QGIS 3 plugin.

Its purpose is to compute landscape fragmentation metrics defined by Jaeger (Jaeger 2000). Among these metrics, effective mesh size has been widely used to quantify landscape fragmentation.

FragScape defines a 4 steps process from raw data to computed metrics and allow user to save configuration so that results can be reproduced with same context.

It has been developped by Mathieu Chailloux at INRAE, for the French ecological network resource center (driven by French ministry of ecology).

Installation

FragScape requires QGIS 3. Go to plugins menu, install/manage plugins, activate experimental plugins and FragScape should be available. Install it and a grid icon should appear. Otherwise, it is available in plugins menu.

Documentation

Available documentation:

• FragScape User Guide

Example

Sample data is provided with plugin here

Results with CUT method :

Results with Cross-Boundary Connection method :

To reproduce above results, see "Example" section of User Guide.

Steps

FragScape is a 4 steps plugin :

1. Parameters setting
2. Land cover elements selection and preprocessing
3. Additional data selection and preprocessing
4. Metrics computation

Each step is detailed in plugin help panel.

Contact

Mathieu Chailloux (INRAE/UMR TETIS)- [email protected]

Jennifer Amsallem(INRAE/UMR TETIS) - [email protected]

Jean-Pierre Chéry (AgroParisTech/UMR TETIS) - [email protected]

Quotation

Chailloux, M. & Chéry, J.P. & Amsallem, J. (2019) FragScape : a QGIS plugin to quantify landscape fragmentation

Links

• FragScape git repository
• INRAE
• AgroParisTech
• UMR TETIS
• French ecological network resource center
• French ministry of ecology