The Waldzustandserhebung (WZE) app is the field data capture tool for forest environmental monitoring. The annual crown condition survey and further inventories are recorded digitally right at the monitoring plot – with or without a network connection.

Recording forms are generated from JSON schemas and can be adapted without shipping a new release. A map with offline tile caching, external GNSS receivers over Bluetooth, azimuth and distance measurement and plausibility checks support the work in the stand. Recording and control groups work under the four-eyes principle: draft, submission, review, approval.

All data is held offline-first on the device and synchronises automatically as soon as a connection is available. The application runs as a PWA in the browser, as an Android app and as a desktop application for Windows and Linux. Developed for the Forestry Competence Centre Eberswalde (LFE), with the source code openly available.